127,066 research outputs found
Siobla foveata Niu & Wei 2011
No full textSiobla foveata Niu & Wei, 2011 (Figs 2 c, 2 d, 5 k, 5 l, 8 b, 12 b, 14 j, 15 j, 18g –l) Siobla foveata Niu & Wei, 2011: 156. Ƥ, type locality: Nantou, Taiwan (China). Variation. There is considerable variation in sculpture of the upper head, mesonotum and 1 st tergite, which may be clearly stronger denser than in the holotype. The metallic blue colour of the head and thorax sometimes turns into coppery green or purple, even if the most common colour is metallic blue. The wings are darkened from apical third to apical two thirds in the females. Females 13-16 mm, males 12-14 mm. Distribution. China (Taiwan). Remarks. This species is similar to S. leucotarsis, but differs from the latter by the following: middle fovea broad and deep; cell C dark brown; inner orbit of female shiny; mesoscutellum strongly elevated, distinctly higher than top of scutum; the apical half of forewing strongly infuscated; the basal half of hind tibia and metabasitarsus entirely yellow, the apex of hind tibia slightly enlarged, 2.2 × as broad as the base of tibia, metabasitarsus 4.5 × as long as broad; each femur, tibia and tarsus of male orange brown. In S. leucotarsis: middle fovea small; cell C brown; inner orbit of female sparsely punctured; mesoscutellum roundly elevated, as high as scutum; the apical 1 / 4 of forewing infuscated; the basal 1 / 3 of hind tibia white, metabasitarsus entirely bluish purple, the apex of hind tibia distinctly enlarged, 2.8 × as broad as the base of tibia in length, metabasitarsus 3.6 × as long as broad; the apical 2 / 3 of fore and middle tibiae blackish brown, apical 2 / 3 of hind tibia and metabasitarsus bluish purple; in male, femora, tibiae and tarsi not orange brown, but similar to the female.Published as part of Niu, Gengyun, Wei, Meicai & Taeger, Andreas, 2012, Revision of the Siobla metallica group (Hymenoptera: Tenthredinidae), pp. 1-49 in Zootaxa 3196 on page 8, DOI: 10.5281/zenodo.28010
Lasioglossum (Dialictus) submandibulare Niu 2020, sp. nov.
No full text<i>Lasioglossum</i> (<i>Dialictus</i>) <i>submandibulare</i> Niu, sp. nov. (Figs 4–5) <p>Type material. Holotype, female, China, Sichuan, Mao Xian (31º43′N, 103º55′E), 25.V.2011, leg. Zeqing Niu.</p> <p> Etymology. The specific name means the new species is very similar to <i>Lasioglossum mandibulare</i> (Morawitz, 1866).</p> <p> Diagnosis. According to the current subgeneric classification of the genus <i>Lasioglossum</i> (Gibbs, 2010), the new species belongs to the subgenus <i>Dialictus</i>. The extraordinary and amazing characters of the new species is its elongated mandible (Fig. 4C) and strongly raised pronotum (Fig. 4G). The new species is very similar to <i>L. mandibulare</i> (Morawitz, 1866) by its elongated mandible. Comparing with the type species of <i>L. mandibulare</i> (Morawitz, 1866) (Astafurova & Proshchalykin, 2018), the species has following characters: head and mesosoma with blue-green metallic reflections; antennal flagellum blackish-brown (Fig. 4A); mandible dark brown (Fig. 4C); all tibiae and tarsi brown (Fig. 5A); punctures on clypeus and supraclypeal area sparser; the dorsolateral angle of pronotum triangle, right-angle apically (Fig. 4D); lateral slope of propodeum smooth, without fine striate (Fig. 4E). Meanwhile, <i>L. mandibulare</i> (Morawitz, 1866) is characterized by: head and mesosoma black, without metallic reflections; antennal flagellum yellowish-brown; mandible yellow; all tarsi yellowishbrown; lateral slope of propodeum with fine striae.</p> <p> The new species is also similar to <i>L. pronotale</i> Ebmer, 2002 by the strongly raised pronotum, but has the head as broad as long, nearly quadrate in frontal view, while the head of <i>L. pronotale</i> is longer than broad, longitudinal rectangular in frontal view.