10 



furnished the very conditions most favorable for this wood-borer, as 

 similar injuries do for many other wood-boring insects. 



HISTORY OF THE SPECIES. 



Brief reference to the work of the Oeresa in orchards have been made 

 by various western entomologists, but no general account of it has 

 appeared in any publication accessible to fruit growers. Its habits 

 were first correctly described in an article by the writer in the Trans- 

 actions of the Kansas Academy of Sciences for 1886 (pp. 84-85), and 

 the same year Mr. John G. Jack gave a brief account of it in the 



Fig. 5. — Cerena taurina Fitch: a, adult female, dorsal view; 6, one-half lateral view of same; c, 

 ventral view of tip of female abdomen with last ventral arc still more enlarged at side; d, lateral view 

 of same; e, antenna; /, portion of hind tibia — all enlarged (original). 



Canadian Entomologist (vol. xviii, p. 51). Accounts purporting to be 

 of the habits and life-history of Ceresa bnhalus were published by Dr. 

 Fitch and later by Dr. Riley, but in both instances an entirely distinct 

 insect had been studied. Dr. Fitch, in his Twelfth Annual Eeport 

 (1807, p. 889), described very elaborately the eggs of the common snowy 

 tree-cricket {(Ecanthus niveus Serv.) as the eggs of the buffalo tree- 

 hopper, and Dr. Riley, in his Fifth Missouri Report (1873, p. 121), takes 

 Dr. Fitch to task for this mistake, and proceeds to describe what he 

 supposed to be the eggs and early stages of huhalus, again, however, 

 having a totally distinct insect under observation. In the latter case 



