44,869 research outputs found
Nanoimprint lithography for planar chiral photonic meta-materials
No full textRoom temperature nanoimprint lithography has successfully been applied to the fabrication of planar chiral photonic meta-materials. For dielectric chiral structures a single layer of thick HSQ was used while for metallic chiral structures a bi-layer technique using PMMA/hydrogen silsequioxane (HSQ) was applied. The polarization conversion capabilities of planar chiral structures imprinted in dielectric materials have experimentally been observed. This indicates that the developed processes in this work have the prospect of manufacturing planar photonic meta media in high volume at low cost
Stegana (Steganina) bimai Cui & Chen, sp. nov.
No full textStegana (Steganina) bimai Cui & Chen, sp. nov. (Figs. 6E, 6F, 29) Diagnosis. This species closely resembles S. (S.) clavispinula Chen & Chen, 2009 in the shape of epandrium, surstylus, cercus (as figs. 1, 2 in Chen & Chen 2009, Fig. 29A, B), and aedeagal sheath in ventral view (as fig. 6 in Chen & Chen 2009, Fig. 29E), but can be distinguished from the latter by having the surstylus with 1 peg-like tooth near distal margin (Fig. 29B); the aedeagus expanded distally in ventral view (Fig. 29D), lacking serrated process in median process (Fig. 29C, D); the subepandrial sclerite slightly X-shaped (Fig. 29G). Description. Male and female: First flagellomere brown. Clypeus yellow. Mesonotum brown medially, yellow laterally (Fig. 6E). Scutellum brown, yellow along margin (Fig. 6E). Katepisternum yellowish (Fig. 6F). Halter mostly grey (Fig. 6F). Fore femur with 3 thin, long setae on distal part of posteroventral surface. Abdominal tergites brown (Fig. 6E, F); sternites brownish, about 2 times as wide as long in male, about 3 times as wide as long in female. Male terminalia (Fig. 29): Epandrium with ca. 15 setae on dorsal to posterior portions per side (Fig. 29A). Surstylus slightly squared, with minute, serrated processes distally and several setulae near distal margin (Fig. 29A, B). Cercus lacking pubescence (Fig. 29A). Hypandrium expanded anteromedially (Fig. 29C, D). Pregonite small, with 3 sensilla (Fig. 29C, D). Aedeagus with some pubescence distoventrally (Fig. 29C). Aedeagal sheath with several minute, serrated processes distally (Fig. 29E, F). Measurements and indices. BL = 2.63 mm in holotype (2.52–2.61 in 2♂, 2.48–2.65 in 2♀ paratypes), ThL = 1.31 mm (1.31–1.34 in ♂, 1.26–1.28 in ♀), WL = 2.32 mm (2.28–2.51 in ♂, 2.31–2.61 in ♀), WW = 1.00 mm (0.97–1.01 in ♂, 0.95–1.08 in ♀), arb = 6/4 (7/4–5), avd = 0.65 (0.84–0.93), adf = 1.12 (1.08–1.20), flw = 2.12 (1.87–2.39), FW/HW = 0.40 (0.36–0.44), ch/o = 0.26 (0.24–0.27), prorb = 0.68 (0.87–1.07), rcorb = 0.71 (0.60– 0.71), vb = 0.60 (0.61–0.89), dcl = damaged (0.55–0.72), presctl = damaged (0.46–0.66), sctl = 2.19 (2.17–2.89), sterno = 0.39 (0.47–0.93), orbito = 1.80 (1.80–1.98), dcp = 0.30 (0.28–0.36), sctlp = 1.78 (1.50–1.73), C = 1.67 (1.72–1.98), 4c = 1.17 (1.22–1.28), 4v = 1.83 (1.88–2.19), 5x = 1.81 (1.44–1.86), ac = 15.17 (9.00–13.14), M = 0.74 (0.61–0.71), C3F = 0.55 (0.60–0.64). Type materials. Holotype ♂ (SCAU, No. 125744, DNA #2706), CHINA: Muyiji Park, Ximeng, Yunnan, 22°37'23''N, 99°36'11''E, alt. 1100m, 16.iv.2018, ex tree trunk, L. Zhu. Paratypes: 2♀ (SCAU, Nos. 125745, 46), other data same as holotype; 2♂ (SCAU, Nos. 125747, 48, DNA #2727), Menglun, Mengla, Yunnan, 21°47'29''N, 101°22'59''E, alt. 860m, 24.xii.2003, ex tree trunk, H.W. Chen. Distribution. China (Yunnan). Etymology. From the word " bimai " in Dai language from the Dai nationality living in Yunnan, China, referring to the Water-Sprinkling Festival (new year).Published as part of WANG, YA-LIAN, LI, BING-XUE, CUI, MENG-DI, ZHANG, YUAN, WANG, LE, ZHANG, CAI-HONG, TSAUR, SHUN-CHERN, CHEN, HONG-WEI & HUANG, JIA, 2023, Revision of the subgenus Stegana (Steganina) from China, with assessment of species delimitation using DNA barcodes (Diptera, Drosophilidae), pp. 1-109 in Zootaxa 5250 (1) on pages 57-59, DOI: 10.11646/zootaxa.5250.1.1, http://zenodo.org/record/770565
Pre-Ceremony - Xi Chen and Lu Cui
No full textGraduates Xi Chen and Lu Cui before the ceremony.https://scholarship.kentlaw.iit.edu/commencement_2014/1054/thumbnail.jp
Macroteratura (Macroteratura) inospina Chen, Cui & Chang 2020, sp. nov.
