BLISTER BEETLES IN KANSAS. 



13 



smallest of our common blister beetles. The color may be either light gray 

 or yellowish, with scattered naked spots of the black background. The black 

 spots vary both in size and location, being barely dis- 

 cernible on some beetles and at least 0.3 mm. in di- 

 ameter on others. 



Egg. 



The egg of this species resembles that of Macro- 

 basis immaculata, but is smaller. 



Larva. 



Triungulin (fig. 13). — Length, about 1.25 mm.; 

 width, about 0.4 mm. ; widest in front of middle of 

 head just behind eyes, from which point the head 

 tapers posteriorly for the last half or more of its 

 length. In this respect it agrees with triungulins of 

 Epicauta pcnnsylvanica and E. lemmiscata, 3 but dif- 

 fers from Riley's figure of E. vittata* The head of 

 the latter is parallel-sided, resembling Macrobasis 

 immaculata, but differing in having a very short pos- 

 terior portion or neck and in having the eyes located about the middle of 

 the length of the head. In all triungulins examined by the writer the eyes 

 are located much nearer the anterior portion of 

 the head. 



In other respects the triungulin of this species re- 

 sembles that of Macrobasis immaculata (p. 8). 



Active larvw. — Neither the growing stages nor the 



third larva were recognized so they could be described. 



Coarctate larva. — The writer's records show one 



coarctate larva that measured 9 mm. long by 4 mm. 



wide which yielded an adult of this species. 



Pupa. 



Fig. 13. — Epicauta macu- 

 lata: Triungulin. En- 

 larged. 



Tig. 14. — Epicauta cine- 

 rea: Adult. (Chitten- 

 den.) 



The pupa of this species was not described for lack 

 of authentic material. It is similar in color and ap- 

 pearance to that of Macrobasis immaculata, but much 

 smaller. 



Epicauta cinerea Forst. 



Adult. 



Length of adult Epicauta cinerea (fig. 14), from 8 to 17 mm.; width, 1.75 to 

 4 mm. ; shape slender, with sides of elytra almost parallel ; color, bluish to 

 light or yellowish gray. 



Egg and Active Larva. 



Neither the egg nor any of the active larval stages of this species were secured 

 for descriptive purposes. 



'* Triungulins of this species were kindly furnished by Mr. Thos. H. Jones of the Bureau 

 of Entomology. 



4 Riley, C. V., Packard, A. S., and Thomas, Cyrus, op. cit., PI. IV, fig. 2. 



