54 research outputs found
Psilota viridescens Young and van Steenis 2020, sp. nov.
No full textPsilota viridescens Young and van Steenis sp. nov. (Species plate: Fig. 36; Genitalia: Fig. 46 E–F; Map: Fig. 65A) Diagnosis: Face orange, densely white pollinose, with white pile. Thorax metallic blue. Hind femur with a distinct rounded apicoventral setulose carina. Hind tibia simple. Calypter pale. Halter pale. Abdomen metallic green. Body length: 7.7–8.0 mm. Description: MALE: Head: Head dull orange, face densely white pollinose. Face and frons white pilose, vertex black pilose. Scape and pedicel entirely orange, postpedicel brown on apical edge and orange below. Postpedicel oval, approximately 1.5 times as long as wide. Eye densely white pilose. Thorax: Thorax metallic blue. Legs almost entirely orange, with femora orange-brown. Hind femur with a distinct rounded apicoventral setulose carina. Hind tibia simple, with no basoventral spur. Pleuron shining, free of pollinosity. Pile on pleuron white. Pile on scutum and scutellum mixed black and white. Wing colourless, extensively bare on basal half. Cells c, br, bm, r 1 entirely bare. Cells cua, m 4, dm, r 4+5, and r 2+3 bare on basal half. Alula completely microtrichose. Halter pale. Calypter pale. Abdomen: Abdomen metallic green. Abdomen entirely white pilose. Sternites metallic green, and white pilose. Genitalia: Epandrium compact, about as long as tall. Cercus approximately triangular. Outer lobe of surstylus inserted at mid-height of inner lobe, curved downwards on apical third, with apex of lobe thickened and curved backwards towards base of surstylus. Inner lobe of surstylus broadening over entire length, with a large ventral excavation at midlength, rounded at apex. Phallapodeme smooth. Gonostylus slightly darkened. FEMALE: Identical except for normal sexual dimorphism. Etymology: The specific epithet viridescens is Latin, and means “greenish”. This is in reference to colouration of this species. Specimens examined: HOLOTYPE: AUSTRALIA: Queensland: Sunnybank, -27.578997 153.059008, 18.IX.1927, UQIC_ Reg 94550, (1♂ QM). PARATYPE: Queensland: Dunwich, North Stradbroke Island; -27.500000 153.400000; 22.VIII.1958; coll. S.S. Sekhon; UQIC_ Reg 94720; (1♀, QM). Discussion: Nothing is known about the biology of this species.Published as part of Young, Andrew D., Skevington, Jeffrey H. & Steenis, Wouter Van, 2020, Revision of the Psilota Meigen, 1822 flower flies (Diptera: Syrphidae) of Australia, pp. 1-127 in Zootaxa 4737 (1) on pages 87-89, DOI: 10.11646/zootaxa.4737.1.1, http://zenodo.org/record/366949
A multigene phylogeny of the eristaline flower flies (Diptera: Syrphidae), with emphasis on the subtribe Criorhinina
No full textMoran, Kevin M., Skevington, Jeffrey H., Kelso, Scott, Mengual, Ximo, Jordaens, Kurt, Young, Andrew D., Ståhls, Gunilla, Mutin, Valerii, Bot, Sander, Zuijen, Menno Van, Ichige, Katsuyoshi, Steenis, Jeroen Van, Hauser, Martin, Steenis, Wouter Van (2022): A multigene phylogeny of the eristaline flower flies (Diptera: Syrphidae), with emphasis on the subtribe Criorhinina. Zoological Journal of the Linnean Society 194: 120-135, DOI: 10.1093/zoolinnean/zlab00
FIGURE 37. P. viridis Macquart. A in Revision of the Psilota Meigen, 1822 flower flies (Diptera: Syrphidae) of Australia
No full textFIGURE 37. P. viridis Macquart. A) male dorsal habitus, B) male anterolateral face, C) male lateral habitus. Scale bar =1 mm.Published as part of Young, Andrew D., Skevington, Jeffrey H. & Steenis, Wouter Van, 2020, Revision of the Psilota Meigen, 1822 flower flies (Diptera: Syrphidae) of Australia, pp. 1-127 in Zootaxa 4737 (1) on page 90, DOI: 10.11646/zootaxa.4737.1.1, http://zenodo.org/record/366949
FIGURE 35. P. tristis Klocker. A in Revision of the Psilota Meigen, 1822 flower flies (Diptera: Syrphidae) of Australia
