Corresponding author: Zehui Kang (
Academic editor: Gunnar Kvifte
The genus
Zhang X, Kang Z (2022) The genus
Family
Sichuan province is situated in southwestern China; it includes Sichuan Basin, and parts of the Qinghai-Tibetan Plateau and the Hengduan Mountain region, which has been designated as one of the world’s biodiversity hotspots (
Several insect diversity investigations in Sichuan Province were initiated by the authors and other entomologists from 2013 to 2016, and the genus
Distribution map of
Adults were collected by insect net and light trap. Type specimens of the new species in this study were deposited in the
Adult unknown in
1 | Dorsal division of compound eye large, at least 1/2 of ventral division (Fig. |
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– | Dorsal division of compound eye small, at most 1/10 of ventral division (Figs |
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2 | Gonostylus bifurcated |
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– | Gonostylus not bifurcated |
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3 | Ultimate flagellomere shorter than penultimate flagellomere; Rs 1.5 times as long as r-m; ventral branch of gonostylus glabrous ( |
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– | Ultimate flagellomere longer than penultimate flagellomere; Rs as long as or slightly longer than r-m; ventral branch of gonostylus with two tufts of short dense setae (Kang &Yang 2014: figs 23, 24) |
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4 | Dorsal division of compound eye as large as ventral division (Fig. |
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– | Dorsal division of compound eye 1/2 as large as ventral division; epandrium semicircular, posterior margin rounded; cercus semi-elliptical; gonostylus with a semicircular inside lobe near base ( |
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5 | Cercus triangular, posterior margin tapered medially (Figs |
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– | Cercus semicircular or semi-elliptical, posterior margin round medially |
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6 | Outer gonocoxal lobe straight |
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– | Outer gonocoxal lobe S-shaped |
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7 | Ultimate flagellomere shorter than penultimate flagellomere (Fig. |
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– | Ultimate flagellomere longer than penultimate flagellomere (Fig. |
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8 | Mid coxa with a conical projection, conical projection about half as long as trochanter and densely with stiff black bristles towards tip ( |
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– | Mid coxa without projection like above |
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9 | Posterior margin of epandrium not distinctly concaved medially; cercus semicircilar; gonostylus bifurcated and strongly notched apically ( |
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– | Posterior margin of epandrium concave medially, V-shaped; cercus semi-elliptical; gonostylus not bifurcated and slightly notched apically ( |
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Compound eye with dorsal division 1/20 as large as ventral division in male. Rs 1.5 times as long as r-m. Cercus triangular. Dorsal branch of gonostylus short; ventral branch longer and broader than dorsal branch, round apically. Outer gonocoxal lobe transparent, S-shaped; inner gonocoxal lobe digitiform. Dorsal carina apparent, tip slightly blunt.
Currently known only from China (Sichuan).
The specific name refers to the type locality Gengda.
This new species is very similar to
Compound eye with dorsal division as large as ventral division in the male. Scutellum pale brown with anterior margin yellow. Rs as long as r-m. Cercus triangular. Gonostylus slightly swollen and notched apically. Dorsal carina apparent, tip nearly perpendicular. Genital fork X-shaped in female.
Currently known only from China (Sichuan).
The specific name refers to the type locality Mount Balangshan.
This new species is very similar to
Compound eye with dorsal division 1/15 as large as ventral division in male. Tibial spurs 0–0–2 in female. Rs 1.2 times as long as r-m. Cercus triangular. Dorsal branch of gonostylus short and broad, slightly swollen apically; ventral branch longer and slenderer than dorsal branch. Outer gonocoxal lobe transparent, S-shaped; inner gonocoxal lobe fusiform. Dorsal carina inapparent. Genital fork V-shaped.
Currently known only from China (Sichuan).
The specific name refers to the type locality Kongse.
This new species is very similar to
We express our sincere thanks to Ding Yang (Beijing) for his great help during our study. We are grateful to all the collectors for collecting specimens. The map supporting this study is from