ICHNEUMON-FLIES — GELINAE : MESOSTENINI 157 



Male: Head ivory, the central part of frons, vertex, and occiput 

 black, the frons sometimes with a median fulvous stripe; mouth parts 

 white, the palpi brownish apically; scape and pedicel ivory and ful- 

 vous, fuscous above; flagellum black, with a white band; propleurum 

 ivory \\^th a dorsolateral black area; pronotum ivory, with a broad 

 black stripe from the middle of the hind edge across the neck and a 

 narrow black stripe on lower part of hind edge, usually also mth a 

 small fulvous area on the side, just below the broad black stripe; 

 mesoscutum fulvoferruginous, its margins and notauli fuscous; scutel- 

 lum and postscutellum ivory, the surrounding areas partly or entirely 

 black; mesosternum and mesopleurum fulvous, with a large ivory area 

 over the sternaulus and covering most of lower 0.65 of the mesople- 

 urum, the subtegular ridge ivory and dorsoposterior edge of mesople- 

 urum black; metapleurum fulvous, narrowly fuscous along ventral 

 half of its front edge; propodeum fulvous, its basal groove black; 

 front and middle coxae and trochanters ivory, with some fulvous stains; 

 front and middle legs beyond trochanters fulvous, their tarsi brownish; 

 hind leg fulvous, segments 2-4 of its tarsus and often apex of the 

 fu-st segment, ivory, the fifth segment fuscous; abdomen fulvous. 



Female: Similar in coloration to male but with fulvous on each 

 side of the broad black stripe on pronotum, less ivory on mesosternum 

 and mesopleurum, and hind tarsus entirely fulvous except that last 

 segment is brown. 



Type: 9, Oak Creek Canyon, Ariz., May 13, 1947, H. and M. 

 Townes (Washington, USNM 63768). 



Paratypes: cT, near Alpine, Ariz., May 29, 1947, H. and M. Tow^nes 

 (Townes). Qd", 59, Oak Creek Canyon, Ai-iz., May 13, 16, and 20, 

 1947, H. and M. Townes (Townes). 



This species is known from Arizona, in the Transition and Canadian 

 zones. 



8. Ischniis rhomboidalis (Walsh), new combination 



Cryptus rhomboidalis Walsh, 1873, Trans. Acad. Sci. St. Louis, vol. 3, p. 72; ?. 



Type: 9, Illinois? (destroyed in Chicago fire of 1871). 

 Cryptus amblyielarius Provancher, 1886, Additions et corrections au volume ii de 



la faune entomologique du Canada traitant des hymenopteres, p. 70; 9. 



New synonymy. Type: 9, Becancour, Que. (Quebec). 



Front wing of male 4.8 to 6.4 mm. long, of female 4.0 to 6.0 mm. 

 long; structurally similar to /. inquisitorius atricollaris except that it 

 is a little smaller and stouter, flagellar segm.ents shorter, scutellum 

 with lateral carinae only at its basal corners, apical carina of propo- 

 deum a little weaker sublaterally and with a tendency for its median 

 section to be suggested by stronger wTinkling, and postpetiole with 

 fine, weak, moderately dense punctures that are separated by about 

 1.7 their diameter. 



