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Peratrimera Hauser & Irwin 2005, n. gen.

Author: Hauser Martin
Irwin Michael E.
Publication venue
Publication date: 14/06/2005
Field of study

Peratrimera n. gen. (Figs. 1, 2) Diagnosis. The genus is characterized by the long first flagellomere and three flagellomeres (Fig. 2B); the two notopleural macrosetae on the thorax (Fig. 1B); the closed wing cell m 3; the setae on R 1 and R 4+5 (Fig. 2B); the vein C ending at M 2; the absence of a lateral macrosetae on the hind coxa; the short setae on the abdomen, the elongate shape of the abdomen; and the upcurved setae on the 8th abdominal sternite of the female (Fig. 1B). Type species. Peratrimera mexicana n. sp., by present designation. Etymology. Peras (Gr.) = extremity, tri (Gr.) = three, meros (Gr.) = part, division, referring to the three flagellomeres of the antenna.Published as part of Hauser, Martin & Irwin, Michael E., 2005, A new remarkable Xestomyzinae (Insecta, Diptera, Therevidae) genus from Mexican Amber, pp. 39-45 in Zootaxa 1008 (1008) on page 4

ZENODO

Stenogephyra dianeae Webb & Hauser, 2011, spec. nov.

Author: Hauser Martin
Webb Donald W.
Publication venue
Publication date: 31/12/2011
Field of study

Stenogephyra dianeae spec. nov. (Figs. 1–3, 16–21, 44) Etymology. This species is named for Diane Elizabeth McClain, the daughter of Donald and Lois Webb. Diagnosis. Stenogephyra dianeae spec. nov. is similar to S. minuta and S. parkeri spec. nov. in possessing two pairs of notopleural macrosetae, in lacking dorsocentral macrosetae, in having the katepisternum completely covered with silver pubescence, and in having vein M2 reaching the hind margin of the wing. It differs from S. minuta and S. parkeri spec. nov. in having silver pubescence along anterior eye margin with a large triangular extension at height of antenna, which nearly reaches antennal base and a second, smaller, semicircular extension at height of median ocellus, both are connected by narrow line along anterior eye margin (Fig. 2); halter with more white than brown; and the male gonocoxite possessing a posteroventral projection in lateral view (Fig. 18). Description of male. Variation (n=10). Body length 3.3–4.5, 3.9 mm. Head. Length 0.40–0.62, 0.56 mm. Eyes separated by distance about two times width of ocellar tubercle. Frons (Fig. 2) dark reddish brown, glossy with silver pubescence along eye margin with large triangular extension at height of antenna, which nearly reaches antennal base and second, smaller, semicircular extension at height of median ocellus, both are connected by narrow line along eye; setae dark brown to black, elongate, ventrolateral to ocellar tubercle and dorsolateral to antennal base. Antenna dark reddish brown; antenna/head length 1.9–3.0, 2.2; scape length 0.14–0.16, 0.15 mm, width 0.08–0.12, 0.10 mm, length/width 1.2–1.8, 1.4, scape/pedicel length 1.8–3.0, 2.3, scape/flagellum width 0.6–1.0, 0.8, setae dark brown; pedicel length 0.05–0.08, 0.06 mm, width 0.08–0.11, 0.09 mm, length/width 0.5–0.8, 0.7, setae dark brown, short; flagellum length 0.90–1.10, 0.97 mm, width 0.08–0.14, 0.12 mm, length/width 6.4–11.8, 8.1, flagellum/scape length 6.3–7.1, 6.7. Parafacial (Fig. 2) dark reddish brown, glossy with broad callus ventral to antennal bases with narrow silver pubescence along margin of eye which expands laterally almost to antennal base; setae black, elongate. Maxillary palpus whitish brown to dark reddish brown; length 0.24–0.28, 0.26 mm, width 0.06– 0.08, 0.07 mm, length/width 3.0–4.3, 3.8; setae dark brown, elongate. Gena (Figs. 2–3) rounded, pubescence silver, dense; setae white, elongate. Occiput (Fig. 3) dark reddish brown, pubescence silver over broad ventral area; setae white, elongate. Thorax. Macrosetae 2 np, 0 dc. Mesonotum dull black, dorsocentral vitta broad as gray pubescent band; setae black, short. Pleuron dark reddish brown, pubescence whitish gray, anepisternum and anepimeron glossy; setae white, elongate on anepisternum (scattered), katepisternum (dorsal fourth), laterotergite and scutellum. Wing. Membrane hyaline; length 2.8–3.3, 3.1 mm, width 1.0–1.2, 1.1 mm, length/width 2.7–3.2, 2.9. M1 and M2 originate separately from discal cell (on MEI 124816 these veins originate together from discal cell; on 124818 they originate from small petiole); M2 reaching wing margin. Halter predominately white, occasionally with some brown laterally and stalk darker. Legs. Dark reddish brown, concolorous, pubescence on coxae and femora white, dense. Abdomen. Dark reddish brown, glossy, tergites 1–4 with narrow, white posterior margin; dorsal and lateral setae black, short, appressed. Terminalia (MEI 124825). Dark brown. Tergite 8 (Fig. 16), posterior margin broadly emarginate; setae brown. Sternite 8 (Fig. 17) posterior margin truncate; setae dark brown, continuous across posterior margin. Gonocoxite ventral view (Fig. 17) extending posterolaterally as narrow projection, setae brown; lateral view (Fig. 18), dorsal margin straight, rounded ventrally, extending posteriorly to narrow projection with short ventroposterior projection. Aedeagus with distiphallus lateral view (Fig. 19) thick, apex short, sinuate; ejaculatory apodeme lateral view (Fig. 19) clavate anteriorly. Female. Similar to male except for following. Variation (n=10). Body length 3.8–5.2, 4.5 mm. Head. Length 0.54–0.80, 0.66 mm. Antenna/head length 0.9–2.1, 1.5; scape length 0.10–0.20, 0.15 mm, width 0.08–0.10, 0.10 mm, length/width 1.3–2.3, 1.6, scape/pedicel length 1.7–3.0, 2.3, scape/flagellum width 1.0–1.3, 1.1; pedicel length 0.06–0.08, 0.07 mm, width 0.06–0.09, 0.08 mm, length/width 0.8–1.3, 0.9; flagellum length 0.53–0.92, 0.72 mm, width 0.08–0.10, 0.09 mm, length/width 5.3–11.5, 8.6, flagellum/scape length 3.7–6.8, 4.8. Maxillary palpus length 0.24–0.28, 0.26 mm, width 0.05–0.07, 0.06 mm, length/width 3.7–4.8, 4.2. Thorax. Macrosetae 2 np, 0 dc. Wing. Length 2.7–4.0, 3.4 mm, width 1.0–1.2, 1.1 mm, length/width 2.7–4.0, 3.2. Abdomen. Terminalia (MEI 161382). Sternite 8 (Fig. 20) oval, anterior margin rounded; furca (Fig. 21) quadrate, length 0.36 mm, width 0.18 mm. Distribution. Stenogephyra dianeae spec. nov. is known from South Africa, Western Cape Province (Fig. 44). Habitats and Phenology. Stenogephyra dianeae spec. nov. has been handnetted or collected in Malaise traps in Fynbos on mountains, in a small marsh bordered by Fynbos, across a hillside trail, in a dry stream bed, on a sandstone or shrubby hillside, and in a wash with springs. Adults have been collected from September through November. Specimens examined (n = 92). Type specimens. The holotype male of Stenogephyra dianeae spec. nov. (MEI 124816) is labeled “ SOUTH AFRICA: W. Cape Prov., Cederberg Mountains, Elizabethfontein, 19 km ENE Clanwilliam, shrubby hillside; 15–XI–1996, 400– 500m, 32° 04' 45''S, 19° 03' 29''E., M. E. Irwin” and is deposited in NMSA. PARATYPES. SOUTH AFRICA, WESTERN CAPE PROVINCE. 10 km S Citrusdale Koomlandskloof [- 32.667, 19.017], 5–7.X.1994, Soderlund, M., 3ɗ MEI 152371–3, 1Ψ 152372 (NHRS), Malaise trap, Fynbos on mountain; 5–9.X.1994, Soderlund, M., 1Ψ MEI 152379 (NHRS), Malaise trap, small marsh bordered by Fynbos on mountain slope; 12 km N Citrusdale, Koedoeskop Farm [-32.488, 18.96], 250m, 8–12.X.2002, Irwin, M.E., Parker, F.D., 17Ψ MEI 148439–44, 148693–703 (MEIC), Malaise across hillside trail; 13.5 km ENE Clanwilliam, Pakhuis Pass [-32.138, 19.021], 900–1000m, 15.XI.1996, Irwin, M.E., Schlinger, E.I., Webb, D.W., Yeates, D.K., Wiegmann, B.M, Gaimari, S.D., Metz, M.A., Holston, K.C., 5ɗ MEI 124817–21 (INHS), Malaise trap in stream bed; 6 km SE Montagu [-33.833, 20.173], 400m, 30.IX.2004, Hauser, M., 7ɗ MEI 167907–8, 167910, 167912–4, 167916, 1Ψ 161380 (INHS); Cederberg Mountains, 19 km ENE Clanwilliam [-32.098, 19.066], 400–500m, 14.XI.1996, Metz, M.A., 1ɗ MEI 124834 (INHS), Malaise trap, sandstone hillside; Irwin, M.E., Schlinger, E.I., Webb, D.W., Yeates, D.K., Wiegmann, B.M, Gaimari, S.D., Metz, M.A., Holston, K.C., 2ɗ MEI 124833, 124835 (INHS), Malaise trap, sandstone hillside; 13.XI.1996, Irwin, M.E., 1ɗ MEI 124830 (MEIC); Irwin, M.E., Schlinger, E.I., Webb, D.W., Yeates, D.K., Wiegmann, B.M, Gaimari, S.D., Metz, M.A., Holston, K.C., 2Ψ 124811–2 (INHS), Malaise trap on shrubby hillside; 15.XI.1996, Irwin, M.E., 8ɗ MEI 124815 (CSCA), 124822 (SAMC), 124823–28 (MEIC), 6Ψ 124807 (CSCA), 124808 (NMSA), 124809 (SAMC), 124810, 124786–7 (MEIC), shrubby hillside; 16–17.XI.1996, coll.?, 2ɗ MEI 124831–2 (MEIC); Irwin, M.E., Schlinger, E.I., Webb, D.W., Yeates, D.K., Wiegmann, B.M, Gaimari, S.D., Metz, M.A., Holston, K.C., 2Ψ MEI 124813–4 (INHS), Malaise trap, shrubby hillside; Swartberg Mountains, 4 km S Prince Albert [-33.267, 22.046], 700m, 2–23.X.2004, Irwin, M.E., Parker, F.D., Hauser, M., 9ɗ MEI 161355, 161363, 161365, 161373, 167909, 167911, 167915, 167917–8, 23Ψ 161356–62, 161364, 161366–8, 161370–2, 161375, 161377, 161379, 161381–6 (MEIC), Malaise trap in wash with springs.Published as part of Webb, Donald W. & Hauser, Martin, 2011, Revision of the genus Stenogephyra Lyneborg (Diptera: Therevidae: Phycinae), pp. 67-85 in Zootaxa 2837 on pages 71-75, DOI: <a href="http://zenodo.org/record/201693">10.5281/zenodo.201693</a&gt

