HOW TO KNOW THE IMMATURE INSECTS 



25b. Anterior margin of ligula entire; labrum distinct, often movable. 

 Fig. 197 most STAPHYLINIDAE 



The short elytra of the adult sstaphy- 

 linids result in the larva and adults 

 otten resembling each other rather 

 closely. The many species range rath- 

 er widely in size. 



Fig. .197. a, Dorsal aspect of 

 head; b, Oligota oviformis 



Casey. 



26a. Cerci long tmd 2-segmented; antennae more than twice as long 

 as head; ligula bilobed; 6 ocelli on each side. 

 Fig. 198 Subfamily Steninae, STAPHYLINIDAE 



The members of this subfamily are rather fihort 

 and thick as compared with most staphylinids. 

 They live in sand and debris at the edge of water 

 courses and seem to be predacious. 



Fig. 198. Stenus so. 



26b. Cerci absent or small and immovable; antennae not longer than 

 head; ligula absent; less than 6 ocelli on each side, sometimes no 

 ocelli 27 



83 



