Shirozuella Sasaji, 1967

Tong, Junbo, Zhang, Xiaoning, Chen, Xiaosheng & Wang, Xingmin, 2019, Three new species of Shirozuella Sasaji (Coleoptera, Coccinellidae) from China, Zootaxa 4615 (1), pp. 185-191 : 190-191

Key to species of Shirozuella Sasaji from China

1 Elytron black without spot or stripe....................................... Shirozuella limbata Tong & Wang , sp.n.

- Elytron with spots or stripes............................................................................. 2

2 Elytron with one yellow or yellowish brown spot or stripe..................................................... 3

- Elytron with two or more spots or stripes.................................................................. 8

3 Elytron with a nearly rounded spot....................................................................... 4

- Elytron with a long and diagonal stripe.................................................................... 6

4 Elytron with a large yellow spot placed on the apical half..................................................... 5

- Elytron with a yellowish brown spot situated between 3/5 and 4/5 elytral length to apex............................................................................................ Shirozuella poststigmaea Tong & Wang , sp.n.

5 Penis short and stout, penis guide in ventral view nearly triangular, apex pointed......... Shirozuella bimaculata Yu, 2000

- Penis long and slender, penis guide in ventral view almost parallel sided for basal 2/3, apex truncate with a pair of small triangular projections on each side..................................... Shirozuella motuoensis Wang, Ge & Ren, 2012

6 Elytral macula emarginate antero-laterally. Abdominal postcoxal line complete, reaching 1/2 length of ventrite 1...................................................................................... Shirozuella nibagou Yu, 2000

- Elytral macula without antero-lateral emargination. Abdominal postcoxal line complete, reaching more than 1/2 length of ventrite 1............................................................................................... 7

7 Elytra black, apex very narrowly brown. Anterior angles of pronotum black. Apex of penis guide pointed, slightly curved outwardly........................................................... Shirozuella tibetina Wang, Ge & Ren, 2012

- Elytra reddish brown, apical 1/10 yellow. Anterior angles of pronotum yellow. Apex of penis guide unciform.......................................................................... Shirozuella unciforma Wang, Ge & Ren, 2012

8 Elytron with two yellow or yellowish brown spots or stripes................................................... 9

- Elytron with more than two black spots................................................................... 12

9 Apex of penis strongly curved upwardly, forming a hook shape.......... Shirozuella flavosemiovata Tong & Wang , sp.n.

- Apex of penis not curved.............................................................................. 10

10 Each elytron with two longitudinal yellow spots. Pronotum black................. Shirozuella quadrimacularis Yu, 2000

- Each elytron with two transverse bands. Pronotum yellow or bicolored.......................................... 11

11 Pronotum black with lateral carina yellow........................................ Shirozuella parenthesis Yu, 2000

- Pronotum yellow.................................................. Shirozuella guoyuei Wang, Ge & Ren, 2012

12 Postcoxal line extending to a little more than 1/2 length of ventrite 1. Parameres long, without tentacle-like appearance. Elytra yellowish brown with seven black spots................................. Shirozuella alishanensis Yu & Pang, 1992

- Postcoxal line extending to much more than 1/2 length of ventrite 1. Parameres long, with tentacle-like appearance...... 13

13 Pronotum brown with two obscure spots, darkish brown. Elytra brown with nine black spots.......................................................................................... Shirozuella appendiculata Yu & Pang, 1992

- Pronotum yellowish brown without marks. Elytra yellowish brown with six black or dark marks and pair of lateral longitudinal marks................................................................... Shirozuella mirabilis Sasaji, 1967