ZENODO

Spheginobaccha pamela Thompson & Hauser 2015, sp. n.

Author: Hauser Martin
Thompson F. Christian
Publication venue
Publication date: 29/12/2015
Field of study

Spheginobaccha pamela sp. n. Figs 4–6 Etymology: We here dedicate this species to Pamela [neé Usher] Stuckenberg, Brian’s devoted wife who also published on horse flies (Tabanidae). Proper name in apposition. Description: Male. Length: Body (PT), 16.3 mm; wing (PT), 10.6 mm. Head: Black except lunule more reddish brown, sparsely white pollinose, yellow pilose; broadly dichoptic; antenna reddish brown; scape and pedicel black pilose; basoflagellomere light brown; arista yellow. Thorax: Pronotum yellow, yellow pilose; propleuron black anteriorly, yellow posteriorly, yellow pilose; scutum black except dull yellow marginally, sparsely grey pollinose with dark brown pollinose medial vitta, short yellow pilose; postalar callus yellow, yellow pilose; scutellum yellow, yellow pilose; pleuron mainly dull yellow, white pilose, dark on posterior antepisternum; calypter white; halter yellow. Legs: coxae and trochanters black, pale pilose; femora black except yellow on basal ¼, pale pilose on pale areas, black pilose on dark areas; pro and meso tibia black except apical &frac13; reddish brown, black pilose; metatibia yellow on basal ½, black apically, black pilose; pro and mesotarsi brownish black except apical tarsomere reddish, black pilose. Wing: Light brown anteriorly, extending posteriorly to vein R and R 4+5 and along veins, elsewhere hyaline, microtrichose except bare cell cup (anal), except for along its margins. Abdomen: Elongate, only very slightly petiolate, black; 1 st tergum golden pilose; 2 nd tergum mainly light brown pilose, except with apical margin broadly golden pilose and with a small apicomedial triangle patch of black pile; 3 rd tergum dull black pollinose except sparsely greyish white pollinose basolaterally, black pilose except white pilose basolateral and along lateral margin; 4 th tergum golden pilose; genitalia white pilose. Holotype &male;: SOUTH AFRICA: KwaZulu-Natal: Manguzi Forest Reserve, 26°59'32"S 32°43'25"E, 61 m, 13–17.xii.2010, Malaise trap in indigenous sand forest, A. K. Kirk-Spriggs, specimen code BMSA(D) 30059 (deposited in BMSA). Paratypes: 1&male; same data as holotype with specimen code BMSA(D) 30058 (deposited in USNM); 1&male; KwaZulu-Natal: St. Lucia Estuary, 10.ii.1974 W.W. Middlekauf (deposited in CAS). Remarks:As noted in the key to species below, pamela is most similar related to guttula, but differs in abdominal coloration, the male genitalia and the shape of the antenna.Published as part of Thompson, F. Christian & Hauser, Martin, 2015, In honor of Brian Stuckenberg: Two new Spheginobaccha species of flower flies (Diptera: Syrphidae) from the Afrotropics, pp. 769 in African Invertebrates 56 (3) on pages 772-774, DOI: 10.5733/afin.056.0318, <a href="http://zenodo.org/record/7914911">http://zenodo.org/record/7914911</a&gt

ZENODO

Ptecticus bannapensis Rozkošný & Hauser, 2009, sp. nov.

Author: Rozkošný Rudolf
Hauser Martin
Publication venue
Publication date: 31/12/2009
Field of study

