36 AMERICAN HYMENOPTERA. 



chusetts Agricultural College collection — from the Gypsy 

 Moth Laboratory in Maiden — emerged, according to the 

 label, from a promethea cocoon. This, however, seems 

 doubtful, and can not be accepted without further evidence. 

 It has been frequently reported as parasitic upon Lachnos- 

 terna fusca, and its activities may account for these insects 

 not becoming more serious pests. The cocoon is about a 

 half inch long by a quarter thick in the middle, made of dull 

 gray silk, frequently darker towards the ends, and thus form- 

 ing a median band of lighter color. 



Hosts. 

 Lachnosterna fusca Froh. ; Riley, Proc. Ent. Soc. Wash., II, p. 



134 1892. 



Callosamia promethea Drury, noted above. 



Location of specimens. — Colorado State College, Leland 

 Stanford University, Iowa State College, Illinois State Col- 

 lege, Massachusetts Agricultural College, Minnesota Agri- 

 cultural College, Montana Agricultural College, New York 

 State Museum, American Entomological Society, U. S. Na- 

 tional Museum. In the U. S. National Museum from Canada ; 

 Hartford, Conn. (May 30); New York ; Pennsylvania; Vir- 

 ginia ; Colorado ; Missouri and Texas. 



Ophion abnorinis inagfniceps n. subsp. 



Flavous to dark fulvous, varied with ferruginous ; head large ; eyes 

 small, distant from base of mandibles ; discocubital vein biangularly 

 broken, and appendiculate , the appendix or its rudiment directed down- 

 ward ; stigma and costa flavous bordered with black below, nervures 

 black ; veins enclosing the cell thickened, those at the apex very slender. 



Length, 12-16 mm. ; wing, 11-13 mm. ; spread, 24-28 mm. ; antennae 

 (missing). 



Flavous to dark fulvous, varied with ferruginous ; smooth and shining, 

 with fine short pubescence ; head large, face broad ; ocelli medium to 

 small, distant from the tops of the eyes ; eyes small, narrow, only 

 slightly emarginate, distant from the base of the mandibles ; antennae 

 fulvous, probably shorter than the body ; clypeal foveae deep ; mandi- 

 bles bidentate, tipped with black. 



Thorax smooth and shining ; mesonotum with more or less distinct 

 ferruginous stripes, metathorax smooth or very finely punctured, with 

 indistinct carina?. 



