ART. 3 SOME NEW CHALCID-FLIES TIMBERLAKE 33 



pin punctures; mesoscutum almost as coarsely reticulate as the ab- 

 domen, the scutellum sculptured as in the female. Pubescence on 

 the face and cheeks more abundant and conspicuous than in the 

 female, yet rather sparse. 



Coloration similar to the female, but the head is brighter green 

 with a more brilliant luster, the face bright blue-green, the fronto- 

 vertex with a variable reddish and golden luster; tegulae, pro- 

 podeum and under parts of thorax shiny fuscous or black; scape 

 about yellow ocher (Ridgway), the pedicel and flagellum pale 

 brown; legs nearly uniformly yellow, about yellow ocher of Eidg- 

 way, the middle coxae fuscous except at apex, the front tarsi slightly 

 dusky, the last joint of middle and hind tarsi fuscous; wings as in 

 the female, but with the banding much fainter although distinct. 



Length of body, (1.22 to) 1.53; length of head, 0.438; width of 

 liead, 0.492; thickness of head, 0.283; length of antenna, 1.13; Vv^dth 

 of mesoscutum, 0.433; length of fore wing, 1.33; width of fore 

 wing, 0.558 mm. 



Described from three females and one male (holotype female, 

 allotype, and paratypes) reared from Trionymus utahensis (Cock- 

 erell) on Elyinus^ Salt Lake City, Utah, August 24 to September 20, 

 1915 (Timberlake) ; two males (paratype) from the same host and 

 locaHty, April 13, 1911 (C. N. Ainslie), Webster No. 6650; one 

 male (paratype) presumablj'^ from the same host on Elymus con- 

 densatus, Kimballs, Utah, August 13, 1912 (C. N. Ainslie), Webster 

 No. 8823; four females (paratypes) from Tower City, North Dakota 

 (G. I. Reeves), Webster No. 2559; and one female (paratype) reared 

 from a mealy bug on Elymus at Tabor, South Dakota, August 8, 

 1913 (C. N. Ainslie), Webster No. 11801. 



The females are all brachypterous except two from Tower City, 

 North Dakota, and one of these has the fore wings very short, 

 although the hind wings are fully developed. The males are all 

 macropterous. 



Another female reared by C. N. Ainslie from the same host at Salt 

 Lake City, Utah, in September, 1912, apparently represents another 

 species of Blayridia, as the head is much thinner and more obliquely 

 inclined. 



Type.— C2it. No. 28147, U.S.N.M. 



