12 HYMEXOPTERA. 



SO, nearly twice the size of the second funicle joint, which is small like 

 a ring-ioint and transverse ; funicle narrower than the pedicel and club 

 the second funicle joint distinctly longer and wider than the ring-joint, 

 but the whole small funicle barely longer than the proximal club joint. 

 Club ovate, somewhat broader than the pedicel, its proximal joint 

 obconical, truncate at apex, the intermediate joint slightly longer, 

 obliquely truncate, the widest point of the club being the line between 

 the first and second joints ; terminal joint conical, narrower, not end- 

 ing in a prominent spine. Pubescence more thick on the distal club 

 joint than elsewhere, there being somewhat grouped but not project- 

 ing, the broad setas appearing as longitudinal ridges or corrigations. 



From 16 specimens, 1-inch objective, 1-inch optic, Bausch 

 and Lomb. 



Male. — The same with the secondary characters as pointed out in 

 the generic description and with the seta of the terminal club joint 

 slenderer, more scattered and projecting beyond the tip but not in the 

 form of a spine. (Fig. 4, male antenna.) 



From 9 specimens, t-inch objective, 1-inch optic, Bausch 

 and Lomb. 



Described at first from two female specimens mounted in 

 balsam and captured on the panes of a window in an empty 

 pig-shed on a farm at Centralia, Illinois, August 25, 1909, 

 and from two male specimens in the collection of the United 

 States Department of Agriculture on two slides labelled as 

 as follows : "W. 3969. Trichograyyima sp. from jassid eggs. 

 Pullman, Washington." Sculpture and coloration from the 

 two females, taken when alive, partly stupefied with chloro- 

 form. I have since captured a single female on a window in 

 a stable at Litchfield, Illinois, July 13, 1910; and see beyond. 



Habitat. — United States : Centralia and Litchfield, Illinois ; 

 Pullman, Washington; Washington, D. C. 



Types. — Type Xo. 13^397, United States National Museum, 

 Washington, D. C, 6 cfs, 12 9 's in xylol-balsam (1 slide); 

 formerly in National Museum collection mounted on tags 

 and labelled " Trichogramma ? minuta Riley, Washington, 

 D. C." G?/;;/^<?5.— Accession Nos. /i, 683 (1 9 in xylol- 

 balsam, Centralia, Illinois, Aug. 25, 1909, Girault ; mounted 

 with a single female of Pentarthron minutum Riley), 4-f,163 

 (1 9 in xylol-balsam, Litchfield, Illinois, July 13, 1910, 

 Girault) and H,164- (1 d^ in xylol-balsam, Pullman, Wash- 