No full text1. Macroteratura (Macroteratura) inospina Chen, Cui & Chang sp. nov. (Fig. 1) Description. Male. Body small, medium sized for the tribe Meconematini. Fastigium verticis conical, apex bluntly rounded, with a median sulcus. Face is slightly sloping backwards. Apical segment of maxillary palpus equal to subapical one in length, slightly swollen apically. Eyes ovoid and distinctly protruding outward. Anterior margin of pronotum nearly straight, posterior margin triangularly rounded; anterior part narrower while posterior part of pronotum wider in dorsal view; lateral lobes longer than deep, humeral sinus indistinct. Thoracic foramen exposed, ovoid. All femora without spines on ventral surface. Procoxa with a spine, protibia with 6–7 long spines on internal and external margins of ventral surface separately; tibial tympana open on both sides, oval. Mesotibia with 6–7 long spines on internal and external margins of ventral surface separately. Posttibia with 27–29 spines on internal and external margins of dorsal surface separately, with 8 outer and 2 inner spines on ventral surface, bearing 1 pair of dorsal apical spurs and 2 pairs of ventral apical spurs. Tegmina elongate, anterior and posterior margins nearly parallel, distinctly surpassing apices of postfemora, apices rounded. Hind wings longer than tegmina. Posterior margin of tenth abdominal tergite with a pair of generally symmetrical and long posterior processes, lamellate, narrow and thin; inner margin of subapical area with 1 spine and apical area with a notch. Cercus stout when viewed laterally; base slightly narrow, internal margin longitudinally concave, apical area slightly curved inwards, dorsal and ventral margins bearing 1 curved spine-like process respectively, dorsal process slender, elongate and slightly curved interiorly, but ventral one short, thick and slightly curved dorsad. Base of genitalia fused with subgenital plate and ventral margin with 1 pair of stout and short processes, its distal part bluntly rounded; distal half of genitalia exposed, slender, apex truncate. Coloration. Body yellowish green, dorsal surface of head brown; eyes reddish brown; antennae blackish brown. Pronotal disc with a broad longitudinal brown stripe and its outer margins blackish brown, and with a thin longitudinal light yellow stripe in the midline, medial transverse sulcus blackish brown. Tegmen light brown, and exposed area of hind wing light brown. Apex of cercus with a dorsal spine brown. Apex of genitalia brown. Spines on tibiae with apices brown. Female. Appearance is similar to male. Cercus conical, apex acute. Ovipositor nearly straight, dorsal valvulae as long as ventral ones, apices of dorsal valvulae acute and apices of ventral ones hook-shaped. Subgenital plate nearly trapezoid (deformed), basal area broad, basal margin concave. Type material. Holotype: ♂, Tongbiguan, Yingjiang, Yunnan, 8 August, 2018, coll. Peng Cui. Paratype: 1♀, Tongbiguan, Yingjiang, Yunnan, 8 August, 2018, coll. Peng Cui. Measurements(mm). Body: ♂ 15.2, ♀ 15.0; pronotum: ♂ 5.0, ♀ 4.5; postfemora: ♂ 15.0, ♀ 16.2; tegmina: ♂ 19.0, ♀ 18.6; ovipositor: 14.2. Distribution. China (Yunnan). Discussion. The new species slightly resembles Macroteratura (Macroteratura) thrinaca (Qiu & Shi, 2010) and Macroteratura (Macroteratura) megafurcula (Tinkham, 1944), but differs in the following characters: the posterior process of male tenth abdominal tergite with 1 spine on inner margin of subapical area, apical area with a notch; cercus with 1 curved spine-like process on dorsal and ventral margins on apical area respectively; base of genitalia with 1 pair of stout and short processes on ventral margin, its apex truncate. Etymology. The name of the new species is derived from the subapical area of posterior process of male tenth abdominal tergite with 1 spine on inner margin. Latin “ in- ” means inner margin; Latin “ spin -” means spine.Published as part of Chen, Lixuan, Cui, Peng, Zhuo, Zhao & Chang, Yanlin, 2020, Notes on the genus Macroteratura Gorochov, 1993 (Tettigoniidae: Meconematinae Meconematini) with description of one new species from China, pp. 95-104 in Zootaxa 4857 (1) on pages 96-98, DOI: 10.11646/zootaxa.4858.1.6, http://zenodo.org/record/441161
Stegana (Steganina) daiya Cui & Chen, sp. nov.
No full textStegana (Steganina) daiya Cui & Chen, sp. nov. (Figs. 7I, 7J, 35D–F) Diagnosis. Eighth sternite broadened, rounded distally, with several sensilla, setae, and some pubescence distolaterally (Fig. 35E). Description. Female: Clypeus brownish. Mesonotum dark brown medially, brown laterally (Fig. 7I, J). Katepisternum yellow, slightly greyish below (Fig. 7J). Scutellum black (Fig. 7I). Halter mostly grey. Fore femur with a row of 3 long setae on distal part of posteroventral surface. Abdominal tergites mostly black (Fig. 7I, J); sternites brownish, slightly wider than long. Female terminalia (Fig. 35D–F): Epiproct with several setae, lacking pubescence (Fig. 35D). Cercus with numerous setae and much pubescence (Fig. 35D). Hypoproct with numerous setae and much pubescence posteriorly (Fig. 35F). Measurements and indices. BL = 2.77 mm in holotype (2.81 in 1♀ paratype), ThL = 1.41 mm (1.45), WL = 2.67 mm (2.79), WW = 1.34 mm (1.28), arb = 6/4 (7/5), avd = 0.72 (0.86), adf = 0.77 (0.82), flw = 1.80 (1.67), FW/ HW = 0.40 (0.41), ch/o = 0.39 (0.47), prorb = 1.47 (1.42), rcorb = 1.16 (0.96), vb = 0.50 (1.06), dcl = 0.88 (0.56), presctl = 0.59 (0.56), sctl = 0.91 (1.14), sterno = damaged (0.76), orbito = 2.07 (2.00), dcp = 0.19 (0.18), sctlp = 1.17 (1.49), C = 1.93 (2.09), 4c = 1.30 (1.40), 4v = 2.23 (2.49), 5x = 2.07 (2.00), ac = 9.33 (9.46), M = 0.72 (0.76), C3F = 0.66 (0.72). Type materials. Holotype ♀ (SCAU, No. 125608, DNA #2565), CHINA: Fengtongzhai, Baoxing, Sichuan, 30°32'42''N, 102°54'24''E, alt. 1700m, 19.ix.2005, ex tussock, H.W. Chen. Paratype: 1♀ (SCAU, No. 125609, DNA #547), other data same as holotype. Distribution. China (Sichuan). Etymology. From the word " daiya " in Qiang language from the Qiang nationality living in Sichuan, China, referring to the meaning "a mysterious place".Published as part of WANG, YA-LIAN, LI, BING-XUE, CUI, MENG-DI, ZHANG, YUAN, WANG, LE, ZHANG, CAI-HONG, TSAUR, SHUN-CHERN, CHEN, HONG-WEI & HUANG, JIA, 2023, Revision of the subgenus Stegana (Steganina) from China, with assessment of species delimitation using DNA barcodes (Diptera, Drosophilidae), pp. 1-109 in Zootaxa 5250 (1) on page 66, DOI: 10.11646/zootaxa.5250.1.1, http://zenodo.org/record/770565
Stegana (Steganina) marenubila Cui & Chen, sp. nov.
