THE LONG-HORNED WOOD-BORJNG BEETLES. 



1033 



g. Thorax with short, transverse dorsal raised lines or ridges. 



XXXII. Neoclytus. 



gg. Thorax without transverse ridges. 



h. Episterna of metathorax narrow. XXXIII. Clytanthus. 

 hh. Episterna of metathorax wider. Clytus. 

 ee. Elytra swollen on basal third ; small, ant-like species, not over 10 mm. 

 i. Elytra without a transverse oblique, ivory-like band. 

 j. Eyes oblique, emarginate. 

 k. Second joint of antennas as long as fourth; antennas without 

 spines. Microclytus. 

 JcJc. Second joint of antennas distinctly shorter than fourth ; third 

 joint with a spine. XXXIV. Cyrtophorus. 



jj. Eyes rounded, entire. Tii.lomorpha. 

 it. Elytra each with a transverse, oblique, ivory-like band. 



XXXV. EUDERCES. 



XXVII. Cyllene Newm. 1840. (Gr., the name of a mountain in 



Greece. ) 



Medium-sized robust species having the body densely clothed 

 with short prostrate hair. In our species the thorax and elytra are 

 conspicuously banded with yellow. Three of the five known species 

 occur in the State. 



KEY TO INDIANA SPECIES OE CYLLENE. 



a. Second joint of hind tarsus glabrous at middle ; antennas of male longer 

 than body; prosternum between the coxas longer than wide. 



1910. PICTCS. 



aa. Second joint of hind tarsus densely pubescent; antennas not longer than 

 body. 



&. Basal third of elytra with three narrow yellow bands, the hindmost 

 . one W-shaped; prosternum as wide as the coxal cavity. 



1911. ROBINLE. 



M. Basal third of elytra orange yellow ; prosternum not as wide at mid- 

 dle as coxal cavity. 1912. decorus. 



1910 (6170). Cyllene pictus Drury, Ins., II, 1773, 91. 



Elongate, rather robust. Velvety black ; head, thorax and elytra with 

 narrow yellow crossbands, the third one from base of elytra W-shaped the 

 three behind it sinuous ; legs reddish-brown. Thorax wider than long, sides 

 rounded. Prosternum longer than wide, truncate at tip. Elytra tapering 

 behind the middle, obliquely truncate at tip but not prolonged.' Length 12- 

 20 mm. 



Southern half of State; frequent. April 18-April 28. Occurs 

 on elm and hickory logs in spring. The larva? bore in the wood of 

 these trees and are often very destructive to the hickory. 



