An updated key to females in the subgenus Sinocoides of Culicoides

1 Eyes hairy, Wing without pale and dark spot (Fig 2)...... C. (S.) anthropophygas

Eyes bare, Wing with pale and dark spot................................................................ 2

2 (1) m 1,m 2,m 4 cell with pale......................................................................................... 3

https://doi.org/10.1371/journal.pone.0287266.t002

m 1,m 2,m 4 cell without pale.................................................................................... 7

https://doi.org/10.1371/journal.pone.0287266.t002

m 1,m 2,m 4 cell without pale.................................................................................... 7

3 (2) r 5 cell with 2~3 pale spots except the distal pale.................................................. 4

r 5 cell with 1 pale spot except the distal pale........................................................ 5

4 (3) r 5 cell with 3 pale spots except the distal pale, m 1 cell with 2 pale spots (Fig 6) .......................................................................... C. (S.) multifarious

r 5 cell with 2 pale spots except the distal pale, m 1 cell with 3 pale spots (Fig 8)........................................................................... C. (S.) pungobovis

5 (3) m 2 cell with a pale band and a pale spot................................................................ 6

m 2 cell with 4 pale spots (Fig 4)........................................... C. (S.) jinghongensis

6 (5) m 1 cell with pale band extended from base to the distal, anal cell with a pale spot at the Proximal (Fig 9)...................................................... C. (S.) malipoensis

m1 cell with 2 pale spots, anal cell with a wide pale band extended from the basal to the distal (Fig 1)..................................................... C. (S.) jiangchengensis

7(2) sensilla coeloconica on flagellomeres 1~12 or 1~13.............................................. 8

sensilla coeloconica on flagellomeres 1,9~12 or 1,9~13........................................ 9

8 (7) sensilla coeloconica on flagellomeres 1~12; mandible 18 teeth (Fig 3)................................................................................................... .. C. (S.) hamiensis

sensilla coeloconica on flagellomeres 1~13; mandible 13 teeth(Fig 5)................................................................................................ C. (S.) kongmiaoensis

9 (7) sensilla coeloconica on flagellomeres 1,9~12; m 2 and anal cell without pale spot (Fig 7)........................................................................................... C. (S.) opertus

sensilla coeloconica on flagellomeres 1,9~13; m 2 and anal cell with a pale spot respectively (Fig 10).............................................................. C. (S.) nanniwanensis