702 BOSTON JOURNAL 



tip and base ; posterior tarsi black, base of the first joint white, 

 in the male the white of the posterior tibia; is less obvious. 

 •Length from one-fourth to three-tenths of an inch. 

 I obtained a specimen from a very pretty cocoon which is 

 somewhat cylindric, white, with two maculated black bands. 



AC^NITUS Latr. 



1. A. DECORUS. — Black varied with whitish ; posterior tarsi 

 whitish. 



Inhabits Indiana. 



9 Body black : orbits white, interrupted above and before : 

 hypostoma white, nasal sutures black eaeli side : mandibles black : 

 antennai with ten or twelve white joints beyond the middle : tho- 

 rax with the line over the wings, wing-scale, line before the 

 wings, and lateral and posterior margin of the anterior lobe white : 

 scutel white : wings hyaline, with a rounded fuscous spot at tip : 

 metathorax, a small spot under the scutel and behind whitish : 

 abdomen, posterior margins of the segments white ; in profile 

 clavate ; dorsal view fusiform : venter white ; scale prominent, 

 acute : oviduct much longer than the abdomen : pleura varied 

 with yellowish : feet honey -yellow : posterior pair of coxae with 

 three large yellow spots ; incisures of the posterior thigh black ; 

 posterior tarsi whitish. [249]] 



Length nearly three-fifths of an inch. 



% Orbits white uninterrupted : thorax more variegated with 

 white; antennae with about eight white joints: scutel with a 

 black disk, the white margin extending forwards in the form of 

 a V : metathorax black varied with white, spines prominent : 

 tergum, first joint on the lateral margin white as well as the tip : 

 second segment with a much arcuated line each side of the mid- 

 dle, curving forwards ; remaining segments with the posterior 

 margins dull whitish ; venter blackish, somewhat banded; pleura 

 whitish, with a black line under the wings ; anterior portion 

 black with white lines; pectus pale honey-yellow; coxeb, poste- 

 rior pair with a black line. 



Length nine-twentieths of an inch. 



This is a very prettily variegated species. 



[Vol. L 