No full text<i>Stegana</i> (<i>Steganina</i>) <i>marenubila</i> Cui & Chen, sp. nov. <p>(Figs. 5A, 5B, 21)</p> <p> <b>Diagnosis.</b> This species resembles <i>S</i>. (<i>S</i>.) <i>crinata</i> Zhang & Chen, 2015 in the shape of epandrium, surstylus, and cercus (as fig. 2 in Zhang & Chen 2015, Fig. 21A), but can be distinguished from the latter by having the aedeagus with 3 pair of basally fused processes: ventral pair small, medial pair slender, and dorsal pair strong (Fig. 21B, C).</p> <p> <b>Description.</b> Male and female: Frons yellow in male, brown in female. First flagellomere yellow in male, brown in female. Face black, with 1 yellow band medially; facial carina absent. Clypeus black. Palpus mostly yellow. Mesonotum and scutellum yellow in male (Fig. 5A, B), brownish in female. Katepisternum yellowish (Fig.</p> <p> 5B). Halter mostly grey (Fig. 5B). Fore femur with 3 thin, long setae on distal part of posteroventral surface. Abdominal tergites yellow (Fig. 5A, B), 4th to 6th tergites brownish medially in female; sternites yellow, about 2 times as wide as long. Male terminalia (Fig. 21): Epandrium with <i>ca</i>. 8 setae on dorsal to posterior portions per side (Fig. 21A). Surstylus lacking pubescence (Fig. 21A). Cercus with much pubescence (Fig. 21A). Hypandrium slightly expanded anteromedially (Fig. 21B, C). Pregonite blurry or absent (Fig. 21B, C). Junction between hypandrium and aedeagus with 3 sensilla per side (Fig. 21B, C).</p> <p> <b>Measurements and indices.</b> BL = 2.45 mm in holotype (2.73 in 1♀ paratype), ThL = 1.21 mm (1.19), WL = 2.56 mm (2.75), WW = 0.93 mm (1.12), arb = 7/4 (7/5), avd = 0.73 (0.67), adf = 1.07 (1.21), flw = 1.42 (1.69), FW/ HW = 0.32 (0.37), ch/o = 0.24 (0.24), prorb = 0.96 (0.90), rcorb = 1.20 (0.54), vb = 0.57 (0.46), dcl = 0.28 (1.22), presctl = 0.38 (0.38), sctl = damaged (2.63), sterno = 0.41 (0.46), orbito = 2.22 (1.89), dcp = 0.53 (0.30), sctlp = 1.50 (1.39), C = 2.20 (2.16), 4c = 1.62 (1.02), 4v = 2.49 (1.75), 5x = 1.29 (1.42), ac = 10.75 (8.46), M = 0.93 (0.56), C3F = 0.64 (0.60).</p> <p> <b>Type materials.</b> Holotype ♂ (SCAU, No. 125411, DNA #2347), CHINA: Manghai, Mangshi, Yunnan, 24°07'03''N, 98°19'04''E, alt. 1720m, 8.xi.2017, ex tree trunk, H.W. Chen. Paratype: 1♀ (SCAU, No. 125412, DNA #2747), other data same as holotype.</p> <p> <b>Distribution.</b> China (Yunnan).</p> <p> <b>Etymology.</b> A combination of the Latin words " <i>mare</i> " (= sea) and " <i>nubilus</i> " (= nubilous), referring to the meaning of the type locality (Manghai: a sea of clouds).</p>Published as part of <i>WANG, YA-LIAN, LI, BING-XUE, CUI, MENG-DI, ZHANG, YUAN, WANG, LE, ZHANG, CAI-HONG, TSAUR, SHUN-CHERN, CHEN, HONG-WEI & HUANG, JIA, 2023, Revision of the subgenus Stegana (Steganina) from China, with assessment of species delimitation using DNA barcodes (Diptera, Drosophilidae), pp. 1-109 in Zootaxa 5250 (1)</i> on pages 47-48, DOI: 10.11646/zootaxa.5250.1.1, <a href="http://zenodo.org/record/7705657">http://zenodo.org/record/7705657</a>
Stegana (Steganina) zhuoma Cui & Chen, sp. nov.