</p> <p>Description. Female. BL 7.0 mm (Fig. 5A); head quadrate in frontal view, nearly as broad as long, HW: HL = 48: 47 (Fig. 5B); vertex long, ocelloccipital distance long, about 4 times as long as the lateral ocellus diameter (Fig. 4A); gena obviously broader than eye, GW: EW = 19: 9 (Fig. 4B). Clypeus rectangle, nearly 3 times as broad as long, apical margin truncate (Fig. 4C); mandible elongate, with single preapical tooth (Fig. 4C); forewing with three submarginal cells, 1st equal in length to 2nd and 3rd combined, distal veins (1rs-m, 2rs-m, 2m-cu and distal abscissae of M) weak, marginal cell pointed on anterior margin of wing (Fig. 5B); dorsolateral angle of pronotum triangle, right-angle shaped apically (Fig. 4D), pronotum strongly convex toward to the dorsum (Fig. 4G); propodeal dorsum as long as scutellum, nearly flat, with very fine striae not reaching posterior margin of propodeal dorsum (Fig. 4E); lateral slope of propodeum smooth, without fine striae (Fig. 4E), posterior vertical surface of propodeum carinate along lateral margin, but the carina ill-developed, only up to 2/3 of the lateral margin, lateral carina and transverse carina absent (Fig. 4E); hind basitibial plate present, enclosed by carina; inner hind tibial spur pectinate with two large teeth (Fig. 4H). Clypeus nearly polished, only with a few scattered punctures (Fig. 4C); supraclypeal area very sparsely punctate, i=3–5d (Fig. 4C); paraocular area and frons very densely and finely punctate, i=0.2–1.0d (Fig. 4C); vertex very sparsely punctate, i=5–6d (Fig. 4A); scutellum sparsely punctate, i=1–3d (Fig. 4D); T 1 polished, without punctures (Fig. 4F). Head, mesosoma with blue-green metallic reflections, metasomal terga dull reddish-brown, without metallic reflections (Figs 4F, 5A); mandible dull reddish-brown (Fig. 4C); antenna blackishbrown except flagellum with ventral surface lighter, brown (Fig. 4A); forewing subhyaline with brownish-yellow veins and stigma except R vein brown (Fig. 5B); legs dark brown (Figs 4H, 5A). Clypeus, lower part of paraocular area, vertex, and mesosoma covered sparse dirty-yellowish pubescence. T 2– T 3 with basal whitish tomentum (Fig. 4F). Hind femur and tibia with yellowish plumose hairs forming the scopa (Fig. 4H).</p> <p>Male. Unknown.</p> <p>Distribution. China (Sichuan).</p> <p>Floral association. No information.</p> <p> <b>Funding</b> This work was financially supported mainly by the National Natural Science Foundation of China (31772487) to Zeqing Niu, the grant (Y229YX5105) from Key Laboratory of Zoological Systematics and Evolution, Chinese Academy of Sciences. Chaodong Zhu acknowledges the supports of the National Science Fund for Distinguished Young Scholars (31625024) and Singapore-China Joint Research Grant (41761144068).</p> <p> <b>Acknowledgements</b> The authors would like to express their sincere thanks to Dr. Alain Pauly for his assistance in identification of <i>Lasioglossum longirostre</i>, also to Dr. Jason Gibbs, and two anonymous reviewers for their comments and suggestions to streamline and improve the earlier drafts of the manuscript.</p>Published as part of <i>Niu, Zeqing, Zhang, Dan & Zhu, Chaodong, 2020, Extraordinary bees of the genus Lasioglossum Curtis, 1833 (Hymenoptera: Apoidea: Halictidae) from China, pp. 50-58 in Zoological Systematics 45 (1)</i> on pages 54-56, DOI: 10.11865/zs.202005, <a href="http://zenodo.org/record/4617914">http://zenodo.org/record/4617914</a>
Simple dynamics in non-monotone Kolmogorov systems
No full textThe work of L. Niu was supported by the National Natural Science Foundation of China (NSFC) under Grant No. 12001096 and the Fundamental Research Funds for the Central Universities (No. 2232021G-13)
Comments on some misconceptions in igneous and experimental petrology and methodology: A reply
No full textrate ’ of cpx and opx. Isobaric melting experiments show INTRODUCTION a> b, but the abyssal peridotite data suggest b> a, i.e. I recently showed (Niu, 1997) that proportions of residual opx would contribute more than cpx to the melt during minerals in abyssal peridotites (e.g. Dick, 1989; Johnson melting beneath ocean ridges. As abyssal peridotites et al., 1990; Johnson & Dick, 1992) exhibit systematic are apparently metamorphosed and deformed under variations with whole-rock MgO content. I also showed subsolidus conditions (e.g. Niu, 1997; Niu et al., 1997
Siobla longipennis Niu & Wei, sp. nov.
