THE LONG-HORNED WOOD-BORING BEETLES. 



1063 



and sometimes in twigs of apple. The adult is called the ''currant 

 tip borer ' ' and is often beaten from the flowers or foliage of the 

 various species of red-haw (Crataegus) and other shrubs. 



Tribe III. MONOHAMMINI. 



In this group of genera the front is large, vertical, quadrate, 

 flat; eyes somewhat iinely granulate, emarginate; antenna; longer 

 than body, very long in male, except in Goes and Cacoplia, scape 

 rather stout; elytra narrowed behind or cylindrical; front coxal 

 cavities angulated. Five of the seven genera comprising the tribe 

 are known to be represented in the State, while a sixth probably 

 occurs. 



KEY TO INDIANA GENEBA OF MONOHAMMINI. 



a. Legs long, the front pair 'elongate in male; antennae much longer than 

 body. 



1). Thorax with spines on the sides. LI. Monohammus. 



hb. Thorax cylindrical without spines. 



c. Elytra rounded at tip ; black or grayish-brown. 



LIT. DORCASCHEMA. 



cc. Elytra pointed at tip ; color uniform ash gray. LIII. Hetcemis. 

 aa. Legs equal, not elongate. 



d. Scape of antennas with a distinctly limited cicatrix. 



e. Thorax cylindrical ; color gray. Cacoplia. 

 ee. Thorax with a spine each side ; color brown or gray. LIV. Goes. 

 dd. Scape of antenna? with the cicatrix not sharply defined ; thorax with 

 a strong lateral spine ; color black and white. LV . Plectrodeba. 



LI. Monohammus Serv. 1835. (Gr., " one + band or fetter.") 



Here belong large species with long legs, which occur upon pine. 

 The antenna? of the males are very long, quite roughly punctured 

 and without pubescence; those of females shorter, very much 

 smoother and clothed with a fine ash-colored pubescence on the 

 basal half of each joint from the third ; Except in confusor, in which 

 the whole of each joint is pubescent; thorax with a robust spine 

 each side. Two species and one variety have been taken in the 

 State, while another may occur. 



KEY TO INDIANA SPECIES OF MONOHAMMUS. 



a. Tips of elytra rounded, the sutural angle acute or projecting as a short 

 . spine. 



ft. Larger, 20-32 mm. ; elytra darker ; antenna? of male longer. 



1966. TITILLATOR. 