No full textStegana (Steganina) zhuoma Cui & Chen, sp. nov. (Figs. 14G, 14H, 65D–F) Diagnosis. This species is similar to S. (S.) zaduo sp. nov. in the shape of female terminalia (Fig. 65), but can be distinguished from the latter by having the yellowish katepisternum brown on anterior corner (Fig. 14H); the 8th sternite nearly squared, with several setae and much pubescence on distolateral 1/3 (Fig. 65E). Description. Female: First flagellomere brown. Clypeus black. Mesonotum black medially, brown laterally (Fig. 14G). Scutellum black, yellow at tip (Fig. 14G). Halter mostly white (Fig. 14H). Fore femur with a row of 3 long, strong setae on distal part of posteroventral surface. All abdominal tergites dark brown to black (Fig. 14G, H); sternites brown, about 2 times as wide as long. Female terminalia (Fig. 65D–F): Epiproct with several setae, lacking pubescence (Fig. 65D). Cercus and hypoproct with numerous setae and much pubescence (Fig. 65D, F). Eighth sternite glabrous on basal 2/3 (Fig. 65E). Measurements and indices. BL = 2.70 mm in holotype, ThL = 1.45 mm, WL = 2.92 mm, WW = 1.26 mm, arb = 7/5, avd = 0.85, adf = 1.17, flw = 2.22, FW/HW = 0.39, ch/o = 0.25, prorb = 1.02, rcorb = 0.76, vb = 0.74, dcl = 0.48, presctl = 0.57, sctl = damaged, sterno = 0.77, orbito = 1.90, dcp = 0.32, sctlp = 1.45, C = 1.66, 4c = 1.35, 4v = 1.95, 5x = 1.45, ac = 12.89, M = 0.71, C3F = 0.63. Type material. Holotype ♀ (SCAU, No. 125789, DNA #2757), Tongmai, Bomi, Xizang, 30°06'00''N, 95°05'00''E, alt. 2000m, 11.x.2010, ex tree trunk, L. Wang. Distribution. China (Xizang). Etymology. From the word " zhuoma " in Zang language from the Zang nationality living in Xizang, China, referring to women.Published as part of WANG, YA-LIAN, LI, BING-XUE, CUI, MENG-DI, ZHANG, YUAN, WANG, LE, ZHANG, CAI-HONG, TSAUR, SHUN-CHERN, CHEN, HONG-WEI & HUANG, JIA, 2023, Revision of the subgenus Stegana (Steganina) from China, with assessment of species delimitation using DNA barcodes (Diptera, Drosophilidae), pp. 1-109 in Zootaxa 5250 (1) on page 102, DOI: 10.11646/zootaxa.5250.1.1, http://zenodo.org/record/770565
Stegana (Steganina) magniflava Cui & Chen, sp. nov.
No full text<i>Stegana</i> (<i>Steganina</i>) <i>magniflava</i> Cui & Chen, sp. nov. <p>(Fig. 11A, 11B)</p> <p> <b>Diagnosis.</b> This species differs from the other <i>Steganina</i> species in having the large body size (BL = 3.32 mm in holotype) and the yellow body color (Fig. 11A, B).</p> <p> <b>Remarks.</b> The terminalia of the only male specimen was partly damaged (probably eaten by a cockroach) and 11A). Katepisternum yellowish (Fig. 11B). Halter mostly grey (Fig. 11B). Fore femur with a row of 4 or 5 strong setae on distal part of posteroventral surface.Abdominal tergites brownish yellow (Fig. 11A, B); sternites brownish, about 2 times as wide as long.</p> <p> <b>Measurements and indices.</b> BL = 3.32 mm in holotype, ThL = 1.49 mm, WL = 3.19 mm, WW = 1.33 mm, arb = 7/4, avd = 0.84, adf = 1.17, flw = 2.67, FW/HW = 0.35, ch/o = 0.31, prorb = 0.85, rcorb = 0.67, vb = 0.66, dcl = 0.53, presctl = 0.59, sctl = 1.96, sterno = 0.84, orbito = 1.67, dcp = 0.32, sctlp = 1.74, C = 1.77, 4c = 1.02, 4v = 1.48, 5x = 1.37, ac = 10.73, M = 0.48, C3F = 0.67.</p> <p> <b>Type material.