40 



BULLETIN 108, UNITED STATES NATIONAL MUSEUM. 



distinct, circular, on a line joining the middle of eyes ; antennae longer 

 than head (12 joints as long as head). 



Pronotum twice as broad as long; front margin straight; sides 

 tapering behind and rounded into the hind margin. Wing scales 

 plainly longer than the pronotum. Wings more than twice as long 



^c^x^:^t^. 



CM 



-"^^^m^^^ 



Fig. 26.— 1. PROKniNOTERMES SIMPLEX. DORSAL VIEW OF WORKER. X 20. 2. PrORHINOTERMES SIM- 

 PLEX. Dorsal view of soldier, x 20. 



as the abdomen, hyaline; the costal veins yellowish, base slightly 

 blackish; the cubitus forks before middle of wing, and with about 

 seven branches before the fork. (PL 4, fig. 1.) Head and thorax 

 with few erect hairs, many erect hairs on dorsum of abdomen. 

 Length to tip of wing, 9 mm. (Fig. 27.) 



