ART. 4. NEW SPECIES OF ICHNEUMON-ELIES — CUSHMAN. 9 



tate, sternauli short but strong ; metapleuriim and propodeum irregu- 

 larly rugulose, the latter polished and sparsely punctate before the 

 weak basal carina; apical carina broadly incomplete medially, apo- 

 physes prominent, flange like; areolet large, sides slightly conver- 

 gent ; discocubitus sinuate but not broken ; nervulus interstitial ; ner- 

 vellus broken far below middle, perpendicular. Abdomen finely 

 shagreened; first tergite depressed, petiole flat above and polished, 

 postpetiole very broad, spiracles at apical third ; ovipositor sheath a 

 half longer than first tergite. 



Black, with middle of abdomen, including postpetiole and base of 

 fourth tergite fsrruginous, incomplete annulus occupying flagellar 

 joints 5-9, radices of wings, and spot on seventh tergite white; flagel- 

 lum otherwise fuscous with basal joints more reddish; front and 

 middle coxae and all trochanters largely piceous, hind coxae red ; hind 

 femur at apex, hind tibia and tarsus fuscous, the tibia with a white 

 basal annulus; legs otherwise testaceous to stramineous; wings 

 faintty brownish hyaline, venation brown. 



Male. — Has malar space shorter, apophyses weaker, and abdomen 

 much more slender with postpetiole longer than wide, but structurally 

 otherwise much like female; flagellum, except a white spot at ex- 

 treme base above, black ; anterior orbits, broadly below and narrowly 

 above antennae, clypeus except margin, disk of mandible, palpi, an- 

 terior median margin of pronotum, tegulae largel}^, spot at apex of 

 seventh tergite, base of hind tibia and middle three joints of hind 

 tarsus white ; all coxae and apical half cf femur black. 



Host. — Cinihex amencana Leach. 



Type locality. — Brookings, South Dakota. 



Type.— C?it. No. 25919,' U.S.N.M. 



Seven females and seven males reared May 17-26, 1891, at the 

 South Dakota Experiment Station, and determined by G. C Davis 

 as Cryptus extrematus Cresson. 



There is considerable variation in size in both directions from that 

 of the type, the largest female being 9 and the smallest 5 mm. long. 

 In the male the frontal orbits, the collar, and the seventh tergite are 

 sometimes not at all white marked and the second joint of hind tarsus 

 is largely black. 



One pair of paratypes is returned to the South Dakota Expern- 

 mention Station. 



Subfamily Ichneumoninae. 



TRIBE ODONTOMERINI. 

 ODONTOMERUS STEJNEGERI, new species. 



Female. — Length 9 mm.; ovipositor 6.5 mm.; antennae (flagella 

 missing) . 