</b> Holotype ♂ (SCAU, No. 125788, DNA #2078), Muyiji Park, Ximeng, Yunnan, 22°37'15''N, 99°35'42''E, alt. 1200m, 29.iv.2016, ex tree trunk, J. Huang.</p> <p> <b>Distribution.</b> China (Yunnan).</p> <p> <b>Etymology.</b> A combination of the Latin words " <i>magnus</i> " (= large) and " <i>flavus</i> " (= yellow), referring to the large body size and the yellow body color.</p>Published as part of <i>WANG, YA-LIAN, LI, BING-XUE, CUI, MENG-DI, ZHANG, YUAN, WANG, LE, ZHANG, CAI-HONG, TSAUR, SHUN-CHERN, CHEN, HONG-WEI & HUANG, JIA, 2023, Revision of the subgenus Stegana (Steganina) from China, with assessment of species delimitation using DNA barcodes (Diptera, Drosophilidae), pp. 1-109 in Zootaxa 5250 (1)</i> on pages 82-83, DOI: 10.11646/zootaxa.5250.1.1, <a href="http://zenodo.org/record/7705657">http://zenodo.org/record/7705657</a>
Stegana (Steganina) curvitabulata Cui & Chen, sp. nov.
No full textStegana (Steganina) curvitabulata Cui & Chen, sp. nov. (Figs. 7G, 7H, 35A–C) Diagnosis. Eighth sternite broadened, curlied laterally, with dense setae along posterior margin (Fig. 35B). Remarks. The terminalia of the only male specimen was partly damaged (probably eaten by a cockroach) and undescribed. Description. Male and female: First flagellomere brown. Clypeus brownish medially, yellow laterally. Mesonotum dark brown medially, brownish laterally (Fig. 7G). Katepisternum yellowish (Fig. 7H). Scutellum dark brown (Fig. 7G). Halter mostly grey (Fig. 7H). Fore femur with a row of 4 or 5 sturdy setae on distal part of posteroventral surface. Abdominal tergites dark brown to black (Fig. 7G, H); sternites brown, about 2 times as wide as long. Female terminalia (Fig. 35A–C): Epiproct with several small sensilla, lacking seta and pubescence (Fig. 35A). Cercus and hypoproct with numerous setae and much pubescence (Fig. 35A, C). Measurements and indices. BL = 3.31 mm in holotype (2.84 in 1♂ paratype), ThL = 1.61 mm (1.49), WL = 3.13 mm (2.52), WW = 1.26 mm (1.16), arb = 9/5 (9/5), avd = 0.68 (0.83), adf = 1.59 (1.53), flw = 2.59 (2.68), FW/ HW = 0.33 (0.34), ch/o = 0.29 (0.23), prorb = 0.86 (0.91), rcorb = 0.75 (0.62), vb = 0.89 (0.74), dcl = 0.67 (0.63), presctl = 0.79 (0.76), sctl = 1.54 (2.13), sterno = 0.72 (0.91), orbito = 1.74 (1.66), dcp = 0.38 (0.37), sctlp = 1.67 (1.47), C = 1.90 (1.71), 4c = 1.30 (1.06), 4v = 2.06 (1.71), 5x = 1.49 (1.29), ac = 16.83 (10.44), M = 0.74 (0.55), C3F = 0.63 (0.66). Type materials. Holotype ♀ (SCAU, No. 125498, DNA #2689), CHINA: Jianfengling, Ledong, Hainan, 18°41'50''N, 108°50'04''E, alt. 750m, 17.iv.2008, ex tussock, J.J. Gao. Paratype: 1♂ (SCAU, No. 125499, DNA #802), other data same as holotype. Distribution. China (Hainan). Etymology. A combination of the Latin words " curvus " (= curved) and " tabulatus " (= plate), referring to the lateally curlied 8th sternite.Published as part of WANG, YA-LIAN, LI, BING-XUE, CUI, MENG-DI, ZHANG, YUAN, WANG, LE, ZHANG, CAI-HONG, TSAUR, SHUN-CHERN, CHEN, HONG-WEI & HUANG, JIA, 2023, Revision of the subgenus Stegana (Steganina) from China, with assessment of species delimitation using DNA barcodes (Diptera, Drosophilidae), pp. 1-109 in Zootaxa 5250 (1) on pages 65-66, DOI: 10.11646/zootaxa.5250.1.1, http://zenodo.org/record/770565
Stegana (Steganina) idiasta Cui & Chen, sp. nov.
