FIELD BOOK OF INSECTS. 



Pronotum shining, its sides unarmed; usually not 

 longer than .3 in.; dark red; antennae, legs, and often the 

 suture of the elytra varying from dusky red to black. 

 Adults often abundant on flowers Batyle suturalis. 



2. Body pubescent; black; each elytron with a large 

 rounded orange spot near the base . . . Tragidion coquus. 



Body not pubescent 3. 



3. Black; each elytron with a large, triangular, scarlet 

 humeral area. Larvae probably in oak and hickory. 



Purpuricenus humeralis. 



Black ; front half of elytra orange yellow 



Purpuricenus axillaris. 



Clytini. (See page 341.) 



1. Head small, face short; process of first ventral abdomi- 

 nal segment between the hind coxae rounded 2. 



Head large, face long; process between the hind coxae 

 acute 7. 



2. Pronotum with three yellow crossbands and exca- 

 vated transversely at the sides near the base 3. 



Pronotum without yellow crossbands, but sometimes 

 with yellow, oblique bars on each side; not excavated at 

 the sides 5. 



3. Second joint of hind tarsi without hairs at the middle; 

 antennas of male longer than the body; velvety black; 

 head, pronotum, and elytra with narrow, yellow cross- 

 bands, the third one from the base of the elytra W-sh'aped, 

 the three behind it sinuous; length .5 to .8 in. Larvae 

 bore in hickory and elm. Adults in spring and early 

 summer Cyllene carycB (also called piclus). 



Second joint of hind tarsi densely pubescent; antennas 

 not longer than the body 4. 



4. Closely resembles C. cary. Larva? bore in black 

 locust (Robinia). Adults in late summer and fall. (Plate 

 LXXXI) Cyllene robinia. 



Basal third of elytra orange yellow, remainder black 

 except for a yellow band behind the middle, and yellow tip ; 

 pronotum yellow, with three short, narrow, black cross- 

 bars. A southern and western species Cyllene decorus. 



5. Antennas compressed, somewhat serrate; black, dense 



346 