No full textSiobla longipennis Niu & Wei, sp. nov. (Figs 3 i, 7 c, 9 a, 13 d, 21 j–l) urn:lsid:zoobank.org:act: 62351575 - 7 C 4 F- 45 A 3-8108 -F 4 B 772346 D 5 E Description. Holotype: Ƥ. Length, 8.5 mm (Figs 3 i, 7 c). Body metallic blue, labrum dark brown; basal half of left 6 th antennomere white dorsally, 7 th to 9 th left antennomeres and 6 th to 9 th right antennomeres lost; most of anterior of fore femur, anterior of fore tibia, and entire fore tarsus pale brown; most of middle tarsus dark brown. Wings infuscated hyaline, apices weak smoky, cell C dark brown.Hairs on dorsum of head brown; hairs on thorax pale. Punctures on head dense, temple sparsely punctured, interspaces shiny, wider than diameter of punctures; interspaces of punctures on postocellar area and postorbit narrower than diameter of punctures (Fig. 21 j); punctures on thorax dense, posterior of prescutum and middle of scutum sparsely punctured, shiny; anterior slope of mesoscutellum sparsely punctured, interspaces shiny, lateral and posterior slope densely punctured, mat; metascutellum densely punctured, interspaces narrow, posttergite shiny without punctures; punctures on upper half of mesepisternum dense and large, punctures on venter sparse; mesepimeron microsculptured, upper margin with large punctures; metepisternum shiny; punctures on dorsum of metepimeron large, posterior shiny; 1 st abdominal tergite shiny except lateral sides feebly microsculptured, other tergites microsculptured. Body short, forewing 1.3 × body length; hairs on dorsum of head curved, 2 × transverse diameter of median ocellus. Anterior margin of clypeus truncate; malar space 0.8 × transverse diameter of median ocellus; lower interocular distance equal to eye height; anterior margin of supraantennal tubercle elevated, posterior confluent with frontal ridge; middle fovea broad furrow like, lateral fovea deep; interocellar furrow broad and deep, postocellar furrow shallow and deep; postocellar area slightly elevated, lower than top of ocelli (Fig. 21 k), without middle carina, about 1.3 × as broad as long; lateral furrows straight, deep and broad, parallel posteriorly; head behind eyes 0.6 × eyes in length in dorsal view, convex at base and narrowing posteriorly. Mesoscutellum roundly elevated (Fig. 21 l), anterior slope longer than posterior slope, without middle carina; ventral thorn absent. Apex of hind tibia distinctly enlarged; metabasitarsus 4.6 × as long as broad, 0.9 × length of remaining 4 tarsomeres combined; hind inner tibial spur 0.5 × length of metabasitarsus. Hind wing with petiole of anal cell equal to 0.3 × cu-a in length. Ovipositor sheath as long as length of middle tibia; lancet as in Fig. 9 a; apical and 6 th to 8 th serrulae as in Fig. 13 d. Male: Unknown. Etymology. The specific epithet refers to the long wings comparing with the shortened body. Specimens examined. Holotype: Ƥ, Jieyindian, Mt. Emei, Sichuan, 29 ° 52.42´N, 103 ° 34.03´E, alt. 2045 m, 11 June 2007, Liu Fei leg., CSCSHT 0 0 810038 (CSCS). Distribution. China (Sichuan). Remarks. The new species is similar to S. sinica, but differs from the latter by the following: body with metallic blue luster, without green luster; wings 1.3 × body length; mesoscutellum roundly elevated; malar space shorter than transverse diameter of median ocellus; the apices of wings feebly infuscated. In S. sinica: body with metallic bluish green luster; wings as long as body; mesoscutellum strongly elevated with a peak; malar space equal to transverse diameter of median ocellus; the apices of wings distinctly infuscated.Published as part of Niu, Gengyun, Wei, Meicai & Taeger, Andreas, 2012, Revision of the Siobla metallica group (Hymenoptera: Tenthredinidae), pp. 1-49 in Zootaxa 3196 on page 12, DOI: 10.5281/zenodo.28010
Erythrocyte antigens in the current NIU Phasianus colchicus colony
No full textThis thesis assessed erythrocyte antigens segregating in the current NIU ringnecked pheasant, Phasianus colchicus (Phco), colony. Recently a minimum of 14 Phco- B haplotypes were delineated in the closed NIU pheasant colony. Alloimmunizations within pheasant families were designed to maintain and expand on the pheasant B-system data. It is possible that past and present antisera detected nine Phco-B haplotypes that corresponded to those previously designated, except la. One antiserum, in particular, specifically detected the B2 antigen in the NIU chicken colony and the B21 antigen o f chickens derived from the Heisdorf Nelsen stock. Evidence is presented that supports the possibility o f non-MHC systems segregating in the current N IU pheasant colony. Alloimmunizations within pheasant families detected a minimum o f four haplotypes segregating together in a system designated as X. In addition, chicken anti-chicken antisera specific for antigens of the chicken A and C blood group systems were selectively absorbed with pheasant erythrocytes. The segregation of these antigens in subsequent generations o f pheasants suggests a pattern o f alternate segregation of antigens produced by alleles at two separate loci. Thus, in the pheasant there appear to be three non-MHC alloantigen systems. Finally, antisera produced in Ancona chickens by donor chicken-pheasant hybrids lend further evidence to the existence of multiple non-MHC blood groups segregating in the current NIU Phasianus colchicus colony
Siobla jiangi Niu & Wei, sp. nov.