No full text<i>Stegana</i> (<i>Steganina</i>) <i>idiasta</i> Cui & Chen, sp. nov. <p>(Figs. 9I, 9J, 42D–F)</p> <p> <b>Diagnosis.</b> This species is similar to <i>S</i>. (<i>S</i>.) <i>curvitabulata</i> <b>sp. nov.</b> in the shape of epiproct, cercus (Figs. 35A, 42D), and hypoproct (Figs. 35C, 42F), but can be distinguished from the latter by having the palpus large, mostly yellow, distally slightly grey (Fig. 9J); the epiproct lacking sensilla, with some setae on distal 2/3 (Fig. 42D); the 8th sternite not curlied laterally, glabrous on basal 2/3, with several short setae and some pubescence on distal 1/3 (Fig. 42E).</p> <p> <b>Description.</b> Female: First flagellomere brownish. Clypeus yellow. Mesonotum brownish yellow medially, yellow laterally (Fig. 9I). Katepisternum yellowish (Fig. 9J). Scutellum brownish yellow medially, brown laterally (Fig. 9I). Halter mostly grey (Fig. 9J). Fore femur with a row of 3 long setae on distal part of posteroventral surface. Abdominal tergites dark brown (Fig. 9I, J); sternites brown, about 2 times as wide as long. Female terminalia (Fig. 42D–F): Cercus and hypoproct with numerous setae and much pubescence (Fig. 42D, F).</p> <p> <b>Measurements and indices.</b> BL = 3.15 mm in holotype (2.87–3.68 in 2♀ paratypes), ThL = 1.57 mm (1.49– 1.56), WL = 2.63 mm (2.88–3.08), WW = 1.21 mm (1.17–1.26), arb = 7/4 (7/4–5), avd = 0.78 (0.80–0.86), adf = 1.51 (1.17–1.24), flw = 2.92 (2.54–2.67), FW/HW = 0.35 (0.36–0.38), ch/o = 0.18 (0.21–0.22), prorb = 1.04 (0.78–0.89), rcorb = 0.88 (0.66–0.68), vb = 0.88 (0.77–0.93), dcl = 0.41 (0.50–0.54), presctl = 0.53 (0.46–0.59), sctl = damaged (1.80–1.89), sterno = 0.90 (0.78–0.82), orbito = 2.00 (1.66–1.82), dcp = 0.34 (0.34–0.40), sctlp = 1.87 (1.61–2.00), C = 1.71 (1.70–1.73), 4c = 1.36 (1.26–1.30), 4v = 1.95 (1.86–1.89), 5x = 1.21 (1.56–1.91), ac = 13.25 (19.33–23.60), M = 0.65 (0.62–0.66), C3F = 0.66 (0.61–0.62).</p> <p> <b>Type materials.</b> Holotype ♀ (SCAU, No. 125784, DNA #2189), Yixiang, Pu'er, Yunnan, 22°44'19''N, 101°07'01''E, alt. 1400m, 13.v.2012, ex tree trunk, H.W. Chen. Paratypes: 2♀ (SCAU, Nos. 125785, 86, DNA #2761, 2762), other data same as holotype.</p> <p> <b>Distribution.</b> China (Yunnan).</p> <p> <b>Etymology.</b> From the Greek word " <i>idiastçs</i> " (= hermit), referring to the <i>Steganina</i> flies being reclusive in the forest.</p>Published as part of <i>WANG, YA-LIAN, LI, BING-XUE, CUI, MENG-DI, ZHANG, YUAN, WANG, LE, ZHANG, CAI-HONG, TSAUR, SHUN-CHERN, CHEN, HONG-WEI & HUANG, JIA, 2023, Revision of the subgenus Stegana (Steganina) from China, with assessment of species delimitation using DNA barcodes (Diptera, Drosophilidae), pp. 1-109 in Zootaxa 5250 (1)</i> on page 77, DOI: 10.11646/zootaxa.5250.1.1, <a href="http://zenodo.org/record/7705657">http://zenodo.org/record/7705657</a>
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