Ptecticus bannapensis sp. nov. (Figs 4–7) Type material. Holotype, male, LAOS: Bolikhamsai Province, Ban Nape environs, 18°20´N, 105°08´E, 400– 100 m a.s.l., 7–16.v.2004, E. Jendek & O. &Scaron;au&scaron;a, in ZIB. Etymology. The name of this species indicates the type locality (Ban Nape) in Laos where the unique male was collected. Diagnosis. A larger species from the histrio -group with a yellowish brown upper frons, vertex and median occipital sclerite. The thorax is yellowish brown, without dark, broad, longitudinal stripes. The legs are predominantly yellow, only the hind tibia and the last three tarsomeres on all legs are blackish. The male terminalia and especially the aedeagal complex are asymmetrical. Description. Male. Head almost semiglobular in lateral view, only slightly narrowed ventrally in profile, ocellar triangle distinctly prominent, frontal callus arched but barely as high as width of fore tibia in the middle. Majority of head yellowish brown including median occipital sclerite, only ocellar tubercle and rest of occiput black. Upper frons gradually tapering towards frontal callus, about as broad as anterior ocellus at narrowest point. Frontal callus somewhat paler, almost drop-like, with a fine longitudical medial groove, face and proboscis also yellowish brown. Antenna concolourous with face, both basal segments indistinctly darker, shining, inner finger-like extension of pedicel well developed, flagellar complex laterally somewhat depressed, longer than high, suboval but more pointed at base of arista, arista dark brown. Head pubescence inconspicuous, uniformly yellow, more brownish only on postocular area. Basal antennal segments covered with dense short yellowish brown hairs. Thorax uniformly pale brown, pleura more yellow, scutum without broad longitudinal vittae as in other species of group. Thoracic pubescence short and appressed to semi-erect, golden yellow on scutum and scutellum, more yellowish on pleura, longer and erect only on propleuron and katatergite. Wing membrane uniformly tinged with pale brown, stronger veins, costal cell and pterostigma yellow, weaker veins brown. Crossvein R-M very slightly beyond origin of R2+3, radial triangle (r2+3) not as high as half length of crossvein R-M, R2+3 converging to R1 and touching it at wing margin..Upper proximal part of discal cell distinctly arched, crossvein M-Cu short but distinct. Vein M3 markedly sinuate, its short apical part (barely equalling length of crossvein M-Cu) missing. Postcubitus (CuP) distinct, almost as strong as cubital vein in basal part, yellow. Halter pale but its knob black. Posttegula with short black hairs. Fore and mid legs pale yellow, only their last three tarsomeres deeply black and black haired, pubescence on femora and tibiae very short, mostly appressed and golden yellow, only on ventral surface of tarsomeres very dense and more erect. Hind coxa, trochanter and femur yellow and again with short golden yellow pile, hind tibia black and black haired except for both ends which are with dense golden yellow hairs distinct distally up to beginning of distal third on ventral as well as dorsal surface. Last three tarsomeres again black and black haired but also tarsomere 2 darkened and black haired dorsally. Ventral dense fringe of hind tarsomeres golden yellow. Abdomen yellow, with relatively reduced black transverse bands on tergites 2–5, all of them ending far before lateral margins of tergites, only very narrow and interrupted medianly on tergites 2 and 3. Broader transverse bands on tergites 4 and 5 occupying slightly more than medial third of tergites and with a distinct medial incision at posterior margin. All sternites yellow to yellowish brown. Abdominal pubescence generally short and appressed, predominantly golden yellow but black on dark spots. Longer and erect yellow hairs distinct only on sides of abdominal segment 1. Male terminalia (Figs 4–7) yellow and short yellow haired, only gonostylus with long, black hairs. All parts distinctly asymmetrical. Proctiger and cerci rather long, cerci longer than proctiger and subpointed apically, epandrium longer that wide, with a semicircular proximal emargination. Genital capsule long and somewhat constricted at middle, asymmetrically dilated proximally. Gonostylus elongate and rounded apically, with a beak-like projection on lower inner side. Aedeagal complex highly asymmetrical, S-shaped in lateral view, more slender than in related species, with distinctly reduced left distal part and mainly black medially and distally. Length: body 17.6 mm, wing 15.5 mm. Female. Unknown. Remarks. The wing venation and structures of the male terminalia confirm an evident relationship to the other members of the histrio group though the typical broad longitudinal vittae on the scutum are absent. Likewise as in P. brevipennis and P. pangmapensis the abdomen is not spatulate but slender, spindle-shaped. The shape of gonostylus resembles P. proximus but the epandrium and the genital capsule are much longer and the aedeagal complex is quite different.Published as part of Rozkošný, Rudolf & Hauser, Martin, 2009, Species groups of Oriental Ptecticus Loew including descriptions of ten new species with a revised identification key to the Oriental species (Diptera: Stratiomyidae), pp. 1-30 in Zootaxa 2034 on pages 4-6, DOI: <a href="http://zenodo.org/record/186331">10.5281/zenodo.186331</a&gt

ZENODO

Himantigera xanthopoda Fachin & Hauser 2018, nov. sp.

Author: Fachin Diego Aguilar
Hauser Martin
Publication venue
Publication date: 14/12/2018
Field of study

Himantigera xanthopoda nov. sp. (Figs 5, 22, 31, 37, 43, 54, 75–77, 102–105, 111, 117) http://zoobank.org/NomenclaturalActs/ 0626C676-B558-4470-8C30-563F11BF749E Diagnosis (male). Legs entirely yellow to white (Fig. 117). R 2+3 originating well beyond r–m, at a distance two times longer than r–m (Fig. 31). Abdomen elongate, wider apically, widest at fourth segment (Fig. 54). Material examined. HOLOTYPE: &male;, COSTA RICA, Puntarenas Prov. [Province], Estación Biológica Monteverde, 1540 m, 10°19’23”N 84°48’38”W, 13.vi.2000, N.E. Woodley (USNM-USNMENT01447641). PARATYPES: 1 &male; (left antenna and right wing slide-mounted), COSTA RICA, same date as holotype (USNM- USNMENT01447642). 1 &male;, Puntarenas Prov. [Province], San Vito, Estación Biológica Las Alturas, 1500 meters, 8°57’N 82°50’W, iii.1992, Malaise trap, P. Hanson (USNM-USNMENT01447643); 2 &male;, San Vito, Estación Biológica Las Alturas, 1500 meters, 8°57’N 82°50’W, iv.1992, Malaise trap, P. Hanson (1 &male;, USNM- USNMENT01447644; 1 &male;, MZUSP-MZ 052813); 1 &male;, Las Alturas, 8.95°N 82.83°W, iv.1992, 1500m, Malaise trap, P. Hanson (LACM); 1 &male;, Las Alturas, 8.95°N 82.83°W, 11–13.vi.1998, B. Brown, V. Berezovskiy, Malaise trap #2, 1500m (LACM). 1 &male;, NICARAGUA, Matagalpa Prov. [Province], Selva Negra Mountain Resort, lower forest, 1200–1300 meters, 12°59.89’N 85°54.64’W, 18.vi.2007, mercury vapor light, N.E. Woodley (USNM- USNMENT01447685). Additional material: 1 &male;, MEXICO, Chiapas, Município de Angel Albino Corzo (Jaltenango), above Finca Custepec, 1371 m, 11.viii.1981, D.E & L.A. Breedlove (UCB). Description. Male. Length: body, 8.0–12.0 mm; wing, 7.0–10.0 mm. Head (Fig. 22). Upper frons narrower than widest margin of frontal callus. Frontal callus margin divergent towards face. Arista-like terminal flagellomere with four setae basally (Fig. 5). Thorax. Legs entirely yellow, except hind tarsomeres white. Wing (Fig. 31). R 2+3 originating well beyond r–m, at a distance two times longer than r–m (Fig. 37). Alula with microtrichia only along anterior half (Fig. 43). Abdomen (Fig. 54). Elongate, two times longer than wide, widest at fourth segment; entirely dark; tergites 1–3 with strong metallic green reflections, tergites 4–5 and sternites with coppery reflections; long golden pilosity laterally on tergites 1–3; short yellow pilosity on tergites 4–5 and sternites. Terminalia (Figs 75–77, 102–105). Genital capsule as wide as high, its posterior margin weakly pointed dorsally; medial process of synsternite weakly developed (Fig. 105), few thin setae apically. Anterior end of phallus distally to anterior margin of genitalia. Gonostylus at least two times longer than wide, pointed apically. Epandrium slightly wider than long (Fig. 75). Female. Unknown. Etymology. The specific epithet is feminine and it comes from the Greek word xanthos, meaning yellow, and podos, meaning foot, as a reference to the yellow leg color. Geographic distribution. Mexico (Chiapas), Nicaragua (Matagalpa), Costa Rica (Puntarenas) (Fig. 130). Comments. One additional specimen from Mexico (Chiapas) has the apical third of the hind femur dark brown, however, overall morphology and male genitalia fit with that of the other specimens.Published as part of Fachin, Diego Aguilar & Hauser, Martin, 2018, Taxonomic revision of the Neotropical genus Himantigera James, 1982 (Diptera: Stratiomyidae: Sarginae), including the description of two new species and a key to the known species, pp. 451-498 in Zootaxa 4531 (4) on pages 475-479, DOI: 10.11646/zootaxa.4531.4.1, <a href="http://zenodo.org/record/2614794">http://zenodo.org/record/2614794</a&gt

ZENODO

Stenogephyra janiceae Webb & Hauser, 2011, spec. nov.

