Key to species of genus Atlanticus known from Zhejiang, China (based on males)

1 tegmen short (<5mm, Fig. 2F)................................................... A. (Atlanticus) huangshanensis

- tegmen long (> 9mm, Fig. 2A–E)......................................................................... 2

2 cerci straight with a small tooth on inner side vertically (Fig. 3B)............................... A. (Sinpacificus) pieli

- cerci more or less curved................................................................................ 3

3 four lines of spines on fore tibiae................................................................ A. (S.) fallax

- three lines of spines on fore tibiae......................................................................... 4

4 internal tooth on the middle of cerci (Fig. 3A).................................................. A. (S.) magnificus

- internal tooth on the apical of cerci (Fig. 3 CE)............................................................... 5

5 tegmen almost same color and long (> 11mm)............................................... A. (S.) fengyangensis

- left tegmen with a white spot on the right and short (<11mm)........................................ A. (S.) interval