AKT. 13 DESCEIPTIONS 0¥ ICHITEUMON'-rLIES CUSHMAN 5 



One specimen taken from the stomach of a ruffed grouse and 

 received from the Biological Survey, United States Department of 

 Agriculture. 



ISCHNUS DODDI, new species 



In Schmiedeknecht's key to genera of Cryptini this species runs 

 with no difficulty to {Habi'ocryptus Thomson) =/s(?A?^^is Graven- 

 horst; and, except for its rather large oval propocleal spiracle, rela- 

 tively shorter first flagellar joint, and narrower abdomen with 

 relatively long apical tergites, differs structurally in no significant 

 way from the genotype, Ischnus 'porrectorius (Fabricius). 



Female. — Length 11 mm. ; antennae 8 mm. ; ovipositor 6 mm. 



Head transverse; eyes large and slightly bulging; temples sharply 

 receding and rather weakly convex; vertex and frons densely, finely 

 punctate, temples sparsely punctate; eyes slightly longer than width 

 of face, parallel within; face densely punctate, medially elevated, 

 with a longitudinal impression on each side of the elevation; clypeus 

 in profile nasutif orm ; cheeks convex ; malar space two-thirds as long 

 as basal width of mandible; antennae slender, basal joint of flagel- 

 lum only slightly longer than second joint. Thorax opaque, finely 

 confluently punctate; pronotum laterally rugulose, epomia strong; 

 notauli long, foveolate; scutellum polished, very weakly punctate; 

 sternauli weak, speculum small, shining, obliquely roughened; meso- 

 pleural furrow foveolate; propodeum rather coarsely reticulate 

 rugose behind the basal carina, more finely so in front, the sculpture 

 merging laterally into that of the metapleurum ; basal carina strong, 

 apical carina developed only laterally ; all longitudinal carinae, includ- 

 ing the pleural, wanting ; spiracle rather large, oval ; legs and wings 

 normal for the genus. Abdomen elongate lanceolate, first three ter- 

 gites granularly opaque; first tergite more than twice as long as 

 broad at apex, second much longer than broad at base, postpetiole 

 broader than long ; ovipositor nearly as long as abdomen ; apex elon- 

 gate sagittate. 



Head and thorax black with the following whitish markings; 

 orbits, broadly on cheeks and narrowly interrupted on malar space, 

 small spots on clypeus and at base of mandible, incomplete annulus 

 on flagellar joints 6-9, anterior and humeral margins of pronotum, 

 tegula at base and apex, subalar tubercle, and scutellum except at 

 apex; wings hyaline with blackish venation, the stigma pale at base; 

 legs ferruginous, the front coxa behind and trochanter piceous, front 

 and middle coxae pale below. Abdomen with first two tergites 

 entirely and third except at sides ferruginous, rest black except a 

 broad white band at apex of fourth tergite and pale membraneous 

 margins of apical tergites. 



Most. — Cactoblastis cactorum.. 



Type locality. — Piriapolis, IJraguay. 



