Tribes and genera of New Zealand Carabidae - Key to Bembidiini genera

Source: FNZ 60
Pronotal base with a transverse line of coarse punctures. Elytra: shoulders serrate (saw-toothed); interval 3 with 3 discal setiferous punctures;
stria 8 complete, deeper in apical half. [North and South Islands]
..... Pericompsus
IMAGE [400 W x 225 H pix]

Pronotal base smooth, without a transverse line of coarse punctures. Elytra: shoulders not serrate; interval 3 with 2 discal setiferous punctures;
stria 8 incomplete, only apical third present. [North Island]
..... Paratachys
IMAGE [400 W x 225 H pix]