No full textSiobla jiangi Niu & Wei, sp. nov. (Figs 2 a, 2 b, 4 i, 4 j, 8g –i, 8m, 9m, 9 z, 10 k, 10 l) Description. Holotype: ♀. Length, 13.5 mm (Figs 2 a, 4 i). Black, palpi, middle of labrum, spot on dorsum of 1 st antennomere, anterior margin of 2 nd antennomere, posterior margin of pronotum (greatest width 0.9 × length of lateral ocellus), spot on anterior of tegula, and spot on middle of mesepimeron pale brown, 2 nd and 3 rd abdominal tergites entirely, and anterior half of 4 th tergite, 2 nd to 4 th sternites entirely yellowish brown, middle of lateral edges of 8 th tergite, most of 10 th tergite, cerci, and posterior margin of sheath pale brown; legs yellowish brown with following black: fore and middle coxae entirely, most of hind coxa, most of fore and of middle trochanters, venter of basal half of fore and of middle femurs, and apical half of hind femur; hairs on dorsum of body pale brown, hairs on pleuron silver; wings uniformly infuscated, pterostigma, vein C, anterior side of vein Sc+R, vein R 1 entirely and base of vein A pale brown, other veins black brown. Head densely punctured, middle of temple and of postocellar area with visible interspaces, narrower than diameter of punctures, microsculptured; clypeus punctured with narrow interspaces, labrum sparsely punctured; prescutum and scutum densely punctured, interspaces narrow, microsculptured; anterior slop of mesoscutellum densely punctured, posterior slope densely and coarsely punctured, without interspaces; posttergite shiny; parapsides with large and sparse punctures and dense microsculpture; metascutellum with anterior slope shiny and posterior slop densely punctured; metapostnotum shiny with margins slightly microsculptured; middle and upper of mesepisternum densely and coarsely punctured, venter with large and shiny interspaces between small and sparse punctures; ventral anterior corner of mesepisternum with a distinct shiny patch; anepimeron coarsely punctured, katepimeron microsculptured, posterior shiny; upper metepisternum densely punctured, mat, and venter sparsely punctured, shiny; basin of metepimeron shiny, margin of basin microsculptured, dorsum of metepimeron with large punctures and posterior corner shiny. First abdominal tergite shiny without microsculpture, lateral edges hardly punctured; 2 nd tergite weakly microsculptured, other tergites microsculptured, 4 th to 8 th tergites punctured. Hairs on dorsum of head straight, as long as diameter of lateral ocelli. Clypeus flat, anterior margin truncate; malar space as long as transverse diameter of median ocellus; shortest distance between eyes below antennal sockets in front view nearly as long as eye height; middle fovea broad and deep; interocellar furrow deep, postocellar furrow broad and shallow; postocellar area 1.8 × as broad as long, weakly elevated with an obtuse carina; lateral furrows deep, curved, divergent posteriorly; head behind eyes 0.8 × length of eye in dorsal view; curved laterally and then convergent posteriorly; genal carina sharp, complete (Fig. 8 g). Antenna as long as head, thorax and 1 st abdominal tergite together, slightly shorter than vein C, 2 nd antennomere 1.3 × as long as broad, relative length of 3 rd to 4 th antennomeres as 1.5, 5 th to 8 th antennomeres weakly compressed, inner and outer sides of 5 th to 8 th antennomeres with weak furrows, 7 th antennomere 2 × as long as broad. Middle furrow of prescutum shallow (Fig. 8 m); mesoscutellum elevated, hardly higher than scutum. Metabasitarsus 5.3 × as long as broad, about 1.2 × length of following 3 tarsomeres combined, hind inner tibial spur 0.5 × length of metabasitarsus. Pulvilli of hind tarsus weakly developed, 1 st pulvillus 0.5 × basal breadth and 0.3 × apical breadth of metabasitarsus, distance between basal two pulvilli 2 × length of 2 nd pulvillus. Ovipositor sheath as long as hind femur, and 1.1 × length of middle tibia in lateral view, exposed part of apical sheath about 1.4 × as long as broad, apical sheath 1.5 × as long as basal sheath. Lancet with 22 serrulae, (Fig. 9 m), middle serrulae each with 6–8 distal fine teeth (Fig. 9 z). Male. Length, 11.5 mm (Figs 2 b, 4 j). Similar to female