OF WASHINGTON. 



89 



the Museum, in connection with Fitch's own types, and some ex 

 aminations of the last ventral segment that have been made for 

 me by Mr. Ashmead, explain the apparent discrepancies, and 



FIG. 6. Ceresa taurina Fitch : a, adult female, dorsal view; b, 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 ; f, portion of hind tibia all enlarged from Insect Life. 



the insect which I reared is in reality Fitch's taurina and not the 

 typical bubalus* The latter is a larger insect, with broader 

 body and especially with broader prothoracic parts and more 



FIG. 7. Ceresa taurina Fitch: a, sinele egg-puncture enlarged; 

 6, row of punctures in twig, natural size (after Riley). 



prominent prothoracic horns. The last ventral segment has 

 a distinct, simple, median, rather acute notch, and is very 

 little longer than the two preceding segments united, the 



