Homoneura (Neohomoneura) zengae, Shi, Li & Yang, Ding, 2008

Shi, Li & Yang, Ding, 2008, Species of the subgenus Neohomoneura van der Wulp from Hainan in China (Diptera, Lauxaniidae), Zootaxa 1793, pp. 28-46: 42-44

publication ID

http://doi.org/ 10.5281/zenodo.182594

persistent identifier

http://treatment.plazi.org/id/038987B3-FFFE-3B1C-FCAC-297DFA28FC14

treatment provided by

Plazi

scientific name

Homoneura (Neohomoneura) zengae
status

sp. nov.

Homoneura (Neohomoneura) zengae  sp. nov.

( Figs. 10View FIGURES 1 – 10, 41– 45View FIGURES 41 – 45)

Diagnosis. Apical spot on R 4 + 5 confluent with that on R 2 + 3 but separated from spot on M 1 + 2; spot on dm-cu constricted at middle. Male abdominal tergites 2–6 (female 2–7) each with dark posterior margin and male tergites 4–6 (female 4–7) each with a dark triangular median spot connected with dark posterior margin. Aedeagus short and wide with a wide apical incision.

Description. MALE. Body length 5.9–6.8 mm, wing length 5.1–5.9 mm. FEMALE. Body length 6.1–6.3 mm, wing length 5.4–5.5 mm.

Head brownish yellow. Frons about as long as wide and parallel –sided, with 2 brown stripes extending to ocellar triangle; ocellar triangle yellowish; oc developed, about as long as anteriormost or; gena about 1 / 5 height of eye. Antenna yellow, 1 st flagellomere 2.5 times as long as wide; arista brown except yellowish base, with longest hairs longer than width of 1 st flagellomere. Proboscis yellow, with yellowish hairs; palpus yellow, with dark hairs.

Thorax brownish yellow. Mesoscutum with 0+ 3 dc (anteriormost dc clearly behind transverse scutal suture), acr in 10 somewhat irregular rows, uniformly short hair –like; prsc slightly longer than 1 st post – sutural dc. Legs yellow, tarsomeres 2–5 brownish yellow. Fore femur with 5–6 strong pv, 8–9 pd, and ctenidium with 15 short bristles; fore tibia with 1 long preapical ad and 1 short apv. Mid femur with 4–6 a and 1 app, mid tibia with 1 strong preapical ad, 8–10 short pd and 3 strong apv. Hind femur with a row of weak av (only 2–3 apical bristles distinct) and 1 preapical ad; hind tibia with 1 weak preapical ad and 1 short strong apv; 1 st tarsomere with rows of short and dense v. Wing ( Fig. 10View FIGURES 1 – 10) slightly tinged yellowish, apical spot on R 4 + 5 confluent with that on R 2 + 3 but separated from spot on M 1 + 2, apical spot on R 4 + 5 with basal extremity at same vertical level or before apical spot on R 2 + 3; a spot on dm-cu constricted at middle; subcostal cell hyaline; costa with 2 nd (between R 1 and R 2 + 3), 3 rd (between R 2 + 3 and R 4 + 5) and 4 th (between R 4 + 5 and M 1 + 2) sections in proportion of 3.1: 0.8: 0.6; r-m before middle of discal cell; ultimate and penultimate sections of M 1 + 2 in proportion of 1.8: 2.7; ultimate section of CuA 1 about 1 / 7 of penultimate. Halter yellow.

Abdomen brownish yellow, male tergites 2–6 (female 2–7) each with dark posterior margin and male tergites 4–6 (female 4–7) each with a dark triangular median spot connected with dark posterior margin. Male genitalia ( Figs. 41–45View FIGURES 41 – 45): protandrium circular with a ventral bridge and two hairs around spiracle; surstylus long with curved and obtuse tip; hypandrium H –shaped, hypandrial apodemes distinct but weak; gonopod long triangular; aedeagus short and wide, with a wide apical incision, and with two pairs of lateral and ventral spines.

Type material. Holotype male, Hainan: Wuzhishan National Nature Reserve, Shuimanxiang (600 m), 15. V. 2007, Jie Zeng. Paratypes: 1 female, Hainan: data same as holotype; 1 male, Hainan: Jianfengling National Nature Reserve, Mingfenggu (1000 m), 25. X. 2007, Xingyue Liu; 1 female, Hainan: Bawangling National Nature Reserve, Donger station (1000 m), 22. X. 2007, Xingyue Liu; 3 males, 1 female, Hainan: Yinggeling National Nature Reserve, Hongmao village (430 m), 19. X. 2007, Ding Yang; 1 male, 1 female, Hainan: Jianfengling National Nature Reserve, Zhiwuyuan (800 m), 12. V. 2007, Junhua Zhang; 1 male, Hainan: Jianfengling National Nature Reserve, Zhiwuyuan (800 m), 22. V. 2007, Gang Yao.

Distribution. China (Hainan).

Remarks. The new species is very similar to Homoneura (Neohomoneura) nadaensis Yang, Hu & Zhu  from China (Hainan), but it can be separated from the latter by the protandrium circular with a ventral bridge, the hypandrium H –shaped, and the aedeagus short and wide with a wide apical incision. In H. nadaensis  , the protandrium is semicircular; the hypandrium is U –shaped; and the aedeagus is longer with a narrow and deep apical incision.

Etymology. The species is dedicated to Ms. Jie Zeng, who provided many specimens from her collection.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Diptera

Family

Lauxaniidae

Genus

Homoneura