NO. 2284. ;s'EVr' NORTH AMERICAN ICHNEUMON-FLIES— CUSHil AN. 543 



in the possession by some specimens of more or less fuscous on the 

 third tergite and by others of reddish reflections on the fourth. 



PKOTEROCRYPTINI, new tribe. 



Examination of the type of Proferocryptus naioaii Ashmead, type 

 of the genus ProterocryptuH Ashmead/ discloses the fact that it 

 is not Hemiteline, as Ashmead considered it, nor even Cryptine, but 

 rather Tryphonine. In the Tryphoninae it will not run to any of the 

 tribes tabulated by Ashmead, but in Forester's key to his families of 

 Ichneumonidae ^ it runs, on the origin of the radius near the base of 

 the stigma and the petiolate abdomen, to the Sphinctoidae (tribe 

 Sphinctini Ashmead), but differs from Sphinctus Gravenhorst, the 

 only included genus, in many characters of apparent tribal value. In 

 addition to the two characters mentioned above it resembles Sphinctus 

 in the globular thorax, the confluent areola and petiolar area, the 

 strongly petiolate abdomen, the distinct gastrocceli distant from the 

 base on the second tergite, and, except that the second intercubitus is 

 lacking and the aerolet therefore ^^^ 



open, m the venation oi the front :^^-^ '••-^-. ^^-^' \ 



wing. It differs from Sphinctus ^^>^ * "^ /" "'"<^ " ) 



principally in the following char- 

 acters: Head very strongly trans- 

 verse, almost lenticular, the tem- 

 ples nearly flat and very sharply 

 sloping to the rather weak occipi- 

 tal carina; eyes parallel within 

 and sharply emarginatc opposite 

 the antennae; clypeus small, flat, fig. i.— wings of proterocryptos 



, T, 1 1 i ,1 NAWAII ASHMHAD. 



broadly rounded at apex; scutel- 



lum slightly convex, not margined, separated from the mesoscutum 

 and postscutellum by rather broad crenulate furrows instead of by 

 deep narrow slits, postscutellum also not strongly margined ; propo 

 deum completely though weakly areolated, except that areola and 

 petiolar area are confluent, spiracle situated very near to the junction 

 of the lateral carina and the costella; prepectal carina very high and 

 flangelike ventrally ; first abdominal segment clavate, the spiracles not 

 prominent, the tergite and sternite completely fused and not separated 

 by either carina or groove ; ovipostor exserted (in the genotyj)e as long 

 as the first tergite) ; second intercubitus completely absent; longitudi- 

 nal veins of hind wing, except metacarpella, vestigial beyond the 

 transverse veins, the intercubitella placed so far basad of its normal 

 position as to give the wing a strongly Braconid appearance; hind 

 tibia with two apical spurs. 



The venation of both front and hind wings is shown in figure 1. 



The tribe includes onlj^ the genus Proterocryptus Ashmead. 



1 Proc. U. S. Nat. Mus., vol. 30, 190G, p. 174, pi. 12, flg. 3. 

 »Verh. naturh. Ver. preuss. Rheinl., vol. 25, 1868. 



