Pachyprotasis

Zhong, Yihai & Wei, Meicai, 2010, The Pachyprotasis formosana group (Hymenoptera, Tenthredinidae) in China: identification and new species, Zootaxa 2523, pp. 27-49 : 28

Key to species groups of Pachyprotasis

1 Antennae black or red brown, sometimes with white stripe along the entire underside .............................................. 2

- Apex of antennae white or with white ring, the apical or the two apical flagellomeres sometimes black, and the underside of the white articles sometimes striped with black; articles 3–5 black, rarely and only in the male, pale along the underside .............................................................................................................................. formosana group

2 General color black and white or yellow, without red except on legs .......................................................................... 3

- General color of at least abdomen red-yellow or brown ............................................................................ indica group

3 Stigma dark brown to black, rarely with pale anterior margin, but then the hind legs are more or less red ................ 4

- Stigma in life green, in dry specimens mostly sordid yellow; in the male darker, fulvous or light brown, but still transparent ....................................................................................................................................... pallidistigma group

4 Wings not infuscated..................................................................................................................................................... 5

- Forewing uniformly infuscated, with infuscated apex or with infuscated band below stigma ........ parapeniata group

5 Hind legs black or pale yellow without red .................................................................................................................. 6

- Hind legs more or less red, red-brown, or red-yellow (in the male, sometimes only traces of that color at the base of tibiae or apex of femora) .......................................................................................................................... flavipes group

6 Hind tarsi mostly black, at least each apex of tarsomeres black ................................................................. rapae group

- General color of hind tarsi white or yellow, sometimes base of tarsomere 1, tarsomere 2 and apex of tarsomere 5 black ..................................................................................................................................................... opacifrons group