Author: Hauser Martin
Webb Donald W.
Publication venue
Publication date: 31/12/2011
Field of study

Stenogephyra janiceae spec. nov. (Figs. 4–5, 22–27, 44) Etymology. This species is named for Janice Elizabeth Wettstone, the daughter of Donald and Lois Webb. Diagnosis. Stenogephyra janiceae is similar to S. namibiensis spec. nov., S. schlingeri spec. nov. and S. torrida in having silver pubescence on gena (lateral view) restricted to band along posterior margin of eye, ending at lower eye margin (Figs. 5, 9, 13, 15), ending at lower eye margin; possessing one pair of dorsocentral macrosetae and in having vein M2 short, not reaching the hind margin of the wing (Lyneborg 1987, Fig. 6). Stenogephyra janiceae spec. nov. differs from S. torrida in lacking silver pubescence across the dorsal margin of the occiput (Fig. 4); silver pubescence on frons forming two connected semicircular markings ending at level of lower eye margin (Fig. 4); “nose” more pronounced (Fig. 5); and legs dark brown. It differs from S. schlingeri spec. nov. in having the head glossy with an area of silver pubescence lateral to antennal base then along margin of eye on parafacial before becoming enlarged ventrally (Fig. 4), the silver pubescence on the occiput reaching the vertex (Fig. 5), lower face with central hemispherical bulge and laterally the gena and lower frons forming another bulge separated from central bulge by deep furrow, creating impression of a “nose” (Fig. 5), the setae on the gena and occiput dark brown to black, three pairs of notopleural macrosetae, and katepisternum glossy on the ventral two-thirds with faint pubescence across dorsal margin. It differs from S. namibiensis spec. nov. in having a silver pubescence stripe on face ending before ventral margin of face (Fig. 4); silver pubescence on frons between median ocellus and eye absent; silver pubescence on occiput not forming continuous band posterior to ocellar tubercle (Fig. 4); halter predominately dark brown to black and katepisternum glossy on the ventral two-thirds with faint pubescence across dorsal margin, and the female furca with bifurcate membranous projection anteriorly (Fig. 27). Description of male. Variation (n=8). Body length 3.1–4.0, 3.7 mm. Head. Length 0.52–0.68, 0.57 mm. Eyes separated by distance about two times width of ocellar tubercle. Frons (Fig. 4) dark reddish brown, glossy with silver pubescence along margin of eye and expanding dorsolateral to antennal base; setae black, short. Antenna dark reddish brown; antenna/head length 1.4–2.0, 1.7; scape length 0.16–0.22, 0.17 mm, width 0.08–0.10, 0.09 mm, length/width 1.8–2.0, 1.9, scape/pedicel length 2.0–2.8, 2.2, scape/flagellum width 0.8–0.9, 0.9, setae dark brown; pedicel length 0.07–0.08, 0.08 mm, width 0.08–0.09, 0.08 mm, length/width 0.9–1.0, 0.9 setae dark brown, short; flagellum length 0.70–0.82, 0.77 mm, width 0.10–0.11, 0.10 mm, length/width 7.0–8.2, 7.7, flagellum/scape length 3.7–5.1, 4.5. Parafacial (Fig. 4) distinctively projecting anteriorly ventral to antennal bases, dark reddish brown, glossy with silver pubescence along margin of eye and expanding ventrally; setae black, short, sparse. Maxillary palpus dark reddish brown; length 0.22–0.30, 0.26 mm, width 0.06 mm, length/width 3.7–5.0, 4.3; setae dark brown, elongate. Gena (Figs. 4–5) bulbous, broadly rounded, dark reddish brown, glossy; setae black, elongate. Occiput (Fig. 5) dark reddish brown, glossy with silver pubescence along margin of eye; setae white. Thorax. Macrosetae 3 np, 1 dc. Mesonotum dull reddish brown, pubescence gray becoming glossy laterally; setae black, short. Pleuron dark reddish brown, glossy, dorsal margin of meron with gray pubescence; setae dark brown to black on anepisternum (across dorsal margin), laterotergite and scutellum. Wing. Membrane pale gray; length 2.5–2.7, 2.6 mm, width 0.8–1.0, 0.9 mm, length/width 2.7–3.1, 2.9. M1, M2, and M3 originate separately from discal cell, M2 not reaching wing margin. Halter stalk and dorsal surface of knob dark brown, ventral surface of knob pale yellow. Legs. Coxae dark reddish brown, pubescence gray; setae black. Femora dark brown, pubescence gray. Tibiae and tarsi dark brown. Abdomen. Dark reddish brown, glossy, tergites 1–4 with posterior margin whitish yellow; dorsal and lateral setae black, short, appressed. Terminalia (MEI 148460). Dark brown. Sternite 8 (Fig. 22) quadrate, posterior margin broadly rounded; setae dark brown, continuous across posterior margin. Gonocoxite ventral view (Fig. 22), posterior margin truncate then extending posterolaterally to pointed projection, setae dark brown, thick; dorsal view (Fig. 23); lateral view (Fig. 24), dorsal margin straight, rounded ventrally, extending posteriorly to pointed projection, posteroventral projection absent. Aedeagus with dorsal apodeme (Fig. 23) forming broad gonocoxal bridge; distiphallus dorsal view (Fig. 23), narrow, tapered posteriorly; lateral view (Fig. 25) thick, apex short, sinuate; ejaculatory apodeme lateral view (Fig. 25), anterior half dark brown, spherical. Female. Similar to male except for following. Variation (n=10). Body length 4.7–6.0, 5.1 mm. Head. Length 0.60–0.80, 0.75 mm. Antenna/head length 1.00–1.24, 1.16; scape length 0.16–0.22, 0.21 mm, width 0.08–0.12, 0.09 mm, length/width 1.7–2.4, 3.7, scape/pedicel length 2.0–3.1, 2.7, scape/flagellum 1.0–1.3, 1.1 width; pedicel length 0.07–0.08, 0.075 mm, width 0.08–0.10, 0.09 mm, length/width 0.78–1.00, 0.94; flagellum length 0.50–0.64, 0.56 mm, width 0.08–0.10, 0.08 mm, length/width 5.6–8.0, 6.9, flagellum/scape length 2.6–3.4, 2.7. Maxillary palpus length 0.24–0.28, 0.27 mm, width 0.05–0.07, 0.06 mm, length/width 4.0–4.8, 4.3. Thorax. Macrosetae 3 np, 1 dc. Wing. Length 3.0–4.0, 3.5 mm, width 0.7–1.2, 1.0 mm, length/width 2.8–4.3, 3.8. Abdomen. Terminalia (MEI 148480). Sternite 8 (Fig. 26) broad, sides and anterior margin rounded. Furca (Fig. 27) quadrate with bifurcate membranous projection anteriorly; length 0.30 mm, width 0.24 mm. Distribution. Stenogephyra janiceae spec. nov. is known from South Africa, Western Cape Province (Fig. 44). Habitats and Phenology. Stenogephyra janiceae spec. nov. has been collected in Malaise traps on vegetated dunes. Adults have been collected in September through November. Specimens examined (n = 55). Type specimens. The holotype male of Stenogephyra janiceae spec. nov. (MEI 148460) is labeled “ SOUTH AFRICA: Western Cape prov.; nr Welgemoed, ca. 20km S Worcester, Malaise on vegetated dune, 7/ 13-IX-2002, ME Irwin, FD Parker, 200 m; 33º43.19’S. 019º26.64’E.” and is deposited in NMSA. PARATYPES. SOUTH AFRICA. Western Cape Province. 14 km NW Robertson, at highway R60 [-33.778, 19.762], 270m, 7–13.X.2002, Irwin, M.E., Parker, F.D., 3Ψ MEI 148481–3 (MEIC), Malaise trap on vegetated dune; 20 km S Worcester, near Welgemoed [-33.732, 19.444], 200m, 7–13.X.2002, Irwin, M.E., Parker, F.D., 15Ψ MEI 148465–7, 148469–80 (MEIC), Malaise trap on vegetated dune; 24 km W Worcester, Highway N1 [-33.703, 19.238], 300m, 15–25.XI.1999, Irwin, M.E., Schlinger, E.I., Parker, F.D., 1ɗ MEI 124797, 1Ψ 124790 (INHS), Malaise trap; Swartberg Mountains, 4 km S Prince Albert [-33.267, 22.046], 700m, 2–23.X.2004, Irwin, M.E., Parker, F.D., Hauser, M., 8ɗ MEI 161355 (CSCA), 161363 (SAMC), 16709, 167911 (MEIC), 161365, 167915, 167917–8 (INHS), 27Ψ 161356 (CSCA), 161357 (NMSA), 161358 (SAMC), 161359–62, 161364, 161366–77 (MEIC) 161379, 161381–6 (INHS), Malaise trap.Published as part of Webb, Donald W. & Hauser, Martin, 2011, Revision of the genus Stenogephyra Lyneborg (Diptera: Therevidae: Phycinae), pp. 67-85 in Zootaxa 2837 on pages 75-76, DOI: <a href="http://zenodo.org/record/201693">10.5281/zenodo.201693</a&gt

