tZl BOSTON JOURNAL 



coxje : coxfe with a small, acute tubercle before : tarsi, terminal 

 joint dusky. 



Length about one-fifteenth of an inch. 



I observed a number of the pupa3 of this insect, congregated 

 together on the under side of a leaf of the buttonwood [Platanus 

 (iccidcnfalis L.) They were of a blackish color, and adhered to 

 the leaf in a vertical [274] posture, by the extremity of the ab- 

 domen. Came out last June. 



This is much like E. damicornis Kirby, which, however, has 

 fi shade in the middle of the wings ; antennre not shaded in the 

 middle, and the posterior thighs of the female are dusky in the 

 middle. I have five females, but not one male. 



The last joint of the antennae is evidently divided into three 

 segments. 



3. E. niRClNUS. — Black, with sparse, long hairs ; feet and base 

 of the tergum yellowish. 



Inhabits Indiana. 



Body black : antennae yellowish ; terminal joints dusky : mouth 

 yellowish : thorax, head and wings at base, with long sparse 

 hairs : wing-scale honey-yellow : tergum on the basal disk yellow- 

 ish : feet, including, the coxeb, pale yellow: venter on the disk 

 yellowish. 



Length over one-twentieth of an inch. 



Quite distinct from the preceding by the long hairs of the 

 head and thorax. 



PERILAMPUS Latr. 



P. PLATIOASTER. — Blackish; face impunctured. 



Inhabits Indiana. 



Body brassy-blackish, punctured : head polished, impunctured 

 before : occiput somewhat lineated transversely ; before the eyes 

 a little punctured : thorax with a glabrous, polished line each 

 side : scutel short, obtuse, rounded, slightly emarginate at tip : 

 wings hyaline ; nervures brown ; tergum quadrate, angulated 

 each side, simply arcuated above, shining blackish : feet blackish, 

 with a tinge of green : tarsi yellowish. [275] 



Length about three-twentieths of an inch. 



Differs from P. hijaJinus nob. by color; and in that species the 



[Vol. I. 



