Homoneura (Homoneura) xunyangensis Gao & Shi, 2019

Zhang, Mengjing, Gao, Xuefeng & Shi, Li, 2019, Three new species of genus Homoneura from Qinling Mountains, China (Diptera: Lauxaniidae), Zoological Systematics 44 (2), pp. 146-157 : 150-153

publication ID

https://doi.org/ 10.11865/zs.201910

publication LSID

lsid:zoobank.org:pub:2856774E-CABF-451E-BBE5-99700B93F652

persistent identifier

https://treatment.plazi.org/id/9A6C87FA-FFEE-AF06-CB85-7AE2FC5EFC5A

treatment provided by

Diego

scientific name

Homoneura (Homoneura) xunyangensis Gao & Shi
status

sp. nov.

Homoneura (Homoneura) xunyangensis Gao & Shi View in CoL sp. nov. ( Figs 12−21 View Figures 12–16 View Figures 17–21 )

Type material. Holotype ♂ ( IMAU), CHINA, Shaanxi, Xunyang County, Zhima Village , 695 m, 2.VIII.2014, anonym.

Diagnosis The new species is similar to H. (H.) laticosta (Thomson, 1869) , but the latter has the following features: crossvein r-m without brown spots, surstylus without furcated apex in posterior view. This species is also similar to H. (H.) lagena Sasakawa & Ikeuchi, 1983 , but the latter has the following features: palpus blackish brown and male sternite 6 with 12−13 black spines on posterior margin.

Description. Male. Body length 5.2 mm, wing length 4.4 mm.

Head ( Figs 13−14 View Figures 12–16 ) yellow. Frons with brown anterior margin; anterior fronto-orbital setae, posterior fronto-orbital setae and ocellar setae missing. Parafacial yellow with a row of short setulae along apical half of inner margin. Gena about 1/7 height of eye. Antenna yellow, 1st flagellomere 2 times longer than high; arista blackish brown, short plumose, with longest ray as long as 1/2 height of 1st flagellomere. Proboscis and palpus yellow.

Thorax ( Figs 12, 15 View Figures 12–16 ) yellow. Postpronotum pale yellow. Mesonotum with 0+3 dorsocentral setae (1st postsutural dorsocentral seta far away from transverse suture), acrostichal setae in irregular 6 rows. Anepisternum and katepisternum brown. Legs mostly yellow, all tarsomeres 3–5 brown. Fore femur with 5 posterior dorsal setae, 3 posterior ventral setae and ctenidium with 11 short setae; fore tibia with 1 long preapical anterior dorsal seta and 1 short apicoventral seta. Mid femur with 7 anterior setae and 1 short apical posterior seta; mid tibia with 1 strong preapical anterior dorsal seta and 2 strong apicoventral setae. Hind femur with 1 preapical anterior dorsal seta and 4 anteroverntral setae; hind tibia with 1 long preapical anterior dorsal seta and 1 short apicoventral seta. Wing ( Fig. 16 View Figures 12–16 ) yellow, with brown area extending from costal margin to tip of R 4+5; two brown cloudy spots on r-m and dm-cu, respectively; subcostal cell hyaline; costa with 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 4.8:1.4:1; crossvein r-m at middle of discal cell; ultimate and penultimate sections of M 1 in proportion of 1:1.5; ultimate sections of CuA 1 about 1/7. Halter pale yellow.

Abdomen yellow ( Fig. 12 View Figures 12–16 ). Male genitalia ( Figs 17−21 View Figures 17–21 ): syntergosternite 7+8 semicircular; epandrium broad in lateral view, with a claviform process on anteroventral corner; surstylus with two sharp processes in lateral view and blackish brown connection area with epandrium; hypandrium H–shaped; pregonite with two sharp processes, postgonite triangular with sharp apex; phallus with double concavities in ventral view and sharp at apex in lateral view; phallic apodeme Y-shaped.

Distribution. China (Shaanxi).

Etymology. The new species is named after the collecting locality Xunyang.

IMAU

Inner Mongolia Agricultural University, Key Laboratory of Dairy Biotechnology and Engineering

R

Departamento de Geologia, Universidad de Chile

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Diptera

Family

Lauxaniidae

Genus

Homoneura

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