A new species of subgenus Homoneura from Northern China, with information of 12 species newly recorded (Diptera: Lauxaniidae: Homoneura) Author Shen, Rongrong Author Shi, Li Author Li, Wenliang Author Wang, Junchao text Zootaxa 2018 4418 6 501 525 journal article 30093 10.11646/zootaxa.4418.6.1 f330755e-f750-40cc-aef2-d498ffe912bc 1175-5326 1245368 90EBB1FF-D313-426E-B71A-330CC522914A 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