NO. 2349. REVISION OF NE ARCTIC APANTELES—MVE8EBECK. 535 



The type and four paratypes of this species are in the United 

 States National Museum; the remaining paratypes are in the col- 

 lection of the Gipsy Moth Laboratory, Melrose Highlands, Massa- 

 chusetts. 



85. APANTELES COMPRESSIVENTRIS, new species. 



Female. — Length, 2.6 mm. Face impunctate and strongly shining, 

 a strong median ridge arising just below the insertion of the antennae, 

 and extending halfway to the clypeus; clypeus conspicuously sepa- 

 rated from the face; temples broad; vertex, temples, and cheeks, 

 impunctate, very shining ; mesoscutum weakly punctate and shining ; 

 disk of scutellum slightly convex, impunctate .and polished; meso- 

 pleura polished; propodeum very feebly punctate and strongly 

 shining, without an areola or any carinae ; metacarpus about as long 

 as the stigma, or only indistinctly longer ; radius of f orewing about 

 equal in length to the transverse cubitus and making a strong angle 

 with the latter; nervellus behind curving toward base of wing; 

 posterior coxae indistinctly punctate and shining; inner spur of 

 posterior tibiae distinctly longer than the outer, but hardly half 

 the length of the metatarsus; entire abdomen exceedingly strongly 

 compressed; first tergite very slender, narrowing gradually toward 

 apex, where it is much narrower than at base, distinctly more than 

 twice as long as broad at base, rather ruguloso-punctate laterally; 

 second tergite small, defined laterally by oblique grooves that diverge 

 posteriori}^, less than half as broad at base as long down the middle, 

 and slightly broader at apex than long down the middle, smooth and 

 polished medially; lateral membranous margins along the two basal 

 abdominal tergites broad; third and following tergites smooth and 

 shining; hypopygium extending a little beyond the apex of the last 

 dorsal segment ; ovipositor very slightly projecting. Black ; antennae 

 wholly black; tegulae and wing-bases dark brown; wings feebly 

 yellowish-hyaline, stigma and veins brown; all coxae black; pos- 

 terior trochanters brown; remainder of the legs dark reddish- 

 testaceous, except the apex of the posterior tibiae and the posterior 

 tarsi, which are fuscous; venter of the abdomen black; lateral mem- 

 branous margins along the two basal abdominal tergites testaceous. 



Male. — As in the female, except that the legs are somewhat more 

 dusky, the posterior femora being edged with blackish. 



T^/pe locality. — Mount Washington, New Hampshire. 



Type.— Csit No. 22532, U.S.N.M. 



//os^.— "Arctiid." 



Described from many specimens of both sexes. 



