ART. 16 NORTH AMERICAN ICHNEUMON-FLIES CUSHMAN 21 



base ; abdomen ferruginous, apical tergites more or less black, tergites 

 4—7 with narrow white margins. 



Ti/pe-Jocality. — California. 



Type.— C?it, No. 40584, U.S.N.M. 



Two females, the paratype from Kaslo, British Columbia (R. P. 

 Currie). 



The paratype is smaller than the type. It lacks the orbital mark- 

 ings on sides of face and on cheeks; clypeus is only faintly maculate 

 and the mandibles entirely black; the antennal annulus occupies 

 joints 9-11 ; the spots on the thorax are smaller, and those on the 

 subalar tubercles and propodeum are wanting; and the fourth tergite 

 lacks the apical white band. 



LISTROGNATHUS AGNATUS, new species 

 Figs. Ic, 3e 



Female. — Length, 8 mm. 



Head rather thick antero-posteriorly, the temples convexly oblique, 

 strongly punctate; frons polished, almost without sculpture, horn 

 fairly large ; face slightly widening below, coriaceous, medially rather 

 densely punctate; clypeus convex basally, but not especially promi- 

 nent ; malar space about three-fourths basal width of mandible ; occi- 

 pital carina not prominent below; antennae (broken). Thorax 

 rather more finely sculptured than usual for the genus; propodeum 

 with both basal and apical carinae distinct throughout and with the 

 areola obsoletely defined laterally, about as long as broad with cos- 

 tulae near base, apophyses low carinate, apical slope flat; nervulus 

 strongly antef ureal; nervellus slightly inclivous, its upper abscissa 

 obliijue to cubitella. Abdominal sculpture rather finer than usual,* 

 postpetiole shining, punctate only around margins and these sparsely 

 so; sheath little more than a third as long as abdomen; ovipositor 

 rather slender, slightly compressed, dorsal margin beyond angle 

 straight. 



Black ; narrow frontal orbits and sometimes narrower facial orbits, 

 humeral margins of pronotum, tegulae, subalar tubercles, spot on 

 scutellum, sometimes a spot on each side of posterior face of pro- 

 podeum and joints 2— i of hind tarsus white; hind femur at apex, 

 tibia, and basitarsus black, the tibia indefinitely paler subbasally; 

 wings hyaline, venation brown, stigma paler; abdomen black, first 

 tergite very dark reddish picoous, second and third very narrowly 

 margined with pale reddish. 



Type-locality. — Southern Illinois. 



Type.— C'^it' ^o. 40585, U.S.N.M. 



Three females, none entire. 



These bear an Ashmead manuscript name indicating an associa- 

 tion witli the lopidopterous genus Orgyia. 