ZENODO

Spheginobaccha stuckenbergi Thompson & Hauser 2015, sp. n.

Author: Hauser Martin
Thompson F. Christian
Publication venue
Publication date: 29/12/2015
Field of study

Spheginobaccha stuckenbergi sp. n. Figs 1–3 Etymology: Many species of Spheginobaccha have been named after distinguished dipterists associated with this genus or other flower flies. So, we here dedicate this species to Brian Roy Stuckenberg (1930.iv.07 – 2009.ii.08; see Kirk-Spriggs (2012)), who made the first modern revision of the genus Paragus Latreille, using male genitalic characters (Stuckenberg 1954 a, b). Description: Male. Length: Body (HT), 13 mm; wing (HT), 9 mm. Head: Face yellow, sparsely white pollinose medially, denser laterally, white pilose; gena narrow, brownish yellow, white pilose; lunule reddish brown; frons reddish brown, shiny on medial 4&frasl;5, narrowly golden pollinose laterally and dorsally, yellowish-white pilose; vertex reddish brown, indistinctly rugose, with fine longitudinal grooves, sparsely greyish-white pollinose, yellow pilose; ocelli distinct, normal; ocellar triangle isosceles, about twice as broad as long; occiput blackish-brown, silvery pollinose, white pilose on ventral &frac23;, on dorsal &frac13; reddish brown, sparsely pollinose, white pilose. Antenna orange, black pilose; basoflagellomere large, triangular, about ½ as long as broad; arista black except orange base, as long as basoflagellomere. Thorax: Postpronotum yellow, shiny, white pilose; scutum reddish brown except broadly yellow laterally, sparsely greyish-white pollinose, yellow pilose except bare medially and sublaterally in the form of vittae; postalar callus yellow, yellow pilose; scutellum reddish brown, greyish-white pollinose, yellow pilose; pleuron yellow except black macula posterior to postpronotum, black vitta dorsad to mesocoxa and around metathoracic spiracle, sparsely pollinose except densely silvery white pollinose on katepisternum and posterior anepisternum, white pilose; calypter white; halter yellowish white. Legs: coxae brownish to black, sparsely pollinose, black pilose; trochanters yellowish brown, shiny, black pilose; femora reddish brown to black except basal ¼ and apex white, black pilose except pale on pale areas; protibia brownish black except basal ¼ white, black pilose except pale on pale areas; meso and metatibia brownish black except basal &frac13; white, black pilose except pale on pale areas; tarsi brownish orange, black pilose. Wing: hyaline except dark brown on stigma and area anterior to vein Rs; microtrichose except bare as follows: cell r on basal ¾ posterior to spurious vein, cell bm on basal &frac23;, cell cup on basal 4&frasl;5, anal lobe on basal ½ and all of alula. Abdomen: Petiolate; 1 st segment short, slightly triangular, about 1&frasl;8 (0.12) as long as abdomen; 2 nd segment cylindrical, about &frac13; (0.28) as long as abdomen; 3 rd segment triangular, about twice as wide apically as basally, about ¼ (0.24) as long as abdomen; 4 th segment cylindrical, about &frac13; (0.36) as long as abdomen; 1 st tergum shiny bluish grey (steel-blue), grey pollinose, white pilose; 2 nd tergum bluish grey, sparsely silvery pollinose except for denser basolateral triangular macula, white pilose; 3 rd tergum brownish black and black pilose on basal &frac13;, bluish grey on apical &frac23;. with silvery pollinose macula on medial &frac13;, sparsely pollinose apically, white pilose on apical &frac23;; 4 th tergum brownish black and black pilose on basal 1&frasl;5, bluish grey elsewhere except apical margin pale yellowish, with narrow slivery pollinose macula posterior to basal black area, elsewhere sparsely pollinose, white pilose; 1 st and 2 nd sterna light brownish yellow, sparsely pollinose, white pilose; 3 rd and 4 th sterna light brownish, black pilose except yellow pilose on apical margin of 4 th; male genitalia yellowish brown, white pilose; cercus yellow. Holotype &male;: MADAGASCAR. Mahajanga Province, Majunga Analamanitra Forest, 14 km northeast of Misingo, 16°08'S 45°42'E, 11–18.xii.2007, M. E. Irwin & R. Harin’Hala, Malaise trap, dense dry forest, 65 ft [19.8 m], MG-3811, CASLOT 034973 (deposited in CAS). Paratypes: 3&male; data same as holotype (1&male; USNM, 2&male; CAS); 1 &female; same as holotype, except 16–23.x.2007 (CAS); 1&male; Namoroka Village, Befatika Andranovary, 7km nortwest of Vilanandro Village, 16°28.4'S 45°23.48'E, 9–16.xii.2007, M. E. Irwin & R. Harin’Hala, Malaise trap, dense dry forest, 400 ft [122 m], MG-40B-12 (USNM); 2&male; Majunga Ambatofolaka, Namoroka, 53 km from Soalala, 3 km north of Vilanando Village, 16°28.04'S 45°23.48'E, 16–28.xii.2007, M. E. Irwin & R. Harin’Hala, Malaise trap, dense dry forest, 400 ft [122 m] (CAS); 1&male; Parc National, Tsingy de Bemaraha, 3.4 km Bekpaka, Tombeau Vazimba, 19°08'31"S 44°49'41"E, 50 m, 6–10.xi.2001, B. Fisher, lot BLF 4233 (deposited in CSCA). Remarks: Spheginobaccha stuckenbergi is most similar to guttula, both occur in Madagascar, and both have similar antennae, but the new species differs clearly in abdominal pattern and wing microtrichia.Published as part of Thompson, F. Christian & Hauser, Martin, 2015, In honor of Brian Stuckenberg: Two new Spheginobaccha species of flower flies (Diptera: Syrphidae) from the Afrotropics, pp. 769 in African Invertebrates 56 (3) on pages 770-772, DOI: 10.5733/afin.056.0318, <a href="http://zenodo.org/record/7914911">http://zenodo.org/record/7914911</a&gt

ZENODO

Sargus dichrous Fachin & Hauser 2018, comb. nov.

