Condylostylus Bigot, 1859

Tang, Chufei, Zhu, Yajun & Yang, Ding, 2019, Sciapodinae from the Himalayan region with description of nine new species from Tibet (Diptera: Dolichopodidae), Zootaxa 4577 (1), pp. 1-28 : 19-20

publication ID

https://doi.org/ 10.11646/zootaxa.4577.1.1

publication LSID

lsid:zoobank.org:pub:69A7BB4B-00BB-4558-A63C-948B49FD339D

DOI

https://doi.org/10.5281/zenodo.5930453

persistent identifier

https://treatment.plazi.org/id/03D987E7-FFE2-FF9E-31CD-FAA63C1DFE2F

treatment provided by

Plazi

scientific name

Condylostylus Bigot, 1859
status

 

Genus Condylostylus Bigot, 1859 View in CoL View at ENA

Condylostylus View in CoL is the second largest genus in Sciapodinae View in CoL , with a high diversity in the Neotropical region, where 70% of the species occur ( Bickel 1994). Though the genus includes over 250 species, only eight species are recorded in the Himalayas region, of which 2 pairs of species are suggested to be synonyms. Condylostylus conspectus Becker View in CoL and C. caii Parent View in CoL were examined by Bickel (1994) who suggested the species to be very similar and probably conspecific. No additional C. caii View in CoL have been reported since Bickel (1994) and the differences between the two species mentioned by Parent (1934) are actually not sound based on our inspection of C. conspectus View in CoL . We agree with Bickel’s assessment that they are possibly synonyms; however, we do not make the decision since we have not studied the type specimens.

Condylostylus nebulosus Becker View in CoL and C. luteicoxa Parent View in CoL only differ in the mid tarsus and the description by Parent has some discrepancies with the holotype, which led Bickel (1994) and Yang et al. (2011) to suggest that they belong to the same species. But here they are still treated as separate species because the holotypes have not been examined and there are differences in the descriptions. Similar to Chrysosoma, Nyingchi View in CoL is the only region in Tibet we collected Condylostylus View in CoL .

Species of this genus can be distinguished by the following features: Head: frons with 1 strong vt arising from strongly raised tubercle on frons in both sexes; face sometimes bulging beneath antenna; male clypeus broad and close to eye margin; arista-like stylus usually dorsal. Thorax usually with 2–3 pairs of long acr, 5 strong dc; strong lateral and median sc. Legs: Fore coxa with 3 strong black distolateral bristles; fore tibia usually without strong bristles; TII with obvious ad and pd; male usually with crocheted hairs on basal half of mid tibia and tarsus; hind tarsus sometimes with flattened pad-like tarsomeres. Wing often with dark brown bands, sometimes with enclosed window on crossvein dm-cu. M 1 characteristically with sharp, almost right angle bend at branch with M 2; crossvein dm-cu usually straight, sometimes slightly sinuate. Abdomen: Tergum VII well developed, sternum VII strongly reduced, membranous; hypopygium often relatively small compared with other Sciapodinae View in CoL , and basally encapsulated within segment VII; hypandrium often short and broad, lateral arm of hypandrium reduced or absent; cercus usually simple, commonly elongate and filamentous, seldom clavate and expanded ( Bickel 1994; Yang et al. 2011).

A key to Condylostylus from the Himalayan region is provided. Condylostylus albifrons Parent is not included because this species record in based only on female specimens.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Diptera

Family

Dolichopodidae

SubFamily

Sciapodinae

Loc

Condylostylus Bigot, 1859

Tang, Chufei, Zhu, Yajun & Yang, Ding 2019
2019
Loc

C. caii

Parent 1934
1934
Loc

C. caii

Parent 1934
1934
Loc

C. luteicoxa

Parent 1929
1929
Loc

Condylostylus conspectus

Becker 1922
1922
Loc

C. conspectus

Becker 1922
1922
Loc

Condylostylus

Bigot 1859
1859
Loc

Condylostylus

Bigot 1859
1859
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