in structure and color, but entire 3 rd abdominal tergite, most of 4 th tergite, and most of 6 th sternite yellowish brown, 7 th to 9 th sternites entirely black, pale posterior margin of pronotum nearly absent, antenna and tegula entirely black, mesepimeron without pale spot, apical 0.2 of hind tibia black; malar space line linear, 0.2 × transverse diameter of median ocellus (Fig. 8 i); head in front view with lower interocular distance 0.8 × eye height; head behind eyes 0.5 × eyes in length in dorsal view, narrowing posteriorly; hairs on dorsum of head 1.2 × lateral ocelli (Fig. 8 h); genitalia as in Figs 10 k, 10 l. Variation. The inner side of the apex of hind tibia is sometimes with a black spot. Etymology. This species is named after the surname of Dr. Jiang Jigang. He collected many valuable sawfly specimens from Mt. Shennongjia, Hubei, China. Specimens examined. 8 ♀, 27 ♂. Hubei: Holotype: 1 ♀, Qianjiaping, Shennongjia, E. 110 º 24.023´, N. 31 º 24.356´, 1789m, 2009 -VII- 4, Zhao Fu leg CSCSHT 0 0 810021 (CSCS); Paratypes: 1 ♀ 2 ♂, Yaolangou, Shennongjia, E. 110 º 22.878´, N. 31 º 29.104´, 1430m, 2009 -VII- 13, Zhao Fu leg.; 3 ♂, Yinyuhe, Shennongjia, E. 110 º 18.799´, N. 31 º 29.821´, 2046m, 2008 -VII- 29, Zhao Fu leg.; 4 ♀ 11 ♂, Qianjiaping, Shennongjia, E. 110 º 24.023´, N. 31 º 24.356´, 1789m, 2009 -VII- 3–7, Zhao Fu and Jiao Zhao leg.; 10 ♂, Zhangbaohe, Shennongjia, E. 110 º 24.570´, N. 31 º 26.765´, 1156m, 2009 -VI- 12–13, Zhao Fu leg.; 1 ♀, Shennongjia, 1985 -VI- 24, Mao Xiaoyuan leg.; 1 ♂, Yaozikou, Shennongjia, Yichang, E. 110 º 20.986 ′, N. 31 º 30.104 ′, 1920m, 2011. VII. 21, Wei Meicai & Niu Gengyun leg.; CSCS-Hym-M00680; 1 ♀ 1 ♂, Qianjiaping, Shennongjia, E. 110 º 24.023´, N. 31 º 24.356´, 1789m, 2009 -VII- 4–6, Zhao Fu and Jiao Zhao leg. (USNM). Distribution. China (Hubei). Remarks. This new species is similar to S. zuoae, but differs from it in the forewings distinctly infuscate; tegula and the base of fore and middle femora black; the abdominal tergite 4 largely yellow brown; the metepimeron with a central pale brown spot; the interspaces between punctures on mesonotum distinctly narrower than diameter of a puncture; the ovipositor sheath as long as hind femur; lancet very long and slender with 21 serrulae, the middle serrulae each with 5–6 distal teeth; the valviceps of penis valve broad and elliptical. The lancet of this new species is distinctly longer than other species in this group (Fig 9 l).Published as part of Niu, Gengyun & Wei, Meicai, 2013, Revision of the Siobla formosana group (Hymenoptera: Tenthredinidae), pp. 41-68 in Zootaxa 3746 (1) on pages 48-49, DOI: 10.11646/zootaxa.3746.1.2, http://zenodo.org/record/28530
Siobla bomeica Niu & Wei, sp. nov.
No full textSiobla bomeica Niu & Wei, sp. nov. (Figs 3 f, 6 e, 8 a, 12 a, 19 j–l) urn:lsid:zoobank.org:act: 4 E 6480 A 4-18 AD- 4855-9382 -AA 8 A 89 B 8 CF 4 A Description. Holotype: Ƥ. Length, 13 mm (Figs 3 f, 6 e). Body metallic blue; labrum blackish brown; 6 th to 8 th antennomeres and basal half of 9 th antennomere yellowish white; fore leg with apical half of femur anteriorly, anterior of tibia, inner tibial spur and base of basitarsus pale brown. Wings hyaline and slightly infuscated at apices, cell C brown except base and apex blackish brown, stigma and veins blackish brown; hairs on dorsum of head dark brown, hairs on dorsum of thorax dark brown except hairs on anterior margin pale, hairs on pleuron pale. Clypeus, frons, postocellar area and postorbit densely punctured, inner orbit and most of temple sparsely punctured, with large shiny patch (Fig. 19 j); scutum densely punctured, interspaces narrow, mesoscutellum coarsely and densely punctured, posttergite microsculptured; upper half of mesepisternum densely punctured and microsculptured, without shiny interspaces, lower half with sparse and large punctures; mesepimeron densely microsculptured except upper margin coarsely and densely punctured; dorsum of metepisternum densely punctured and microsculptured, other parts shiny; middle and posterior of metepimeron shiny, dorsum of metepimeron coarsely and densely punctured; 1 st abdominal tergite shiny, other tergites densely