110 FAMILY EVANIID^. 



men black, second and third segments tipjied witli rufons; a rufous spot on each 

 side of the third segment and ventrally ; abdomen much compressed, smooth and 

 with a dull, not silky lustre. 



% . — Similar to female, but slightly more pubescent and punctations generally 

 a little larger. 



The description applies to the race ineertus. 



Tlie races montanus and ineertus merge one into the other. Mon- 

 tayius has much more red on the abdomen, violaceous wings, and 

 very frequently the under side of the middle and posterior legs I'ed. 

 It seems to be more common in Nevada, and to extend eastward 

 into Colorado (West Cliff), and northward into Oregon (Mt. Hood) 

 and Washington. Ineertus is the common form in Colorado (type 

 locality) and is also recorded from New Mexico (Beulah, August 

 17th, Dr. Skinner; July 11th, T. D. A. Cockerel!), from Oregon 

 (Mt. Hood), and from Washington. Further east it occurs in 

 Canada; New Hampshire; Massachusetts; Pennsylvania (Castle 

 Rock, Dr. Skinner), and Virginia. 



The eastern specimens seem to differ slightly from the western ; 

 they usually have a white base to their posterior tibise, while in 

 western individuals the tibiae are usually entirely black. 



Fcenu»i niicriira KiefTer. 

 1903. Gasteruption micrura KiefTer, Ark. f. Zool. i, p. .556. 



9 . — 10 mm. Black. Head opaque, very finely sbagreened ; eyes short, hairy ; 

 occiput nearly semicircular, slightly less than lialf the length of the eye; poste- 

 rior margin simple, weakly concaved ; posterior ocelli somewhat more widely 

 separated from each other than from the compound eyes; cheeks very short, 

 shorter than the second anteniial segment; antennse dark brown, paler at the 

 apex ; the second segment longer than thick, two-thirds as long as the third ; the 

 fourth a little longer than the third. 



Thorax dark red ; neck and upper side of the thorax almost black ; neck short ; 

 pronotum with an indistinct tooth on the anterior angles; medial mesothoracic 

 lobe thickly, ratlier finely transversely rugose-striate, the lateral and posterior 

 parts of the mesonotum leather-like, as also the scutellum, and the propleurse 

 and mesopleura; propodeum reticulate. Wings hyaline; posterior wings with 

 three costal hooks, without cells; coxaj and legs brownish yellow; posterior legs 

 darker, the base of their tibiae white ; posterior coxse transverse-striate; metatar- 

 sus as long as the four following segments united. Apical third of the second, 

 third and fourth abdominal segments yellowish-ied ; ovijjositor scarcely longer 

 than the petiole; vagina; entirely black, their apex weakly spindle-sliapcd. 



Male similar to the female. 



The description is translated from Kieffer. 

 The color of the thorax is usually entirely black. 

 Type locality, Illinois. I have seen specimens from New Hamp- 

 shire (New Glenn Hou.se,White Mtns.) ; Massachusetts and Virginia. 



