Homoneura (Homoneura) anadaequata 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 anadaequata

description: Homoneura (Homoneura) anadaequata sp. nov.
(Figs 1−7, 8−12)
Description. MALE. Body length 6.9−7.5 mm, wing length 6.3−7.0 mm.
Head (Figs 2−3) yellow. Frons as long as wide and parallel–sided, with a pair of pale brown stripes extending to ocellar triangle; ocellar setae longer than anterior fronto-orbital setae. Face with a dark yellow transverse band on ventral margin and dark yellow on inner margin. Gena about 1/8 height of eye. Antenna yellow; 1st flagellomere yellowish brown, about 2.3 times longer than high; arista brown except for yellow base, with longest ray about 1.1 times as long as height of 1st flagellomere. Proboscis pale yellow and palpus yellow.
Thorax (Fig. 4) yellow. Mesonotum with 3 dorsocentral setae (1st post-sutural dorsocentral seta behind the transversal suture), acrostichal setulae in irregular 10 rows, a pair of prescutellar setae about 1.6 times as long as 1st dorsocentral setae. Legs mostly yellow, all tarsomeres 3−5 pale brown at apex. Fore femur with 8 posterodorsal setae, 4 posteroventral setae and ctenidium with 17 short setae; fore tibia with 1 long preapical anterodorsal seta and 1 short apicoventral seta. Mid femur with 4 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 long apicoventral seta. Wing (Fig. 7) pale yellow, with brown elliptical apical spots on R 2+3, R 4+5 and M 1, basal margin of apical spot on R 2+3 slightly beyond the vertical level of crossvein dm-cu; a small brown oval median spot between crossveins r-m and dm-cu; brown cloud on crossvein dm-cu getting narrow at middle; 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 6.2:1.5:1; r-m before middle of discal cell; ultimate and penultimate sections of M 1 in proportion of 1:2; ultimate section of CuA 1 about 1/9 of penultimate. Halter yellow.
Abdomen (Figs 5−6) yellow, male tergites 2−5 each with brown posterior margin. Male genitalia (Figs 8−12): syntergosternite 7+8 circular with a broad ventral process; epandrium slender, surstylus long and furcated; hypandrium nearly H-shaped; postgonites asymmetrical; phallus slender with a pair of brown sharp triangle apical processes in ventral view; phallapodeme project forward and almost 90 degrees angle with phallus.
FEMALE. Body length 6.7–7.7 mm, wing length 6.3–7.0 mm.
Type material. CHINA, Shanxi Province: Holotype ♂ (IMAU), Foping County, Daguping, 1366.2 m, 22.VIII. 2014, Xiumei Lu. Paratypes (IMAU): 9♂♂, data same as holotype; 4♂♂, Foping County, Daguping, 1329.2 m, 24. VIII. 2014, Xiumei Lu; 2♀♀, Zhouzhi County, Mt. Taibai, 1565 m, 13.VIII. 2013, Wei Zhang; 28♀♀, Foping County, Daguping, 1366.2 m, 22.VIII. 2014, Xiumei Lu; 5♀♀, Zhouzhi County, Mt. Taibai, 1565 m, 13.VIII.2013, Xuankun Li.
Distribution. China (Shaanxi).
Remarks. The new species is similar to Homoneura (Homoneura) brevis Gao & Yang, 2004 from China (Guangxi), but the latter has the following features: the mesonotum having acrostichal setulae in 8 rows, the ctenidium having 14 short setae on fore femur and the surstylus having a small acute teeth-like process in lateral view.
Etymology. Latin, an -, meaning no + adaequata, meaning symmetrical, referring to the postgonites asymmetrical in ventral 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 page 405, DOI: 10.11646/zootaxa.4608.3.1, http://zenodo.org/record/3770275