Author: Fachin Diego Aguilar
Hauser Martin
Publication venue
Publication date: 14/12/2018
Field of study

Sargus dichrous (Schiner, 1868) comb. nov. (Fig. 132, A–E; A–C, holotype, NMW) Chrysonotus dichrous Schiner, 1868: 62 (original description). Type locality: Venezuela (see comments below). Holotype &female; [NMW]. Diagnosis. This species can be easily distinguished from the other Neotropical Sargus by an entirely metallic blue to purple abdomen (Fig. 132) that strongly contrasts to the color of the thorax, which is mostly orange in both sexes except for an oval-shaped medial dark brown macula on the scutum, a dark brown ventral mark on the katepisternum, a medially dark brown laterotergite and a dark brown mediotergite with purple reflections in males (Fig. 132, D–E). The fore and mid legs are mostly orange and the hind leg is often entirely dark brown, but it can be almost entirely orange on its femur and tibia. Male holoptic and female dichoptic, upper frons dark brown to black with metallic blue reflections, with a well-marked white callus frontally subdivided into two spots by a dark brown line in both sexes. Male often smaller and slender than females. Material examined. Type material: HOLOTYPE (Fig 132, A–C), &female; labeled: “ Lindig / 1864 / Venezuela [printed on white paper]”; “ dichrous [handwritten on white paper] / Alte Sammlung [printed on white paper]” (NMW). Additional material: 4 &female;, COLOMBIA, Boyacá, SFF Iguaque, 5°70’N 73°46’W, 11–17.iii.2000, P. Reina, MT [malaise trap] #8, CAP- 8, 2795 m (3 &female; LACM; 1 &female; USNM); 3 &female;, 01–19.iv.2000, MT#9, CAP- 31, 2980 m (LACM); 2 &female;, 17.viii–01.ix.2000, MT, CAP- 518, 2850 m (LACM). 3 &female;, Arcabuco, SFF Iguaque, 2855 m, Bosque Rastrojo Cañon de Mamarramos, Malaise 4, 28.ii–16.iii.2000, P. Reina (LACM); 2 &female;, 3450 m, 16.iii–01.iv.2000, Malaise 1 (LACM). 3 &female;, SFF Iguaque, Cabaña, Carrizal, 5°42’N 73°45’W, 2850 m, 01–23.ix.2000, P. Reina, MT, CAP-614 (LACM). 4 &female;, SFF Iguaque, Cabaña, Carrizal, 5°25’N 73°27’W, 2850 m, 07–24.ii.2001, M. 1273, P. Reina (LACM). 2 &female;, SFF Iguaque, Cabaña Mamarramos, 5°42’N 73°45’W, 2855 m, 23.v–08.vi.2000, P. Reina, Malaise trap, CAP-149 (LACM); 3 &female;, 17.viii–1.ix.2000, P. Reina, CAP- 519, 2855 m (LACM). 1 &male;, 9 &female;, SFF Iguaque, Cabaña, Mamarramos, 5°25’N 73°27’W, 2855 m, 23.ix–11.x.2000, P. Reina, M.752 (LACM); 4 &female;, 04– 21.xii.2000, CAP1080 (LACM); 1 &male;, 7 &female;, 21.xii.2000 – 07.i.2001, M.1072 (LACM); 1 &female;, 07–21.i.2001, M.1252 (LACM); 1 &female;, 21.i.–07.ii2001, M.1248 (LACM); 3 &female;, 13.xi–04.xii.2001, MT, CAP-1063 (LACM). 1 &female;, SFF Iguaque, La Planada, 5°25’N 73°27’W, 2850 m, 23.v–08.vi.2000, M.152, P. Reina leg. (LACM); 1 &female;, 21.x.2000 – 07.i.2001, P. Reina, MT, M.1070 (LACM); 2 &female;, 21.i–07.ii.2001 (LACM). 1 &female;, SFF Iguaque, Qda Carrizal, 5°69’N 73°45’W, 02–19.iv. 2000, 3350 m, P. Reina, Malaise trap, CAP-26 (LACM); 1 &female;, 25.vi–13.vii.2000, CAP-247 (LACM); 1 &female;, 17.viii–01.ix.2000, CAP-520 (USNM). 5 &female;, SFF Iguaque, Qda Carrizal, 5°42’N 73°45’W, 04– 21.xii. 2000, 3350 m, P. Reina, Malaise trap, CAP-1078 (LACM). 1 &female;, SFF Iguaque, Qda Carrizal, 5°25’N 73°27’W, 21.xii.2000 – 07.i. 2001, 3350 m, P. Reina, M.1071 (LACM); 9 &female;, SFF Iguaque, Qda Los Francos, 5°42’N 73°27’W, 2860 m, MT, 07–24.ii.2001, P. Reina, CAP-1270 (LACM). 1 &female;, Cauca, PNN Isla Gorgona, 2°97’N 78°18’W, 25–28.ii.2000, B. Brown, G. Kung (LACM). 1 &female;, Cundinamarca, PNN Chingaza, Bosque Palacio, 4°52’N 73°75’W 2930 m, 17.i–04.ii.2001, L. Cifuentes, Malaise trap, CAP-1258 (LACM). Geographic distribution. Colombia (Boyacá, Cauca, Cundinamarca) and Venezuela. Comments. This species clearly belongs to the genus Sargus. The color pattern of S. dichrous (Schiner, 1868) comb. nov. seems to be unique among Neotropical Sargus, making it readily identifiable. Besides the records included here, there are additional females from Colombia in LACM. The type locality of this species as indicated in the original description is “ Colombia ”, but the label on the type (Fig. 132, A–C) reads “ Venezuela ”. It was stated as being a male in Schiner (1868) and in Woodley (2001), but it is a female.Published as part of Fachin, Diego Aguilar & Hauser, Martin, 2018, Taxonomic revision of the Neotropical genus Himantigera James, 1982 (Diptera: Stratiomyidae: Sarginae), including the description of two new species and a key to the known species, pp. 451-498 in Zootaxa 4531 (4) on pages 486-492, DOI: 10.11646/zootaxa.4531.4.1, <a href="http://zenodo.org/record/2614794">http://zenodo.org/record/2614794</a&gt

ZENODO

Stenogephyra schlingeri Webb & Hauser, 2011, spec. nov.

Author: Hauser Martin
Webb Donald W.
Publication venue
Publication date: 31/12/2011
Field of study