microsculptured. Hairs on frons and postorbit straight, slightly longer than transverse diameter of median ocellus; hairs on postocellar area straight, equal to transverse diameter of median ocellus; hairs on mesepisternum curved, longer than transverse diameter of median ocellus; hairs on mesoscutellum shorter than transverse diameter of median ocellus. Anterior margin of clypeus truncate; malar space 1.2 × transverse diameter of median ocellus; head in front view with eyes converging below, lower interocular distance 1.3 × eye height; anterior margin of supraantennal tubercle elevated, posterior confluent with frontal ridge; middle fovea round and broad, lateral fovea deep; interocellar and postocellar furrows shallow; postocellar area flat, lower than top of ocelli (Fig. 19 k), without middle carina, about 1.7 × as broad as long; lateral furrows deep, slightly curved outwards, parallel posteriorly; head behind eyes equal to eyes in length in dorsal view, convex at base and narrowing posteriorly. Antenna subequal to abdomen and 1.2 × head and thorax combined in length. Mesoscutellum acutely pyramidally elevated (Fig. 19 l), anterior slope flat, longer than posterior slope; posttergite with an obtuse middle carina; metascutellum with a distinct middle carina; mesepisternum angularly elevated, ventral spur faint. Apex of hind tibia distinctly enlarged; metabasitarsus 4.4 × as long as broad, 0.8 × length of remaining 4 tarsomeres combined; hind inner tibial spur 0.4 × length of metabasitarsus. Hind wing with petiole of anal cell shorter than half length of cu-a. Ovipositor sheath 0.9 × length of middle tibia, apical sheath and basal sheath subequal in length; lancet as in Fig. 8 a, apical and 4 th to 6 th serrulae as in Fig. 12 a. Male: Unknown. Variation. No variation is found in the type specimens. Etymology. The name is from the locality of holotype and is a noun. Specimens examined. Holotype: Ƥ, 24 k, Bomê, Tibet, 29 ° 48.287´N, 95 ° 41.914´E, alt. 3563 m, 21 June 2009, Wei Meicai leg., CSCSHT 0 0 810031 (CSCS). Paratypes: Tibet: 1 Ƥ, 24 k, Bomê, Tibet, 29 ° 48.380´N, 95 ° 41.956´E, alt. 3522 m, 21 June 2009, Li Zejian leg.; 1 Ƥ, 24 k, Cibagou, Zayü, Tibet, 28 ° 53.816´N, 97 ° 27.771´E, alt. 2697 m, 23 June 2009, Niu Gengyun leg. Distribution. China (Tibet). Remarks. The new species is similar to S. sinica, but differs from the latter by the following: postocellar area flat; upper half of the inner orbit shiny; anterior and posterior slopes of the mesoscutellum flat, anterior slope densely punctured; posttergite microsculptured; metascutellum with a sharp middle longitudinal carina; apex of the forewing weakly infuscated, cell C brown; ovipositor sheath shorter than middle tibia; apical sheath as long as basal sheath; lancet sclerotized with serrulae protruding. On the road from Bomê to Mêdog, there are many places named by digits, like 24 k, 52 k, and 80 k. These names reflect their position at different distances from the start of Bomê.Published as part of Niu, Gengyun, Wei, Meicai & Taeger, Andreas, 2012, Revision of the Siobla metallica group (Hymenoptera: Tenthredinidae), pp. 1-49 in Zootaxa 3196 on pages 4-5, DOI: 10.5281/zenodo.28010
Colochela nigrata Wei & Niu, sp. nov.
No full textColochela nigrata Wei & Niu, sp. nov. (Figs 1 a–b, 2 a, d, g, j, m, 3 e, h, 4 a, d, g, j, k, 5 a, d, e, j–l) urn: lsid:zoobank.org:act: 34 DA 4 F 27 - 2 B00- 4 F 77 - 9 F 34 -C 4 E 1 B 5 FFB 0E0 Description. Holotype: ♀. Length 14.5 mm (Fig. 1 a). Body black, body hairs black brown entirely. Wings strongly and evenly infuscate, vein R 1 largely brown, pterostigma and other veins black; hind wing slightly paler than forewing. Clypeus densely punctured except for narrow anterior margin, interspaces between punctures very narrow and smooth, hardly microsculptured; inner orbit, temple and postocellar area minutely and densely punctured, interspaces smooth, weakly shiny; punctures on frons extreme dense and fine, interspaces microsculptured; malar space densely microsculptured; punctures on hind orbit sparse and shallow; punctures on pronotum, mesoscutal middle lobe and lateral lobe, mesoscutellum, upper part of mesopleuron and