NO. 2035. ^EW HYMENOPTERA FROM NORTH AMERICA— G AH AN. 435 



Three specimens (two females and one male) from the type-locality, 

 reared by C. N. Ainslie and recorded under Webster No. 8840, Bureau 

 of Entomology, United States Department of Agriculture ; also four 

 specimens in the United States National Museum, labeled, "273° 

 Par. on Meromyza americana, James Fletcher, Col. at Ottawa, July 

 21, 1899". 



Superfamily CHALCIDOIDEA. 



Family PTEROIVIALID^. 



PTEROMALUS EURYMI, new species. 



Female. — Compared with P. puparum, this species is larger, more 

 robust, the abdomen short ovate, very slightly conical, not as long as 

 the thorax, its first dorsal segment comprising half its total length and 

 the legs, except their coxae, reddish testaceous 



Head distinctly wider than the thorax, strongly and closely punc- 

 tate, the clypeal area aciculate-striate ; seen from above, the head is 

 distinctly more than three times as broad as long, the occiput a little 

 concave, the ocell-ocular and postocellar lines nearly equal. Thorax 

 punctured like the head, except that the punctures on the dorsal 

 aspect of the prothorax are tlistinctly coarser; apical one-fourth of 

 the mesoscutellum with a slightly different sculpture from the 

 remainder, the line of demarcation appearing as an indistinct trans- 

 verse furrow before the apex; propodeum without median carina, 

 but with the lateral folds ver}^ distinct, strongly punctate, except the 

 region outside the spiracular sulci, which is more faintly sculptured 

 and somewhat shining; neck of the propodeum about half the length 

 of the hind coxae, the punctures of the dorsal surface larger and not as 

 deep as those on the rest of the propodeum. Wings hyaline, the 

 venation typical. Abdomen smooth and polished, broader than the 

 thorax, and only slightly longer than broad. 



Color aeneous ; face below antennae blackish ; scape, mandibles, and 

 legs, except coxae, testaceous; the apical tarsal joints brownish; 

 antennal pedicel and flagellum brownish black; all coxae concolorous 

 with the thorax; base of first dorsal segment brassy, remainder of 

 the first segment and the venter metallic blue-green, dorsal segments 

 beyond the first blackish in some lights. 



Hale. — Similar to the female in sculpture, but much more highly 

 metallic in color and with the antennal pedicel and flagellum testa- 

 ceous, like the scape. 



Type-locality. — Tempe, Arizona. 



Type.— C&t. No. 16353, U.S.N.M. 



Host. — Eurymus eurytheme. 



