254 HYMENOPTERA. 



identical with European forms but so far the evidence seems 

 to indicate that our fauna as represented by members of this 

 family is quite distinct from that of other continents. 



Family MYMARIDtE. 



Subfamil}' Gonatocerin^. 



Tribe Ooctonini. 



Genus OOCTONUS Haliday. 



1. Ooctomis longipes Ashmead. 



As shown beyond, this species is a Poly?iema ; there are 

 no valid species of this genus in North America. 



Genus CAMPTOPTERA Foerster. 

 1. Camptoptera piilla Girault. 



An additional female specimen of this extremely small 

 mymarid was taken from the window of a horse stable at 

 Litchfield, 111., July 13, 1910. 



Tribe Gonatocerini. 

 Genus GONATOCERUS Nees. 



1. Gonatoceriis dolicliocerus Ashmead. Ashmead, 1887, p. 192. 



Normal position. 



Female. — Length, 1.50 mm. Large for the genus. General color 

 dark brown, the abdomen lighter at base and at the incisions of the 

 abdominal segments giving it a striped appearance, the legs and an- 

 tennae concolorous but of the former, the trochanters, both ends of the 

 femora and tibiae are lighter, pallid yellowish and the cephalic legs and 

 tarsi are lighter throughout but not as light as the trochanters and tips 

 of femora and tibise ; distal tarsal joint concolorous with thorax or the 

 femora and the fourth tarsal joint somewhat darker than the others. 

 Venation about concolorous with the general body color ; antennae 

 uniform in color. Fore wings uniformly distinctly, though lightly, 

 fumated from the apex proximad nearly to the end of the long mar- 

 ginal vein (or practically the whole blade distad of the venation) . 

 Posterior wings hyaline. Eyes dark. 



Fore wings moderately broad, regular in shape, the margins of the 

 blade about parallel, the apex regularly rounded, broadest at the base 

 of the distal fourth, more than half the distance from apex of venation 

 to the apex of the blade ; the edges of the blade dusky along the distal 

 half; fore wings about three and one-half times longer than broad, 

 their discal ciliation uniform, moderately dense (estimated about from 

 25 to 30 longitudinal lines across the widest portion of the blade), ex- 

 tending proximad to base of marginal vein. Marginal ciliation of 

 the fore wing usual but short, the longest not half the length of the 