metapleuron entirely much denser than punctures on head, interspaces hardly recognizable, almost mat; punctures on ventral part of mesepisternum gradually sparser and larger, interspaces hardly microsculptured, weakly shiny; punctures on mesoscutellar appendage sparse and large, surface smooth, shiny; metascutellum sparsely punctured, shiny; abdominal tergites 1– 10 densely and minutely punctured, interspaces strongly microsculptured, matt; narrow intertergites smooth, strongly shiny. Hairs on dorsum of head and mesopleuron about 0.6 times as long as diameter of median ocellus; hairs on mesonotum extreme dense and about 0.4 times as long as diameter of median ocellus; abdominal tergites densely pubescent, extremely short, about 0.2 times as long as diameter of median ocellus; mesoscutellar appendage and intertergites of abdomen glabrous. Anterior margin of clypeus weakly incised, almost truncate; malar space 0.3 times as long as diameter of median ocellus; distance between eyes at level of anterior tentorial pits as long as longest axis of eye (Fig. 2 d); middle fovea small, round and deep, closed; frons flat, frontal ridge indistinct; POL: OOL: OCL = 13: 20: 22; interocellar furrow deep and broad, postocellar furrow shallow, weakly bent forward; postocellar area roundly elevated, about 1.5 times as broad as long; lateral furrow narrow and deep, weakly curved, hardly divergent backward; head slightly narrowed behind eyes in dorsal view (Fig. 2 a). Antenna 0.8 times as long as head and thorax together, distinctly incrassated beyond middle, 5 th – 9 th antennomeres with indistinct longitudinal furrow in both sides, third antennomere as long as following two antennomeres together, seventh antennomere about 1.5 times as long as broad (Fig. 3 e). Mesoscutellar appendage flat, with a distinct middle carina; cenchrus roundish, slightly broader than long, CD = 2. Venation as Fig. 1 a, basal anal cross vein present; petiole of hind anal cell about 0.3 times length of cu-a. Ovipositor sheath 1.5 times as long as front tibia, apical sheath as long as basal sheath, tapering toward apex (Fig. 2 m); sheath and setae in dorsal view as Fig. 2 j, sheath clearly tapering toward apex, about 2 times as broad as breadth of cercus; cercus small, about 2 times as long as broad. Lancet as Fig. 4 a, with about 27 serrulae, apical segment of lancet as Fig. 4 d, middle segments of lancet as Fig. 4 g, annular spines short and sparse, surface sculpture of lancet as Figs 4 j, k. Male. Body length 13.5 mm (Fig. 1 b); color, punctation and structure similar to female except for following: malar space 0.2 times as long as diameter of median ocellus (Fig. 2 g); distance between eyes at level of anterior tentorial pits about 0.9 times as long as longest axis of eye; head distinctly narrowed behind eyes in dorsal view; subgenital plate broader than long, apical margin round; harpes almost as long as broad (Fig. 5 a); volsella and gonolacinia as Figs 5 d–e; penis valve as Figs 5 j–l. Variation. The head of one female collected from Shaanxi Province is without lateral furrows. Etymology. The specific epithet refers to the entirely black body of the new species. Types: Holotype. ♀, CHINA: ANHUI: Lu’an, Central Forest Park, 75m, 1 ♀, 28.iv. 2015, Genbank accession number KT 833356 (CSCS). Paratypes: No data, 1 ♂, (CSCS); HUBEI: Baoji'an [Wuchang], 11.iv. 1954; SHAANXI: Xixiang, 560m, 1 ♀, 2.v. 1988 (CSCS); CHONGQING: 1 ♀, 20.vi. 1997, Wei Meicai (CSCS); ZHEJIANG: 1 ♂, 6.v. 1992, Wu Hong (CSCS). Other material examined. CHINA: Guangxi: Yangshuo, 1 ♀, 3.iv. 1938 (IZAS). Distribution. China (Shaanxi, Anhui, Hubei, Zhejiang, Chongqing, Guangxi) (Fig. 6). Remarks. See the above key for the differences between C. nigrata and the other two species of the genus. As to the specimen collected from Shaanxi that has the lateral furrows absent, no other distinct difference could be found between the specimen and others.Published as part of Niu, Gengyun & Wei, Meicai, 2016, Revision of Colochela (Hymenoptera, Tenthredinidae), pp. 457-470 in Zootaxa 4127 (3) on pages 460-461, DOI: 10.11646/zootaxa.4127.3.3, http://zenodo.org/record/25964
Siobla caerulea Niu & Wei, sp. nov.
