Colocasiomyia hailini Li & Gao, 2014
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publication ID |
https://dx.doi.org/10.3897/zookeys.406.7176 |
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publication LSID |
lsid:zoobank.org:pub:AF68F25C-57E0-4633-94D0-9E566D97A951 |
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persistent identifier |
https://treatment.plazi.org/id/8F467F73-9310-499B-875B-AB023BCD6992 |
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taxon LSID |
lsid:zoobank.org:act:8F467F73-9310-499B-875B-AB023BCD6992 |
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treatment provided by |
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scientific name |
Colocasiomyia hailini Li & Gao |
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sp. n. |
Colocasiomyia hailini Li & Gao View in CoL sp. n.
Figs 7 View Figures 2–22 , 14 View Figures 2–22 , 21 View Figures 2–22 , 37-43 View Figures 37–50
Type material.
Holotype ♂ (No. 001641): CHINA: Baihualing, Longyang, Baoshan, Yunnan, 1500 m (25°17.27'N, 98°48.7'E), ex Rhaphidophora decursiva inflorescence at Stage III, 29.vi.2006, JT Yin (KIZ).
Paratypes: same data as holotype (11♂, 27♀: Nos 001634-40, 42-49, 51-73); same but (25°17.19'N, 98°47.65'E) (2♂, 2♀: Nos 001674, 75, 1135, 1136), 19.vi.2011, JJ Gao; same but (25°17.19'N, 98°47.65'E) (4♂: Nos 000355-58), 12-15.vii.2011, JJ Gao; same but (25°17.19'N, 98°47.65'E) (2♂, 2♀: Nos 001298-301), from laboratory rearing of eggs in infructescences of Rhaphidophora decursiva collected on 3-9.viii.2012, JJ Gao, Z Fu, NN Li, JM Chen and SS Li; Yixiang, Simao, Pu’er, Yunnan (22°41.19'N, 101°7.77'E) (2♂, 1♀: Nos 001448, 50, 1517), from laboratory rearing of eggs in infructescences of Rhaphidophora decursiva collected on 12-13.xii.2012, JJ Gao and Z Fu (KIZ, SEHU).
Description.
Adult male. Head: Supracervical setae approximately 7 per side. Dorsomedial arm of tentorial apodeme 1/3 as long as dorsolateral arm. Eye red, somewhat roundish, with very sparse interfacetal setulae. Frontal vitta mat black. First flagellomere concave on inner margin. Facial carina trapeziform, medially wider than twice width of first flagellomere, as long as pedicel and first flagellomere combined. Palpus convex on ventrodistal portion. Cibarial posterior sensilla minute, 1 per side ( Fig. 37 View Figures 37–50 ). Labellum with 11 pseudotracheae per side.
Thorax: Scutum and scutellum glossy, blackish brown to black; thoracic pleura glossy, blackish brown. Acrostichal setulae in 4 rows.
Wing: Veins yellow. Halter grayish brown except for grayish yellow stalk.
Legs: Foreleg second tarsomere with 6 pegs ( Figs 7 View Figures 2–22 , 14 View Figures 2–22 ). Foreleg coxa large, with approximately 15 long setae on underside near attachment to trochanter. Small preapical dorsal setae present only on tibiae of hindlegs.
Abdomen: Tergites glossy, entirely dark brown; II to VI+VII each bearing setulae and setae in approximately 3 transverse rows; setae of posteriormost row largest. Sternites pale brown to brown; VI posteriorly not bilobed.
Terminalia ( Figs 38-42 View Figures 37–50 ): Epandrium pubescent dorsomedially only, with 6 setae per side near posterior margin, 15-16 setae per side on ventral portion and 23-24 setae as thick as upper cercal ones along ventral margin of ventral lobe; apodeme well developed into distally tapering, triangular extension strongly projected anteriad, twice as long as epandrial width, broadly sclerotized along dorsal and ventral margins ( Fig. 38 View Figures 37–50 ); anteroventral portion of epandrium curved inward, apically articulated to lateral arm of hypandrium. Surstylus broad, basally narrowly fused to basal corner of epandrial ventral lobe, dorsally broadly sclerotized, with 1 short, trichoid seta on upper medial portion of outer surface and 3 large, peg-like prensisetae on distal margin; lowest prensiseta nearly as long as width of surstylus, curved inwards and slightly downwards, especially in distal 1 /3, narrowly edged by caudoventral portion of surstylus only along its basal portion ( Figs 38 View Figures 37–50 , 39 View Figures 37–50 ). Cercus semilunar, narrower than 1/2 its (dorsoventral) height, pubescent on dorsal 2/3, with approximately 48 setae (including prominent one twice as long as others) all over and approximately 45 setulae on caudoventral, inner margin; ventral slightly incurved lobe 1/3-1/4 of cercal height ( Fig. 38 View Figures 37–50 ). Membrane between epandrium and cercus pubescent dorsally to laterally. Median piece of 10th sternite cordiform in posterior view, moderately sclerotized; lateral piece somewhat cuneiform, narrowing anteriad, connected to inner, basal corner of epandrial ventral lobe with membranous tissue. Hypandrium long, narrow, plate-like, anteriorly widened ( Fig. 42 View Figures 37–50 ). Parameres somewhat semilunar in ventral view, basally fused to each other, apically with 5 or 6 minute sensilla in small medioapical patch ( Figs 40 View Figures 37–50 , 42 View Figures 37–50 ). Aedeagus nearly entirely separated into a pair of lateral lobes, nearly straight, apically trilobed; lobes curved ventrad and connected with each other by tendon-like membranous structures ( Figs 40 View Figures 37–50 , 41 View Figures 37–50 ); apodeme rod-like, arched in lateral view, longer than aedeagus ( Fig. 40 View Figures 37–50 ).
