1909] ROHWER— NEW CHRYSIDID WASPS 89 
Type locality: Florissant, Colo., June 23, 1907 (S. A. Rohwer). 
This species was sent to M. R. du Buysson who returned it labeled ‘“‘n. sp.,”’ and 
suggested I describe it. In Aaron’s paper on North American Chrysidee (Tran. 
Am. Ent. Soc. XXI, 1885, p. 233) this species runs to /auta Cresson, but the apical 
teeth are shorter and more obtuse than in that species, the facial quadrangle is dif- 
ferent, and it is much more pubescent. The dense hair of the facial basin reminds 
one of snow? Viereck, but that species has a shorter prothorax. It differs from tri- 
partita Aaron by the hyaline wings. 
Chrysis (‘letrachrysis) nokomis n. sp. 
Male: length 8 mm. Clypeus transverse; facial carina distinct and _ strong, 
bent in the middle; facial basin granular; malar space distinct, broad, about as long 
as the third antennal joint; third antennal joint very little longer than the fourth; 
orbital carina well defined; facial quadrangle very little narrower below. Head and 
thorax (the metathorax more coarsely so) punctato-granular. Pronotum shorter 
than the head; parapsidial furrows parallel; mesopleuree with a distinct, slightly 
oblique, somewhat foveolated furrow, the lower part of this furrow changes into a 
carina. ‘The radial cell is almost closed at the apex. The spines of the metathorax 
are large. The first two dorsal abdominal segments with distinct, rather large, 
separated punctures, the spaces between the punctures smooth; the third segment 
coarsely granular; the apical furrow not very deep; pits about six in number, most 
of them confluent; lower lateral margin of the third segment arched inwardly at 
about the middle. ‘The teeth long, apices rounded, the sides subparallel; the middle 
teeth much closer together than the middle and the outer ones, the area between 
them angulate; the area between the middle and the lateral teeth semicircular. The 
upper figure of fig. 76, pl. X, T'r. Am. Ent. Soe. XII is much like the teeth of noko- 
mis. Color dark purple with some green reflections; flagellum and tarsi black or 
brownish. ‘The entire insect clothed with long shaggy, gray hair. Wings hyaline, 
venation black. 
Female: The female differs from the male in having the third segment humped 
before the furrow; the apical teeth broader, triangular and bearing the same relation 
to the male as the female of propria does to the male according to Aaron’s figure; 
the hair is not as dense as in the male; the wings are slightly dusky; and the radial 
cell is a little more open at the apex. 
Type locality: The male, Denver, Colo.; the female Las V egas Na Mi (i Dike 
Cockerell). 
This species is superficially like nortont Aaron, but the teeth are very different, 