No full textSiobla caerulea Niu & Wei, sp. nov. (Figs 4 e, 4 f, 7 f, 7g, 8 e, 12 d, 14 l, 15 l, 22 c, 22 d) urn:lsid:zoobank.org:act: 8 C 4472 B 5 -E 779 - 469 C- 80 FE- 5 C 6351 E 761 C 9 Description. Holotype: Ƥ. Length, 16 mm (Figs 4 e, 7 f). Body with feeble metallic blue luster; palpi dark brown, labrum and mandible except apex, apical four antennomeres, apical margin of coxa, trochanter, femur, tibia and tarsi of each leg, and apex of sheath orange brown, tegula pale brown. Apical 1 / 4 of forewing strongly infuscated, stigma pale brown, hind wing subinfuscated hyaline. Hairs on dorsum of head pale brown, hairs on thorax pale. Punctures on clypeus, inner orbit and postocellar area dense, punctures on temple, upper of post orbit and lateral sides of prescutum sparse, interspaces 2–3 × diameter of punctures (Fig. 22 c); scutum, mesoscutellum and metascutellum densely punctured, mesepisternum densely and coarsely punctured with venter densely punctured, mesepimeron densely microsculptured with dorsum densely punctured; metepisternum shiny, posterior margin of metepimeron shiny, dorsum of metepimeron densely punctured; 1 st abdominal tergite shiny, anterior and lateral sides microsculptured with fine punctures, other tergites with transverse microsculpture. Hairs on dorsum of head straight, slightly shorter than diameter of median ocellus; hairs on mesoscutellum as long as diameter of median ocellus; hairs on other parts of scutum obviously shorter than diameter of median ocellus; hairs on pleuron slightly shorter than diameter of median ocellus. Clypeus truncate; malar space 0.8 × transverse diameter of median ocellus; head in front view with eyes converging below, lower interocular distance as long as eye height; anterior margin of supraantennal tubercle elevated, frontal ridge fine; middle fovea round, lateral fovea deep; interocellar and postocellar furrows obvious; postocellar area about 1.3 × as broad as long, elevated, as high as top of ocelli, longitudinal carina obtuse; lateral furrows broad and deep, slightly curved outwards, slightly divergent posteriorly; head behind eyes 0.8 × eyes in length in dorsal view, convex in middle and narrowing posteriorly. Antenna 0.9 × abdomen and 1.2 × combined length of head and thorax. Mesoscutellum slightly elevated; posttergite with an obtuse middle carina; mesepisternum angularly elevated, ventral spur faint. Apex of hind tibia distinctly enlarged; metabasitarsus 5 × as long as broad, 0.9 × length of remaining 4 tarsomeres combined; hind inner tibial spur 0.4 × length of metabasitarsus. Hind wing with petiole of anal cell shorter than half length of cu-a. Ovipositor sheath as long as middle tibia, apical sheath and basal sheath subequal in length; lancet as in Fig. 8 e; apical and 4 th to 7 th serrulae as in Fig. 12 e. Male: Length, 13–14 mm (Figs 4 f, 7g). Similar to female in structure and color, but labrum reddish brown, bases of trochanters and apices of coxae of fore and middle legs brown; punctures on temple and upper of post orbit denser (Fig. 22 d), anterior 3 / 4 of 1 st abdominal tergite microsculptured; malar space 0.4 × transverse diameter of median ocellus; head in front view with lower interocular distance 0.8 × eye height; head behind eyes distinctly narrowing posteriorly; subgenital plate as long as broad, apex round, genitalia as in Figs 14 l, 15 l. Variation. One female length 13mm; in some female specimens, the base of mandible brown or the anterior margin of tegula yellowish white; the fore and middle trochanters pale brown in one male. Etymology. This specific epithet is an adjective, which refers to the dark blue body color. Specimens examined. Holotype: Ƥ, Hualanggu, Mt. Zu, Qinhuangdao, (Hebei, China), 40 °08.513ʹN, 119 ° 25.755 ʹE, alt. 957 m, 12 July 2007, Li Zejian leg., CSCSHT 0 0 810033 (CSCS). Paratypes: Hebei: 2 Ƥ 13, Ximenkou, Mt. Wulin, Hebei, 40 ° 36.089 ʹN, 117 ° 25.937 ʹE, alt. 832 m, 16 June. 2007, Li Zejian leg.; 13, Binguan, Mt. Zu, Qinhuangdao, 40 °08.663ʹN, 119 ° 25.322 ʹE, alt. 1080 m, 16 June 2007, Li Zejian leg.; 2 Ƥ, same data as the holotype; 13, Tiannvfeng, Mt. Zu, Qinhuangdao, 40 °07.216ʹN, 119 ° 25.506 ʹE, alt. 1428 m, 11 July 2007, Li Zejian leg.; 1 Ƥ 13, Wurenling, Mt. Zu, Qinhuangdao, 40 °07.831ʹN, 119 ° 25.456 ʹE, alt. 1266 m, 12 July 2007, Li Zejian leg.; Tianjin: 1 Ƥ, Longwangmiao, Baxianshan, Tianjin, 40 ° 11.211 ʹN, 117 ° 33.164 ʹE, alt. 428 m, 21 June 2007, Li Zejian leg.; Beijing: 1 Ƥ, Xiaolongmen, Beijing, alt. 1350 m, 29 June 1986, NAN Song; 1 Ƥ, Cheumen, 6 May 1919 (TMNH). Distribution. China (Hebei, Beijing, Tianjin). Remarks. This species is allied to S. zenaida. See the above key for the differences between the two species.Published as part of Niu, Gengyun, Wei, Meicai & Taeger, Andreas, 2012, Revision of the Siobla metallica group (Hymenoptera: Tenthredinidae), pp. 1-49 in Zootaxa 3196 on pages 6-7, DOI: 10.5281/zenodo.28010
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