Ptychoptera

Kang, Zehui, Yao, Gang & Yang, Ding, 2013, Five new species of Ptychoptera Meigen with a key to species from China (Diptera: Ptychopteridae), Zootaxa 3682 (4), pp. 541-555 : 542

Key to males of Ptychoptera of China

1. Rs longer than r-m..................................................................................... 2

- Rs shorter or equal to r-m............................................................................... 8

2. Mesopleuron yellow.................................................................................. 3

- Mesopleuron black.................................................................................... 5

3. Wing with one brown band; apex of epandrial lobe curved.................................................... 4

- Wing without brown band; apex of epandrial lobe straight...................................... P. wangae sp. nov.

4. Wing with one narrow band and three brown clouds....................................... P. qinggouensis sp. nov.

- Wing with one narrow band and two brown clouds......................................... P. clitellaria Alexander

5. Wing with one brown band; gonostylus scoop-like........................................ P. xinglongshana Yang

- Wing with two brown bands; gonostylus not scoop-like...................................................... 6

6. Distal part of epandrium branched.................................................. P. gutianshana Yang et Chen

- Distal part of epandrium unbranched..................................................................... 7

7. Wing with an elliptic cloud at middle of CuA1............................................... P. bellula Alexander

- Wing without elliptic cloud at middle of CuA1..................................... P. longwangshana Yang et Chen

8. Wing with one brown band................................................................... P. lii sp. nov.

- Wing with two brown bands............................................................................ 9

9. Gonostylus longer than gonocoxite, slender and finger-like................................... P. bannaensis sp. nov.

- Gonostylus as long as gonocoxite........................................................................ 10

10. Gonostylus, medially with a finger-like projection interiorly and a semicircular projection externally, apically with a finger- like projection interiorly and a hook-like projection externally................................. P. lushuiensis sp. nov.

- Gonostylus, medially with two flat tongue-like projections, apically with a rounded projection and a slender finger-like projec- tion............................................................................ P. f o r m o s e n s i s Alexander