Protohermes changninganus

Liu, Xingyue, Hayashi, Fumio & Yang, Ding, 2013, Taxonomic notes on the Protohermes changninganus species group (Megaloptera: Corydalidae), with description of two new species, Zootaxa 3722 (4), pp. 569-580 : 570

Key to species of the P. changninganus group

1. Vertex with a pair of long blade-like black markings ( Fig. 11), which anteriorly extend over postocular plane; legs mostly blackish brown; male ninth sternum with a pair of arcuately curved posteroventral lobes ( Fig. 13)..... P. curvicornis sp. nov.

- Vertex immaculate or with small black markings which do not extend to postocular plane; legs at least with femora yellow or yellowish brown; male ninth sternum with posteroventral lobes not curved arcuately................................ 2

2. Forewing distinctly with a large round pale markings at distal ⅓ ( Fig. 1); legs with tibiae mostly blackish-brown...................................................................................... P. changninganus Yang & Yang

- Forewing lacks distal round pale marking or with a rather small pale spot at distal ⅓; legs with tibiae mostly yellow or pale brown............................................................................................... 3

3. Male ninth sternum shallowly incised posteriorly, forming a pair of short posterolateral lobes ( Figs. 21, 28).............. 4

- Male ninth sternum moderately incised posteriorly, forming a pair of long digitiform posterolateral lobes ( Fig. 33)........................................................................................... P. subnubilus Kimmins

4. Head immaculate; pronotum with black markings small and widely separated from each other ( Fig. 26)...... P. ohli sp. nov.

- Head with a pair of black markings on vertex; pronotum with black markings broad, and anterior marking and posterior marking are close to each other ( Fig. 19)................................................. P. decemmaculatus (Walker)