Homoneura (Homoneura) quinquenotata (Meijere, 1915)

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), Zootaxa 4418 (6), pp. 501-525 : 504-505

Key to separate 15 species in the Homoneura (Homoneura) quinquenotata group

[Modified from Shi and Yang 2014]

1. Mesonotum with 1–3 pairs of long acrostichal setae..........................................................2

- Mesonotum without long acrostichal setae..................................................................4

2. Wing with brown apex of veins R2+3, R4+5 and M1, but no brown round apical spots; epandrium with three apical procesees, sur- stylus broad with many tiny teeth ( Fig. 14 ).............................................. H. (H.) biumbrata Loew

- Wing with distinct brown apical spots on R2+3, R4+5 and M1 partly confluent or isolated...............................3

3. Wing with brown apical spots on R2+3, R4+5 and M1 isolated; epandrium with several strong setae on apical margin, surstylus indistinct in lateral view; postgonite slender subuliform in ventral view; phallus with a pair of tooth-like lateral processes and phallic sclerites round apically, with a shallow distal incision in ventral view................. H. (H.) stackelbergiana Papp

- Wing with brown apical spots on R2+3, R4+5 and M1 partly confluent and long brown stripe-like apical spot on R4+5 extending to top of brown cloud on dm-cu; male unknown, only syntype female known.................... H. (H.) levis (Wiedemann)

4. Wing with brown subapical spots on R4+5 and M1 confluent, far from preapical spot on R2+3; face with a brown spot; mesonotum with a large black spot between two dorsocentral setae rows before scutoscutellar suture........................................................................................................ H. (H.) suturalis Yang, Zhu and Hu

- Wing with brown preapical spots on R2+3, R4+5 and M1 separated entirely; face and mesonotum not as above.............. 5

5. Wing with brown spots on upper and lower margins of dm-cu ..................................................6

- Wing with a brown stripe-like spot or brown cloud on dm-cu ................................................... 7

6. Mesonotum without brown median and lateral stripes; surstylus consisting of a long ungulate process curved backward and a tiny spine-like inner process on posteroventral corner in lateral and posterior views...................................................................................................... .. H. (H.) haejuana Sasakawa and Kozánek

- Mesonotum with two brown median stripes extending to at apex of scutellum and two brown lateral stripes after suture, and a brown area locating between second dorsocentral seta and prescutellar setae; surstylus sharp at apex with a long setulae ( Fig. 23 )............................................................................. H. (H.) cerina Shatalkin

7. Mesonotum with brown stripes (occasionally absent in H. (H.) brevicornis and spinicauda )...........................8

- Mesonotum without brown stripes....................................................................... 11

8. Palpus entirely yellow..................................................................................9

- Palpus black on apical 1/3..............................................................................10

9. Mesonotum with a wide blackish brown median stripe extending to apical margin of scutellum; wing with a brown spot at tip of R1 and Sc, spot on R2+3 with same vertical level as brown spot on dm-cu................... H. (H.) crispa Li and Yang

- Mesonotum without brown median stripes extending to apical margin of scutellum ( Fig. 29 ); wing without brown spot at tip of R1 and Sc, spot on R2+3 close to tip of vein ( Fig. 31 )........................ H. (H.) sPinicauda Sasakawa and Ikeuchi

10. Wing with distinct brown spots; apical spots on R2+3 and R4+5 extending upward to costal margin; phallic sclerites with a pair of semicircular apical concavity in ventral view......................................... H. (H.) brevicornis (Kertész)

- Wing with obscure dark spots; subapical spot on R2+3 nearly at same vertical level of brown stripe-like spot on dm-cu, not extending upward to costal margin; phallus with deeply incised with apicolateral sclerites convergent, with a pair of dark inner furcated apical segments in ventral view.................................... ... H. (H.) litorea Shi, Gaimari and Yang

11. Mesonotum with acrostichal setae in 6 rows; antenna yellow or yellowish brown..................................12

- Mesonotum with acrostichal setae in 10 rows; antennal 1 st flagellomere black on apical 1/3..........................13

12. Abdominal tergites 5–6 with a blackish brown medial spot; surstylus short with a small process in lateral view; postgonite short; phallus straight apically in lateral view...................................... H. (H.) semiannulata Li and Yang

- Abdomen yellow; surstylus long and slightly curved in lateral view; postgonite long; phallus curved backward apically in lateral view................................................................. H. (H.) cangshanensis Li and Yang

13. A brown stripe-like spot on dm-cu constricted and getting narrow at middle; surstylus including two outer processes and an inner process; phallus broaden and blunt apically in lateral view...................... ... H. (H.) trisurstylata Li and Yang

- A brown stripe-like spot on dm-cu broaden at middle; surstylus not as above...................................... 14

14. Surstylus single, originated from tip of epandrium; phallus acute apically and pointing backward, but no apical teeth in lateral view....................................................................... H. (H.) quinquenotata (Meijere)

- Surstylus originated before tip of epandrium; hypandrium reverse U-shaped; phallus rounded apically with an acute apical tooth in lateral view......................................................... .. H. (H.) longinotata Shi and Yang

Figures

FIGURES 11–16. Homoneura (Homoneura) biumbrata (Loew, 1847). Non-type male: 11. habitus, lateral View; 12. head, dorsal View; 13. thorax, dorsal View; 14.abdomen, lateral View; 15. wing.Non-type female:16. abdomen, lateral View.

FIGURES 22–26. Homoneura (Homoneura) cerina Shatalkin, 2000. Nontype male: 22. abdomen, lateral View; 23, 24. syntergosternite and epandrium complex, lateral and posterior View. Non-type female: 25. abdomen, lateral View; 26. abdominal sternites 7‒10, Ventral View.

FIGURES 27–31. Homoneura (Homoneura) spinicauda Sasakawa and Ikeuchi, 1982. Non-type male: 27. habitus, lateral View;28.head, anterior View;29. thorax, dorsal View;30. abdomen, dorsal View; 31. wing.