Stenogephyra schlingeri spec. nov. (Figs. 12–13, 36–39, 44) Etymology. This species is named for Evert I. Schlinger, a strong supporter of therevid research and a productive collector. Diagnosis. Stenogephyra schlingeri spec. nov. is similar to S. janiceae spec. nov., S. namibiensis spec. nov., and S. torrida in possessing silver pubescence on gena (lateral view) restricted to band along posterior margin of eye, ending at lower eye margin (Figs. 4, 8, 12, 14); one pair of dorsocentral macrosetae; and in having vein M2 short, not reaching the hind margin of the wing (Lyneborg 1987, Fig. 6). Stenogephyra schlingeri spec. nov. differs from S. janiceae spec. nov., S. namibiensis spec. nov. and S. torrida in having the silver pubescence on frons restricted to large semicircular expansion at level of antennal base (Fig. 12); two pairs of notopleural macrosetae; katepisternum completely silver pubescence; lower face broadly rounded (Fig. 13). Description of male. Variation (n=3). Body length 4.0–4.2, 4.1 mm. Head. Length 0.60–0.64, 0.62 mm. Eyes separated by distance about three times width of ocellar tubercle. Frons (Fig. 12) dark reddish brown, glossy with silver pubescence dorsolateral to antennal base; setae black, elongate, scattered ventrolateral to ocellar tubercle and dorsolateral to antennal base. Antenna dark brown; antenna/head length 1.8–2.0, 1.9; scape length 0.14–0.16, 0.15 mm, width 0.10 mm, length/width 1.4–1.6, 1.5, scape/pedicel length 1.8–2.7, 2.2, scape/flagellum width 1.0, setae dark brown, elongate; pedicel length 0.06–0.08, 0.07 mm, width 0.08–0.10, 0.09 mm, length/width 0.6–0.9, 0.8, setae dark brown, short; flagellum length 0.88–1.02, 0.95 mm, width 0.10 mm, length/width 8.8–10.2, 9.5, flagellum/scape length 5.9–7.3, 6.5. Parafacial (Fig. 12) dark reddish brown, glossy, pubescence silver, dense ventrolateral to antennal base (Fig. 12), setae black and whitish brown, elongate. Maxillary palpus black; length 0.24–0.26, 0.25 mm, width 0.06–0.08, 0.07 mm, length/width 3.0–4.3, 3.9; setae dark brown, elongate. Gena (Figs. 12–13) broadly rounded, glossy; setae white, elongate. Occiput (Fig. 13) dark reddish brown, glossy with pubescence silver along margin of eye; setae white, elongate. Thorax. Macrosetae 2 np, 1 dc. Mesonotum black with gray pubescence medially; setae black, short. Pleuron dark reddish brown, pubescence whitish gray, anepisternum, anepimeron, and laterotergite glossy; setae dark brown, elongate on anepisternum (dorsally), laterotergite, and scutellum. Wing. Membrane pale brown; length 2.8–3.0, 2.9 mm, width 1.0 mm, length/width 2.8–3.0, 2.9. M1 and M2 originate separately from discal cell, M2 not reaching wing margin. Halter dark brown. Legs. Dark reddish brown, concolorous, pubescence on coxae white, dense. Abdomen. Dark reddish brown, glossy, tergites 1–4 with narrow, white posterior margin; dorsal and lateral setae black, short. Terminalia (MEI 122603) dark brown. Sternite 8 (Fig. 36) hemispherical, posterior margin truncate, setae dark brown continuous across posterior margin. Gonocoxite ventral view (Fig. 36), quadrate, extending posterolaterally as bluntly pointed projection, setae brown; lateral view (as in Fig. 24), posteroventral projection absent. Aedeagus with distiphallus lateral view (Fig. 37) thick, apex short, sinuate; ejaculatory apodeme lateral view (Fig. 37) clavate anteriorly. Female. Similar to male except for following. Variation (n=8). Body length 3.8–5.2, 4.7 mm. Head. Length 0.54–0.70, 0.61 mm. Antenna/head length 1.4–2.0, 1.7; scape length 0.14–0.20, 0.17 mm, width 0.08–0.11, 0.10 mm, length/width 1.4–2.3, 1.8, scape/pedicel length 2.0–3.2, 2.5, scape/flagellum width 0.8–1.3, 1.0; pedicel length 0.06–0.07, 0.07 mm, width 0.06–0.09, 0.08 mm, length/width 0.7–1.3, 0.9; flagellum length 0.58–0.92, 0.77 mm, width 0.08–0.12, 0.09 mm, length/width 7.0–11.5, 8.4, flagellum/scape length 3.7–5.7, 4.5. Maxillary palpus length 0.24–0.28, 0.26 mm, width 0.06–0.07, 0.06 mm, length/width 3.7–4.7, 4.1. Thorax. Macrosetae 2 np, 0 dc. Wing. Length 2.7–3.5, 3.2 mm, width 1.0–1.2, 1.1 mm, length/width 2.7–3.5, 3.1. Abdomen. Terminalia (MEI 170182). Sternite 8 (Fig. 38) oval, anterior margin emarginate medially with anterolateral projections. Furca (Fig. 39) quadrate; anterior margin with anteromedial and posteromedial process; length 0.28 mm, width 0.14 mm. Distribution. Stenogephyra schlingeri spec. nov. is known from South Africa, East Cape Province (Fig. 44). Habitats and Phenology. Stenogephyra schlingeri spec. nov. has been handnetted or collected in Malaise traps in dry washes. Adults have been collected in November. Specimens examined (n = 14). Type specimens. The holotype male of Stenogephyra schlingeri spec. nov. (MEI 124784) is labeled “ SOUTH AFRICA: Eastern Cape, Wolwekraal Farm, Bauaiaanskloof Mtns, 28 km S Steytlerville; 535 m, malaise in dry wash; 18/ 22-XI-1999, ME Irwin, EI Schlinger, FD Parker, 33º32.76’S 24º21.29’E ” and is deposited in NMSA. PARATYPES. South Africa. Eastern Cape Province. 19 km ENE Steytlerville, Waaipoort Pass [-33.247, 24.33], 600m, 23.XI.1999, Irwin, M.E., Schlinger, E.I., Parker, F.D., 3Ψ MEI 122675 (NMSA), 1226766 (CSCA), 122680 (MEIC); 28 km S Steytlerville, Bauaiaanskloof Mountains, Wolwekraal Farm [-33.546, 24.355], 535m, 18–22.XI.1999, Irwin, M.E., Schlinger, E.I., Parker, F.D., 1ɗ MEI 124784, 1Ψ 170182 (MEIC), Malaise trap in dry wash; 29 km S Steytlerville, Bauaiaanskloof Mountains, Wolwekraal Farm [-33.563, 24.352], 620m, 17–22.XI.1999, Irwin, M.E., Schlinger, E.I., Parker, F.D., 2Ψ MEI 124781 (SAMC), 124780 (MEIC), Malaise trap in dry wash; 3 km N Steytlerville [-33.305, 24.367], 440m, 21–23.XI.1999, Irwin, M.E., Schlinger, E.I., Parker, F.D., 2Ψ MEI 124788–9 (MEIC), Malaise trap in dry creek; 6 km N Steytlerville [- 33.281, 24.38], 500m, 18.XI.1999, Irwin, M.E., Schlinger, E.I., Parker, F.D., 1ɗ MEI 122603, 1Ψ 122604 (INHS), Malaise trap in dry riverbed; 19.XI.1999, 1ɗ MEI 122602 (CSCA), Malaise trap along river syncline cliff; 21/ 23.XI.1999, 1ɗ MEI 124785 (SAMC), Malaise trap in dry riverbed.Published as part of Webb, Donald W. & Hauser, Martin, 2011, Revision of the genus Stenogephyra Lyneborg (Diptera: Therevidae: Phycinae), pp. 67-85 in Zootaxa 2837 on pages 81-82, DOI: <a href="http://zenodo.org/record/201693">10.5281/zenodo.201693</a&gt

ZENODO

Stenogephyra namibiensis Webb & Hauser, 2011, spec. nov.

Author: Hauser Martin
Webb Donald W.
Publication venue
Publication date: 31/12/2011
Field of study