No full textFIGURE 35. P. tristis Klocker. A) male dorsal habitus, B) male anterolateral face, C) male lateral habitus. Scale bar =1 mm.Published as part of Young, Andrew D., Skevington, Jeffrey H. & Steenis, Wouter Van, 2020, Revision of the Psilota Meigen, 1822 flower flies (Diptera: Syrphidae) of Australia, pp. 1-127 in Zootaxa 4737 (1) on page 80, DOI: 10.11646/zootaxa.4737.1.1, http://zenodo.org/record/366949
FIGURE 4 in Revision of the Psilota Meigen, 1822 flower flies (Diptera: Syrphidae) of Australia
No full textFIGURE 4. Psilota alexanderi sp. nov., genitalia lateral. Illustration by Jessica Hsiung.Published as part of Young, Andrew D., Skevington, Jeffrey H. & Steenis, Wouter Van, 2020, Revision of the Psilota Meigen, 1822 flower flies (Diptera: Syrphidae) of Australia, pp. 1-127 in Zootaxa 4737 (1) on page 21, DOI: 10.11646/zootaxa.4737.1.1, http://zenodo.org/record/366949
FIGURE 54 in Revision of the Psilota Meigen, 1822 flower flies (Diptera: Syrphidae) of Australia
No full textFIGURE 54. Known range of A) P. brunnipennis sp. nov.; B) P. calva sp. nov.Published as part of Young, Andrew D., Skevington, Jeffrey H. & Steenis, Wouter Van, 2020, Revision of the Psilota Meigen, 1822 flower flies (Diptera: Syrphidae) of Australia, pp. 1-127 in Zootaxa 4737 (1) on page 112, DOI: 10.11646/zootaxa.4737.1.1, http://zenodo.org/record/366949
FIGURE 19. P. femoralis Schiner. A in Revision of the Psilota Meigen, 1822 flower flies (Diptera: Syrphidae) of Australia
No full textFIGURE 19. P. femoralis Schiner. A) male dorsal habitus, B) male anterolateral face, C) male lateral habitus. Scale bar =1 mm.Published as part of Young, Andrew D., Skevington, Jeffrey H. & Steenis, Wouter Van, 2020, Revision of the Psilota Meigen, 1822 flower flies (Diptera: Syrphidae) of Australia, pp. 1-127 in Zootaxa 4737 (1) on page 50, DOI: 10.11646/zootaxa.4737.1.1, http://zenodo.org/record/366949
FIGURE 53 in Revision of the Psilota Meigen, 1822 flower flies (Diptera: Syrphidae) of Australia
No full textFIGURE 53. Known range of A) P. basalis Walker; B) P. bicolor sp. nov.Published as part of Young, Andrew D., Skevington, Jeffrey H. & Steenis, Wouter Van, 2020, Revision of the Psilota Meigen, 1822 flower flies (Diptera: Syrphidae) of Australia, pp. 1-127 in Zootaxa 4737 (1) on page 111, DOI: 10.11646/zootaxa.4737.1.1, http://zenodo.org/record/366949
Psilota livida Young and van Steenis 2020, sp. nov.
No full textPsilota livida Young and van Steenis sp. nov. (Species plate: Fig. 22; Genitalia: Fig. 43 E–F; Map: Fig. 58A) Diagnosis: Metallic blue species with face thinly white pollinose. Frons with mixed black and white pilosity, vertex dark pilose. Pleuron white pilose, scutum white pilose anterior to transverse suture, mostly black pilose behind transverse suture. Scutellum mostly black pilose. Hind leg simple. Halter dark brown. Calypter pale. Body length: 7.3–8.2 mm. Description: MALE: Head: Head black, face shining blueish-black, with thin white pollinosity covering the sides of the face. Central stripe of face shining, free of pollinosity. Face white pilose, frons with mixed black and white pilosity, vertex black pilose. Antenna entirely orange, baseoflagellomere oval, approximately 1.5 times as long as wide. Eye densely white pilose. Thorax: Thorax blueish-black, shining and free of pollinosity. Legs mostly dark brown, with apices of fore- and mid femora, basal one-third of fore tibia orange. Hind leg simple. Pleuron shining, pollinosity free. Pile on pleuron white, pile on scutum white anterior to transverse suture, mostly black posterior to suture. Scutellum mostly black pilose, with a few white pile. Wing colourless, with cell bm entirely bare, cell cua bare on anterior half, cells c, and r 1 bare on basal half, and cells m 4, dm, and r 4+5 bare on basal one-quarter. Alula completely microtrichose. Halter white. Calypter white. Abdomen: Abdomen blueish-black. Tergite 1 white pilose, tergite 2 mostly white pilose with a few short black pile medially, tergite 3 white pilose laterally with