Chrysotimus huairouensis Wang, Chen & Yang
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|Chrysotimus huairouensis Wang, Chen & Yang|
First flagellomere somewhat trapeziform, about 0.8 times as long as wide. Acr absent. Hind tibia with 1 ad, 3 pd and row of v. Hind tarsomere 1 with 18-20 short and thick black ventral bristles at base. Epandrium apically with wide lateral process, process truncate apically; surstylus curved and somewhat swollen apically.
Male. Body length 2.1-2.3 mm, wing length 2.0-2.3 mm.
Head metallic green with gray pollen; frons and face brilliant. Hairs and bristles on head yellow. Ocellar tubercle weak, with 2 very long oc and 2 very short posterior hairs. Lower postocular bristles (including ventral hairs) pale. Antenna (Fig. 4) blackish; first flagellomere blackish, somewhat trapeziform, rather short, about 0.8 times as long as wide; arista dorsal, with basal segment very short. Proboscis dark brown, with blackish hairs; palpus pale yellow, with pale hairs and 2 pale yellow apical bristles.
Thorax metallic green with pale gray pollen, mesonotum and scutellum brilliant. Hairs and bristles on thorax yellow; 6 dc, no acr; scutellum with 2 pairs of bristles. Propleuron with 1 pale bristle on lower portion. Legs including coxae yellow with 5th tarsomere brown. Hairs and bristles on legs brown; coxae with yellowish hairs and bristles; mid and hind coxae each with 1 brown outer bristle. Mid and hind femura each with 1 av apically. Mid tibia with 2 ad and 2 pd, apically with 4 bristles; hind tibia with 1 ad, 3 pd and one row of v, apically with 3 bristles. Hind tarsomere 1 with 18-20 short and thick black ventral bristles at base. Relative lengths of tibia and 5 tarsomeres of legs. LI 3.2 : 2.2 : 0.9 : 0.7 : 0.6 : 0.6; LII 4.2 : 2.6 : 0.9 : 0.6 : 0.4 : 0.3; LIII 5.6 : 2.4 : 1.3 : 1.0 : 0.7 : 0.6.
Winghyaline; veins brownish, R4+5 and M parallel apically; CuAx ratio 0.23. Squama pale yellow with yellow hairs. Halter pale yellow.
Abdomen metallic green with pale gray pollen, dorsum brilliant, sterna 1-4 yellow. Hairs and bristles on abdomen yellow.
Male genitalia (Figs 5-6) dark brown: Epandrium distinctly longer than wide, apically with wide lateral process, process truncate apically; surstylus long and finger-like, curved and somewhat swollen apically; cercus round, with moderately long hairs; hypandrium shorter than epandrium.
Holotype ♂, Beijing: Huairou, Labagou (40°32'N, 116°63'E), 29.VII.2009, Yan Li. Paratype 1 ♂, same data as holotype. Type specimens are stored in 75% ethanol.
Known only from the type locality in Beijing.
This new species is similar to Chrysotimus dorsalis Yang, but may be separated from the latter by the single row of v on the hind tibia, and slender surstylus. In Chrysotimus dorsalis , the hind tibia lacks row of v, and the surstylus is wide ( Yang 2001).
The specific epithet derives from the type locality Huairou (Beijing).
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.