418 DESCRIPTIONS OF ICHNEUMONID.E ASHMEAD. 



thighs sometimes black, all coxa? black. The head and thorax are 

 smooth, polished, the parapsidal grooves slightly indicated anteriorly ; 

 clypeus, mandibles, and palpi yellow-ferruginous ; tegula? whitish. 

 Abdomen piceo-black, the petiole aud apex black, the base of the sec- 

 ond and third segments yellow testaceous ; the petiole is linear, about 

 four times as long as thick, the spiracles placed anteriorly about one- 

 third its length. Wings hyaline, iridescent ; stigma and veins brown, 

 the first branch of the radius not half the length of the first branch of 

 the postmargiual vein. 



Habitat. — Alameda, California. 



Described from three females, one male specimen, reared in May, 

 1887, from a Rose gall ; received from Mr. Albert Kcebele. 

 Orthopelma coloradense sp. nov. 



Female. — Length 4 mm ; ovipositor 1.4 mm ; black, polished; thorax punc- 

 tate, the parapsidal grooves slightly iudicated anteriorly and between 

 them a short median line. Legs ferruginous, the posterior pair dark- 

 brown or black, the femora black ; tegula? aud costa? yellow ; abdomen 

 black or piceo-black ; the base of second segment and apex of all the 

 segments narrowly flavo-testaceous ; wings hyaline, iridescent ; stigma 

 aud veins brown; the first branch of the radius is more than half the 

 length of the first branch of the postmarginal. 



Habitat. — West Cliff, Custer County, Colorado. 



Described from one specimen, received from Mr. T. D. A. Cockerell. 



Orthopelma diastrophi sp. nov. 



Male and Female. — Length 4 min ; ovipositor l.G mm . Head and thorax 

 black, shining, punctate; legs, including all coxa?, and abdomen, ferru- 

 ginous; base of second segment and all the sutures testaceous, the 

 apex more or less dusky, the petiole black. , 



Antenna? female 22-jointed, dark-brown, the three basal joints paler ; 

 clypeus, mandibles and palpi ferruginous; in eta thorax minutely rugose, 

 areolated; petiole linear, nearly five times as long as thick, spiracles 

 placed before the middle; wings hyaline, iridescent; stigma and veins 

 brown, first branch of the radius about two-thirds the length of first 

 branch of the postmarginal. The male has very long, 25-jointed 

 antenna?, the two basal joints ferruginous. 



Habitat. — Probably Missouri, and Waterbury, Connecticut. 



Described from four specimens in Riley collection, also from several 

 specimens in my collection reared by Mr. H. F. Bassett, from galls, Dias- 

 trophus radicum Bass., at Waterbury, Couu. 



ISCHNOCERUS Gravenhorst. 

 Ischnocerus montanus sp. nov. 



Female. — Length 7 mm ; ovipositor 1.8 mm ; black, sparsely covered with 

 a short, white, glittering pubescence; head aud thorax opaque, minutely 

 sculptured 



