720 BOSTON JOURNAL • 



behind and by a slender transverse line at the suture of the first 

 segment, on which the lines do not extend : scutel with a longi- 

 tudinal black line : metathoras, excepting at base, black : abdo- 

 men, petiole black, about one-third as long as the abdomen : ter- 

 gum moderately arcuated ; each segment having a black band : 

 pleura black, about four yellow spots : posterior pair of feet with 

 their coxae at tip, maculated band, inferior edge and tip of the 

 dilated thighs, tip and base of the tibiae, black ; the thighs are 

 about the size of the abdomen, with six or eight large prominent 

 black spines, the superior one divided into three or four. 



Length less than one-fifth of an inch. 



A very handsome species; I obtained it from the pupa of a 

 Tlicda. 



2. C. DEBILIS. — Dull honey-yellow ; anterior pair of feet 

 whitish. 



Inhabits Indiana. 



Front yellowish towards the mouth ; a black line from the an- 

 tennae to the vertex : antennae dusky, paler beneath : thorax 

 punctured, with three black vittae ; scutel with a black line : be- 

 neath the petiole are two whitish spines : petiole as long as the 

 posterior coxae, blackish, whitish at the tips : abdomen polished^ 

 the incisures blackish; thighs nearly equal to the abdomen; tibiae 

 whitish, blaclvish in the middle ; tarsi white. 



Length three-twentieths of an inch. [272] 



EURYTOMA Illig. Latr. 



1. E. ORBICULATA. — Blackish; feet, excepting the middle of 

 the thighs, yellowish. 



Inhabits Indiana. 



Body brassy-black, reticulate with punctures : antennae, first 

 joint honey-yellow : scutel obtusely rounded at tip : suture at its 

 base not dilated : wings hyaline ; nervures brown, branch of the 

 radial nervure not longer than the part that extends beyond it 

 on the edge : abdomen in profile almost orbicular, glabrous, 

 polished ; petiole punctured, longer than the posterior coxae and 

 trochanters : feet honey-yellow : thighs, excepting at their origin 

 and extremity, black. 



Length less than one-tenth of an inch. 



The joint of the antennae are unequally gibbous. 



[Vol. I. 



