524 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.55. 



Genus AENOPLEX (Foerster) Ashraead. 



AENOPLEX POLYCHROSIDIS, new species. 



In my key to the North American members of the genus ^ this 

 species runs closest to plesiotypus Cushman, but is markedly distinct 

 from that species in color. In this respect as well as in general 

 habitus and length of ovipositor, it is much more like caryocapsae 

 Cushman. 



Female. — Length, 4.5 mm. ; antennae, 3 mm. ; ovipositor, 0.75 mm. 

 Differs from carpocapsae Cushman principally as follows : Sculpture 

 throughout much finer, that of head and mesoscutum opaque, granu- 

 lar rather than punctate; clypeus polished, impunctate; notauli 

 weak; areola nearly twice as long as wide, but little wider behind, 

 petiolar area slightly longer than wide ; abdomen subopaque granular 

 basally, polished apically; first tergite with distinct dorsal carinae 

 extending beyond the middle; ovipositor about a third as long as 

 abdomen. 



Black, with three basal abdominal segments, legs entirely, and two 

 basal segments of flagellum testaceous; mandibles, scape, pedicel, and 

 third flagellar joint piceous; antennae otherwise black; palpi strami- 

 neous; tegulae whitish. 



Male. — Length, 5 mm. ; antennae, 3.5 mm. Differs from female in 

 having the sculpture of thorax and abdomen stronger ; notauli more 

 distinct ; flagellum entirely black, as is also the basal segment of the 

 abdomen. 



Host. — Polychrosis viteana demons. 



Type-locality. — North East, Pennsylvania. 



Type.— Cat No. 21629, U.S.N.M. 



Described from one pair reared April 11, 1917, in a greenhouse at 

 Washington, District of Columbia, from cocoons of the host collected 

 in October, 1916, at the type-locality. 



(PHYGADEUON) AENOPLEX PHRYGANIDEAE (Aslimead). 



A female and three males of this species have recently been re- 

 ceived. These were all reared by F. B. Herbert, of the Bureau of 

 Entomology, from the same host as the type material, Phryganidea 

 californica., on which they were secondary through Itoplectis heh- 

 rensi (Cresson). Examination of the host remains from which the 

 type male was reared show it to have had the same relation to the 

 Phryganidea. The new specimens were reared under Hopkins U. S. 

 No. 14488 g and 14488 d^% at Palo Alto, California. 



The following description is drawn from the types and the new 

 specimens : 



In my key to the species of Aenoplex runs on the subopaque, finely 

 punctured mesoscutum to nigrosoTna Cushman but differs in having 



1 Proc. U. S. Nat. Mus., vol. 53, 1917, p. 458. 