Stenogephyra namibiensis spec. nov. (Figs. 8–9, 28–31, 45) Etymology. ensis (Latin) = a suffix denoting place, locality, country. This name is used as a noun in apposition and refers to the Namib desert of Namibia. Diagnosis. Stenogephyra namibiensis spec. nov. is similar to S. janiceae spec. nov., S. schlingeri spec. nov. and S. torrida in possessing silver pubescence on gena (lateral view) restricted to band along posterior margin of eye, ending at lower eye margin (Figs. 4, 8, 12, 14); one pair of dorsocentral macrosetae, and in having vein M2 short, not reaching the hind margin of the wing (Lyneborg 1987, Fig. 6). Stenogephyra namibiensis spec. nov. differs from S. torrida in having the legs dark brown (mid– and hindfemur occasionally dark yellowish brown). It differs from S. schlingeri spec. nov. in having silver pubescence on frons more developed, forming two connected markings and often reaching below lower eye margin (Fig. 8); lower face with central hemispherical bulge and laterally the gena and lower frons forming another bulge separated from central bulge by deep furrow, creating impression of a “nose” (Figs. 5, 9, 15); and three pairs of notopleural macrosetae. It differs from S. janiceae spec. nov. and S. torrida in having the silver pubescence stripe on face reaching ventral margin of face (Fig. 8); silver pubescence on frons present between median ocellus and eye margin and also forming a complete band posteriorly on occiput behind ocellar tubercle (Fig. 8); halter knob completely white. Description of male. Variation (n=10). Body length 3.3–4.8, 4.1 mm. Head. Length 0.46–0.70, 0.58 mm. Eyes separated by distance over two times width of ocellar tubercle. Frons (Fig. 8) dark reddish brown, glossy with broad band of silver pubescence across area of ocellar tubercle and lateral and dorsolateral to antennal base; setae black, elongate. Antenna dark reddish brown, pubescence light gray; antenna/head length 1.9–2.4, 2.1; scape length 0.09–0.18, 0.14 mm, width 0.10–0.16, 0.11 mm, length/width 0.9–1.5, 1.2, scape/pedicel length 1.5–2.8, 2.1, scape/flagellum width 0.6–0.9, 0.7, setae dark brown; pedicel length 0.05–0.08, 0.07 mm, width 0.08–0.14, 0.10 mm, length/width 0.4–1.0, 0.7, setae dark brown, short; flagellum length 0.85–1.10, 1.01 mm, width 0.14–0.20, 0.16 mm, length/width 5.8–7.9, 6.3, flagellum/scape length 6.1–9.4, 7.5. Parafacial (Fig. 8) expanded, bulbous, dark reddish brown, glossy with broad area of silver pubescence; setae black, elongate. Maxillary palpus brown; length 0.22–0.44, 0.27 mm, width 0.05–0.06, 0.06 mm, length/width 3.0–7.3, 4.6; setae brown, elongate. Gena (Figs. 8–9) rounded, dark reddish brown, glossy; setae white, elongate. Occiput (Figs. 8–9) dark reddish brown, glossy with silver pubescence along posterior margin of eye and across vertex; setae white becoming dark brown dorsally. Thorax. Macrosetae 3 np, 1 dc. Mesonotum dark reddish brown, pubescence gray, dorsocentral and dorsolateral vittae separated by dense line of gray pubescence; setae black, short. Pleuron dark reddish brown, glossy, pubescence gray on dorsal half of anepisternum, over entire meron; setae pale brown on anepisternum (across dorsal margin) and laterotergite, dark brown on scutellum. Wing. Membrane pale gray; length 2.4–3.5, 3.0 mm, width 0.8–1.2, 1.0 mm, length/width 2.5–3.5, 3.0. M1 and M2 originate separately from discal cell, M2 not reaching wing margin. Halter stalk dark brown, knob pale yellow. Legs. Coxae dark reddish brown, pubescence gray; setae yellow. Fore femur dark brown, mid– and hind femur dark yellowish brown. Fore tibiae dark brown, mid– and hind tibia dark yellowish brown. Tarsi dark brown. Abdomen. Dark reddish brown, glossy, tergites 1–2 with posterior area orange brown; dorsal and lateral setae white to pale yellow. Terminalia (MEI 148460). Dark brown. Sternite 8 (Fig. 28) quadrate, posterior margin broadly rounded; setae dark brown, continuous across posterior margin. Gonocoxite ventral view (Fig. 28), posterior margin sinuate then extending posterolaterally to pointed projection, setae dark brown. Aedeagus lateral view (Fig. 29) thick, apex short, sinuate; ejaculatory apodeme lateral view (Fig. 29) pale brown, anterior margin paler, anterior half clavate. Female. Similar to male except for following. Variation (n=10). Body length 3.6–6.1, 5.2 mm. Head. Length 0.50–0.80, 0.68 mm. Antenna/head length 1.24–1.84, 1.52; scape length 0.16–0.28, 0.21 mm, width 0.09–0.12, 0.10 mm, length/width 1.3–2.8, 2.1, scape/pedicel length 2.0–3.5, 2.6, scape/flagellum width 0.6–1.2, 0.8; pedicel length 0.06–0.10, 0.08 mm, width 0.10–0.11, 0.10 mm, length/width 0.6–1.0, 0.8; flagellum length 0.62–0.78, 0.73 mm, width 0.10–0.16, 0.13 mm, length/width 4.5–7.0, 5.8, flagellum/scape length 2.8–4.4, 3.6. Maxillary palpus length 0.18–0.38, 0.27 mm, width 0.06–0.08, 0.06 mm, length/width 3.0–6.3, 4.3. Thorax. Macrosetae 3 np, 1 dc. Wing. Length 3.0–4.5, 4.1 mm, width 1.0–1.5, 1.4 mm, length/width 2.8–3.3, 2.6. Abdomen. Terminalia (MEI 170272). Sternite 8 (Fig. 30) broad, sides and anterior margin rounded. Furca (Fig. 31) oval, densely membranous with large median opening and posterolateral margins sclerotized; length 0.40 mm, width 0.23 mm. Distribution. Stenogephyra namibiensis spec. nov. is known from Namibia (Fig. 45). Habitats and Phenology. Stenogephyra namibiensis spec. nov. has been handnetted on Salvadora persica L. and collected in Malaise traps in riparian and riverine vegetation. Irwin (2001: Figs. 6–7, as S. torrida) showed the seasonal periodicity of males and females of S. namibiaensis spec. nov. emerging along the Kuiseb River, Gobabeb. Adults have been collected throughout the year (Irwin 2001: Figs. 6–7) Specimens examined (n = 130). Type specimens. The holotype male of Stenogephyra namibiensis spec. nov. (MEI 148874) is labeled " NAMIBIA, Namib-Naukluft Park, Namib Desert Res. Stn., Kuiseb River, malaise in riparian vegetation, 420m, 21/ 28-IV-1997; I Kapofi, Irwin, ME, 23&ring;33’45”S, 15&ring;02’38”E"and is deposited in SMWN. PARATYPES. NAMIBIA. Gobabeb, Kuiseb River [-23.549, 15.031], 400m, 12.II.1974, Irwin, M.E., Irwin, B.J., 8Ψ MEI 084320–2, 084324–8 (MEIC), riverine forest and sand; Namib-Naukluft Park, Namib Desert Research Station, Kuiseb River [-23.563, 15.044], 420m, 22.XI.1996, Irwin, M.E., 9ɗ MEI 116566 (CSCA), 116567 (NMSA), 1165668 (SAMC), 116669–74 (MEIC), 25Ψ 116579 (CSCA), 116582 (NMSA), 116583 (SAMC), 116584–7, 116593–604, 116607–11, 170272 (MEIC), Malaise trap, riverine vegetation; 23.XI.1996, 12ɗ MEI 116554–7, 116559–64, 116578, 170273, 7Ψ 0 89477, 116588–92, 170271 (INHS), Malaise trap, riverine vegetation; 8–15.I.1997, Kapofi, I., Irwin, M.E., 6ɗ 148845–50, 9Ψ 148853–61 (MEIC), Malaise trap, in riparian vegetation; 5–14.III.1997, 5ɗ 125167–71, 1Ψ 125165 (MEIC), Malaise trap, in riparian vegetation; 21–28.IV.1997, 25ɗ 148843–4, 148851–2, 148863–73, 148875–84 (MEIC), Malaise trap, in riparian vegetation; 7–13.X.1997, 1ɗ 125173, Malaise trap, in riparian vegetation (MEIC); near Gobabeb, Kuiseb River [-23.34, 15.03], 10– 16.VII.1984, Kuiseb Survey, 3ɗ 122685 –6, (SMWN) Malaise trap, 122677 (SMWN) from Salvadora persica L.; 18–20.III.1983, 11ɗ 122671 –4, 122677 –9, 122681 –4 (SMWN), Malaise trap; Oase, at Gaub River [-23.487, 15.769], 730m, 22.XI.1996, Irwin, M.E., 4ɗ MEI 116558, 116575–7, 1Ψ 116612 (MEIC), Malaise trap, riverine vegetation. Lyneborg (1987) also cited S. namibiensis spec. nov. (as S. torrida) from the mouth of the Swakop River [- 22.683, 14.533] and 5 km E. Swakopmund [-22.683, 14.623].Published as part of Webb, Donald W. & Hauser, Martin, 2011, Revision of the genus Stenogephyra Lyneborg (Diptera: Therevidae: Phycinae), pp. 67-85 in Zootaxa 2837 on pages 77-79, DOI: <a href="http://zenodo.org/record/201693">10.5281/zenodo.201693</a&gt

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