Measurements (holotype / range in 10♂ paratypes, in mm): BL = 2.01 / 1.85-2.14, ThL = 0.86 / 0.76-0.94, WL = 1.79 / 1.59-1.89, WW = 0.79 / 0.72-0.85.
Indices (holotype / range in 10♂ paratypes): FW/HW = 0.54 / 0.53-0.56, ch/o = 0.48 / 0.46-0.55, prorb = broken / 1.08 (1♂), rcorb = 0.61 / 0.56-0.59 (6♂), orbito = 0.86 / 0.63-0.85, vb = 0.31 / 0.30-0.36, dcl = 0.52 / 0.54-0.62 (6♂), presctl = 0.38 / 0.30-0.39 (9♂), sctl = 0.75 / 0.59-0.77 (9♂), sterno = 0.75 / 0.72-0.94, mid katepisternal seta indistinguishable from other fine setae, dcp = 0.92 / 0.82-1.02, sctlp = 1.00 / 0.92-1.12, C = 1.90 / 1.72-2.12, 4c = 1.18 / 0.89-1.21, 4v = 1.79 / 1.28-1.75, 5x = 1.15 / 0.94-1.17, ac = 3.56 /3.04-3.59, M = 0.19 / 0.19-0.21, C3F = 0.48 / 0.35-0.53.
Female. Head, thorax, wing and legs as in male.
Terminalia: Tergite VII mid-dorsally not constricted; VIII pubescent nearly entirely, with 4-5 setae in a longitudinal row on unpubescent, discolored, posteroventral portion. Oviscapt distal elongation constricted dorsally at basal 1/3, apically somewhat truncate, with 6, 9 and 3 trichoid ovisensilla per side on distal 1/3 of dorsal margin, entire ventral margin, and at apex, respectively ( Fig. 43 View Figures 37–50 ).
Measurements (range in 10♀ paratypes, in mm): BL = 2.43-2.95, ThL = 0.89-1.22, WL = 1.90-2.48, WW = 0.85-1.07.
Indices (range in 10♀ paratypes): FW/HW = 0.55-0.59, ch/o = 0.50-0.62, prorb broken, rcorb = 0.40-0.52 (3♀), orbito = 0.68-0.91, vb = 0.29-0.35, dcl = 0.43-0.57 (6♀), presctl = 0.29-0.37 (7♀), sctl = 0.69-0.77 (9♀), sterno = 0.74-0.91, dcp = 0.90-1.09, sctlp = 1.00-1.12, C = 1.83-2.23, 4c = 1.00-1.14, 4v = 1.50-1.86, 5x = 0.87-1.19, ac = 3.28-4.00, M = 0.16-0.20, C3F = 0.38-0.59.
Distribution.
China (Yunnan).
Etymology.
The specific name " hailini " is a patronym in honor of the emeritus Professor Hai-lin Wang of the Southwest Forestry University, China.
Remarks.
This species resembles the following species, Colocasiomyia yini sp. n., in overall outer morphology, but can be distinguished from the latter by 1) C3F <2/3 (C3F ≥ 2/3 in yini sp. n.); 2) lowest, peg-like prensiseta on distal margin of surstylus curved inwards and slightly downwards, especially in distal 1/3, narrowly edged by caudoventral portion of surstylus only along its basal portion ( Fig. 39 View Figures 37–50 ) [in Colocasiomyia yini sp. n., lowest peg-like prensiseta strongly curved downwards in distal half, narrowly edged by caudoventral portion of surstylus along its whole length ( Figs 46 View Figures 37–50 )]; 3) ventral slightly incurved lobe of cercus 1/3-1/4 of cercal height ( Fig. 38 View Figures 37–50 ) [in Colocasiomyia yini , ventral lobe of cercus approximately 1/2 of cercal height ( Fig. 45 View Figures 37–50 )]; 4) distal, narrow part of oviscapt constricted dorsally at basal 1/3 ( Fig. 43 View Figures 37–50 ) [in Colocasiomyia yini sp. n., distal, narrow part of oviscapt almost even-edged ( Fig. 50 View Figures 37–50 )].
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