692 BOSTON JOURNAL 



Body black : thorax with a short line before the wings and 

 wing-scale yellow : wings hyaline, with a slight dusky tinge ; ner- 

 vures blackish ; stigma rufous at the stricture ; second cubital 

 cellule quadrangular, somewhat oblique, meeting the radial cel- 

 lule in an angle : abdomen almost sessile : tergum with the first 

 segment excavated near the base ; densely punctured; all the seg- 

 ments with narrow, white posterior margins; oviduct exserted, 

 short, hardly half the length of the abdomen : feet honey-yellow ; 

 posterior pairs with the knees, tips of the tibiae and each tarsal 

 joint black. 



Length over half an inch. 



'J, Hind pair of feet with an annulus on the tibiae and base of 

 each tarsal joint white. 



The male is much smaller than the female. I obtained a fe- 

 male from a follicle of the common follieulate [236] Linnaean 

 Bomhijx, with transparent wings, which were extremely abun- 

 dant a few years since in Maryland, causing much apprehension 

 for the safety of the trees of their choice. Some of them were 

 obtained for me by my friend Mr. Gilliams, for examination, 

 when I described them under the name of hyaUna, but did not 

 publish the account. 



10. C GRALLATOR. — FcrruginouS; with black sutures and 



wings. 



Inhabits Indiana. 



Body ferruginous : head slightly yellowish on the orbits : man- 

 dibles black at tip : antennae dusky, before the tip yellowish : 

 thorax with two obsolete, parallel, yellowish lines ; sutures before 

 the wings and scutel black : wings violaceo-fuliginous ; nervures 

 blackish ; stigma ferruginous ; second cubital cellule rather large, 

 pentangular, the side of the radial cellule much the smallest ; 

 two bullae and recurrent nervures each with one : metathorax 

 with the sutures black; scutel rounded : abdomen clavate, falcate, 

 gradually narrowed to the base, somewhat polished ; posterior 

 margins of the segments obsoletely yellowish ; base of the seg- 

 ments or incisures black : pleura and pectus with black sutures ; 

 separating suture between the pleui'a and metathorax black, in- 

 cluding a yellow line : oviduct as long as the abdomen; posterior 



[Yol. I. 



