Homoneura (Homoneura) platimarginata Gao & Shi 2019, sp. nov.
Creators: name: Gao, Xuefeng
name: Shi, Li
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Lauxaniidae
Homoneura
Homoneura platimarginata

description: Homoneura (Homoneura) platimarginata sp. nov.
(Figs 68−73, 74−78)
Description. MALE. Body length 6.3 mm, wing length 5.7 mm.
Head (Figs 69−70) yellow. Ocellar setae longer than anterior fronto-orbital setae. Parafacial yellow with a row of black short setulae on apical half of inner margin. Gena about 1/7 height of eye. Antenna yellow, 1st flagellomere about 1.9 times longer than high; arista blackish brown, with longest ray as long as 3/5 height of 1st flagellomere. Proboscis and palpus yellow.
Thorax (Fig. 71) yellow. Mesonotum with 0+3 dorsocentral setae (1st post–sutural dorsocentral setae behind the transversal suture), acrostichal setulae in irregular 6 rows. Legs mostly yellow, all tarsomeres 3–5 brown. Fore femur with 5 posterodorsal setae, 4 posteroventral setae and ctenidium with 14 short setae; fore tibia with 1 long preapical anterodorsal seta and 1 short apicoventral seta. Mid femur with 5 anterior setae and 1 short apicoposterior seta; mid tibia with 1 strong preapical anterodorsal seta and 3 strong apicoventral setae. Hind femur with 1 preapical anterodorsal seta; hind tibia with 1 long preapical anterodorsal seta and 1 short apicoventral seta. Wing (Fig. 73) pale yellow, brown apical spots on R 2+3, R 4+5 and M 1 separated from each other; a brown median spot on R 4+5 separated from upper margin of a brown stripe on crossvein dm-cu; subcostal cell pale yellow; 2nd (between R 1 and R 2+3), 3rd (between R 2+3 and R 4+5) and 4th (between R 4+5 and M 1) sections in proportion of 5.6:1.5:1; r-m before middle of discal cell; ultimate and penultimate sections of M 1 in proportion of 1:1.5; ultimate sections of CuA 1 about 1/9. Halter pale yellow.
Abdomen (Fig. 68) yellow. Male genitalia (Figs 72, 74−78): syntergosternite 7+8 elliptic; epandrium slightly broad, surstylus broad and margined apically in lateral view; hypandrium H-shaped; pregonite and postgonite sharp at apex in lateral view; phallus with sharp dorsal and lateral processes in lateral view; phallapodeme longer than phallus.
FEMALE. Body length 6.0– 6.3 mm, wing length 5.5–5.7 mm.
Type material. CHINA, Shaanxi Province: Holotype ♂ (IMAU), Foping County, Yunba, Heilongtan, 27. VIII. 2014, Xiu-mei Lu. Paratypes (IMAU): 1♀, Liuba County, Mt. Guanghua, 1912 m, 20. VIII. 2013, Yuqiang Xi; 4♀♀, Foping County, Daguping, 1366.2 m, 22. VIII. 2014, Xiumei Lu.
Distribution. China (Shaanxi).
Remarks. The new species is similar to Homoneura (Homoneura) guizhouensis Gao & Yang, 2002 from China (Guizhou), but the latter has the following features: a brown median spot being present on R 4+5 fused with upper margin of brown spot on dm-cu, the gonites lacking a furcation in lateral view, and the phallus having deep incision subapically in lateral view.
Etymology. Latin, plati -, meaning broad + marginata, meaning margined, referring to the surstylus broad and margined apically in lateral view; a feminine adjective.
description: Published as part of Gao, Xuefeng & Shi, Li, 2019, Nine new species of genus Homoneura from Qinling mountains in China (Diptera: Lauxaniidae), pp. 401-432 in Zootaxa 4608 (3) on pages 417-424, DOI: 10.11646/zootaxa.4608.3.1, http://zenodo.org/record/3770275