Homoneura (Homoneura) laticosta
Creators: name: Shen, Rongrong
name: Shi, Li
name: Li, Wenliang
name: Wang, Junchao
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Lauxaniidae
Homoneura
Homoneura laticosta

description: Key to separate 8 species in the Homoneura (Homoneura) laticosta group
[Modified from Shi and Yang 2014]
1. Wing sapromyziform, with small costal black spines extending slightly before apex of R4+5....... .. H. (H.) kaszabi Shewell
- Wing homoneuriform, with small costal black spines extending to apex of R4+5..................................... 2
2. Wing with broad deep brown area extending from costal margin to M1 and a dark stripe on CuA1; mesonotum with a broad grayish brown medial stripe and a pair of postsutural lateral spots and short lateral stripes....... H. (H.) discoidalis (Kertész)
- Wing with brown area extending from costal margin to tip of R4+5 or M1, but no dark stripe on CuA1; mesonotum without pat- tern as above.........................................................................................3
3. Mesonotum with a blackish gray area between postpronotum on anterior margin, a pair of blackish gray postsutural lateral stripes extending to postsutural third dorsocentral seta; acrostichal setae in 4 rows; katepisternum blackish gray on lower part.................................................................................. H. (H.) czernyi Shatalkin
- Mesonotum yellow or yellowish brown, without pattern as above; acrostichal setae in 6–8 rows; katepisternum yellow..... 4
4. Mesonotum with a pair of brown medial stripes between dorsocentral setae rows; abdominal tergites 1–4 blackish brown except for yellow lateral margin and tergites 5–6 blackish brown; surstylus bifurcated apically in lateral view............................................................................................ H. (H.) yehliuensis Sasakawa
- Mesonotum without brown stripes; abdomen yellow; surstylus not as above....................................... 5
5. Arista pubescent, with longest ray about 1/4 height of 1 st flagellomere; surstylus hooked apically in lateral and posterior views................................................................................ H. (H.) grahami Malloch
- Arista plumose, with longest ray longer than 1/3 height of 1 st flagellomere; surstylus not as above...................... 6
6. Antennal 1 st flagellomere yellowish brown on apical half; wing with brown spots on r-m and dm-cu; abdominal tergites 3–4 or
3–6 with a small brown medial spot; surstylus consisting of an anterior ventral process and a short apical process in lateral view; phallus narrow subuliform apically with a small apical incision in ventral view..... .. H. (H.) obtusa Yang, Hu and Zhu - Antennal 1 st flagellomere yellow; wing without brown spots on r-m and dm-cu or only brown spot on dm-cu; abdominal tergites without spot; surstylus and phallus not as above........................................................... 7
7. Wing only with brown spot on dm-cu; surstylus short, slightly curved and acute apically in lateral view.................................................................................................. H. (H.) laticosta (Thomson)
- Wing without brown spot on r-m and dm-cu; surstylus long and curled upward in lateral view.... H. (H.) longa Gao and Yang
description: Published as part of Shen, Rongrong, Shi, Li, Li, Wenliang & Wang, Junchao, 2018, A new species of subgenus Homoneura from Northern China, with information of 12 species newly recorded (Diptera: Lauxaniidae: Homoneura), pp. 501-525 in Zootaxa 4418 (6) on pages 502-503, DOI: 10.11646/zootaxa.4418.6.1, http://zenodo.org/record/1245368