460 PROCEEDINGS OF THE NATIONAL ilUSEUM. vol. r,3. 



AENOPLEX PLESIOTYPUS Cushman. 



By recent rearings the range of this species is extended to include 

 Wenatchee, Washington, and Vienna, Virginia, the former record 

 by Mr. E. J. Newcomer and the latter by the present writer. All 

 of the new specimens, two males and a female from Washington and 

 one male from Virginia, are from the type host, Carjwcai^sae pomoneUa. 

 The only character employed in the original description to distinguish 

 plesiotypus from hetulaecola Ashmead that holds in the light of these 

 new specimens is the form of the areola, and it is doubtful if the two 

 are really distinct species. One hesitates, however, to synonjTnize 

 the two because of biological differences, hdvlaeccla having been 

 reared only as a gregarious parasite of a noctuid, Apatda hetulae, 

 and plesiotypus only solitarily from the tortricid, Carpocapsa pomo- 

 nella. In plesiotypus the temples are slightly less strongly rounded 

 and the ocelli slightly smaller than in hetulaecola, though both of these 

 characters show some variation. 



The male differs from the female principally in its somewhat 

 coarser scidpture, narrower first tergite with stronger dorsal cari- 

 nae, stouter tapering flagellum, and in having the scape beneath, 

 the front and middle coxae, and all the trochanters white to stra- 

 mineous ; one has the hind coxae piceous above. 



AENOPLEX NIGROSOMA, new species. 



Female. — Length, 7.5 mm.; antennae, 4.5 mm.; ovipositor, 3.5 

 mm. 



Head swollen, granularly subopaque, minutely but distinctly 

 punctured; temples rounded, slightly sloping; cheeks strongly 

 rounded; malar space shorter than basal width of mandibles; anten- 

 nae but little more than half as long as body, 24-jointed. Thorax 

 dorsally sculptured like the head, laterally polished, longitudinally 

 striato-punctate; notauli rather weak; propodeum transversely 

 striate, rounded above, nearly perpendicular behind, carinae strong, 

 strongly mucronate at upper hind angles, areola about as long as 

 wide, half as wide at base as at apex, petiolar area somewhat concave; 

 legs rather slender, the inner spur of hind tibia barely one-third 

 as long as basi tarsus. Abdomen about one-third longer than head 

 and thorax, three basal tergites granularly opaque, apical tergites 

 polished; first tergite nearly four times as wide at apex as at base, 

 the dorsal carinae strong and extending nearly to the apex; ovipositor 

 nearly as long as abdomen. 



Black; mandibles piceous, maxillary palpi black at base, with 

 three apical joints pale; legs reddish testaceous, front pair slightly 

 the palest, hind tibiae at apex and their tarsi infuscate; wings irri- 

 descent, very slightly brownish stained, veins and stigma dark brown, 

 wingbase white. 