many black pile medially, tergite 4 mostly white pilose with a few black pile medially. Sternites black, white pilose. Genitalia: Epandrium compact, about as long as tall. Cercus approximately triangular. Outer lobe of surstylus inserted at midheight and mid-length of the inner lobe, short, thick and curved smoothly downwards over its entire length. Inner lobe of surstylus long and straight, approximately 4 times as long as wide (at base), with a semicircular ventral excavation at two-thirds its length, almost square at apex. Phallapodeme smooth. Postgonite thick, not darkened. FEMALE: Identical except for normal sexual dimorphism. Etymology: The specific epithet livida derives from the Latin “lividus”, meaning “blueish black, or leaden”. This is in reference to the blueish-black abdomen of Psilota livida sp. nov., which distinguishes it from similar species such as Psilota azurea sp. nov. and Psilota calva sp. nov. Specimens examined: HOLOTYPE: AUSTRALIA: Queensland: 6km N Taroom; -25.600000 149.766667; eucalyptus woodland, 25.XI.1992; coll. G. Daniels, GDCBReg_19609; (1♂, AM). PARATYPE: Queensland: Mc- Ilwraith Range 8km NE Coen, -13.888333 143.253500, 200m; mercury vapour light, 7.I.1995, G. and A. Daniels, GDCBReg_19571, (1♀, GDCB). Discussion: This species has been collected in a Eucalyptus woodland at a mecury vapour light, otherwise nothing is known about its biology.Published as part of Young, Andrew D., Skevington, Jeffrey H. & Steenis, Wouter Van, 2020, Revision of the Psilota Meigen, 1822 flower flies (Diptera: Syrphidae) of Australia, pp. 1-127 in Zootaxa 4737 (1) on page 55, DOI: 10.11646/zootaxa.4737.1.1, http://zenodo.org/record/366949
Psilota xanthostoma Young & Skevington & Steenis 2020, sp. nov.
No full textPsilota xanthostoma Young sp. nov. (Species plate: Fig. 38; Map: Fig. 66A) Diagnosis: Face and gena entirely yellowish-orange, frons black. Fore and mid legs entirely yellowish-orange. Thorax black. Abdomen orangeish-brown. Hind leg simple. Body length: 5.1 mm. Description: MALE: unknown. FEMALE: Head: Vertex frons and occiput black, face and gena yellowish-orange. Head shining, free of pollinosity. Face and eye sparsely yellow pilose. Vertex yellow pilose. Antenna entirely yellowish-orange. Thorax: Thorax black, shining, pollinosity free. Fore and mid leg entirely yellowish-orange. Hind femur and tibia orangeishbrown, hind tarsomeres yellow. Hind femur unmodified, with only a few weak, black setulae apicoventrally. Thorax entirely yellow pilose. Halter yellow. Calypter pale. Wing colourless, entirely microtrichose. Abdomen: Abdominal sclerites orangeish-brown. Tergites white pilose. Sternites white pilose. Sternite 1 pollinose. Etymology: The specific epithet ‘ xanthostoma ’ consists of xantho, derived from the Latin “xanthous”, meaning “yellow”, and stoma, meaning “hole”, or mouth. This is in reference to the yellow face, gena, and “mouth” area of P. xanthostoma sp. nov. Specimens examined: HOLOTYPE: AUSTRALIA: Queensland: Carnarvon National Park, Mount Moffatt summit, 1097m, - 25.059722S 148.043889E, 29.xi.1997, J. Skevington and C. Lambkin, T221267 (1♀, QM). Discussion: This species is known from a single female specimen, collected on Mt. Moffat in Carnarvon National park, Queensland. Although no male has been collected, a fragment of the DNA barcode was successfully obtained from the holotype, so if a male is collected in the future it can be confidently matched to the holotype using DNA evidence. The barcode data extracted from the holotype is publicly available on the BOLD website (Process ID: SYRAU381-18), as detailed above in the Materials and methods section.Published as part of Young, Andrew D., Skevington, Jeffrey H. & Steenis, Wouter Van, 2020, Revision of the Psilota Meigen, 1822 flower flies (Diptera: Syrphidae) of Australia, pp. 1-127 in Zootaxa 4737 (1) on pages 92-94, DOI: 10.11646/zootaxa.4737.1.1, http://zenodo.org/record/366949
- …
