ART. 25 NEW ICHNEUMON-FLIES CUSHMAN 13 



CREMASTUS PTEROPHORI. new species 



Like rhyacioniae this species runs in my key to efagoges Cush- 

 man in the female and to forhesii Weed in the male. In size of ocelli 

 the female agrees better with forhesii. 



Female. — Length 10 mm.; antennae 7 mm.; ovipositor sheath 3.5 

 mm. 



Head in frontal view very strongly transverse, eyes bulging and 

 faintly, broadly emarginate within; face nearly as broad as height 

 of eye, opaque, shagreened, and rather densely punctate, medially 

 somewhat elevated, the elevation continuing on to clypeus, which 

 is rather prominent, inflexed and strongly rounded at apex, shining 

 and more sparsely punctate than face; malar space as long as basal 

 width of mandible; temples very strongly receding, nearly flat; 

 diameter of ocellus subequal to ocell-ocular line and two-thirds 

 postocellar line. Thorax opaque shagreened and punctate, the punc- 

 tures dense on mesoscutum, more sparse elsewhere; pronotum later- 

 ally and speculum subpolished; notauli well defined and foveolate, 

 prescutum prominent; scutellum punctate opaque, laterally mar- 

 gined; propodeum subopaque, shagreened, and punctate, apically 

 more or less transversely rugulose, combined areola and petiolar 

 area of almost uniform width, the areola nearly as long as petiolar 

 area ; propodeal " neck " in dorsal view shallowly concave laterally, 

 extending well beyond middle of coxae; cubitus and discoideus dis- 

 tinct beyond recurrent; nervellus obsoletely broken below middle. 

 Abdomen slender; first segment barely longer than dorsal length 

 of propodeum, dorsolateral carinae present before spiracles, post- 

 petiole abruptly enlarged; second tergite about four times as long 

 as broad at base, apaque striato-shagreened ; tergites 3 to 6, opaque, 

 shagreened, and punctate, third definitely less deep than fourth. 



Black with thorax laterally and abdomen more or less obscure red. 

 Head black with orbits completely, malar space, sides of clypeus 

 and mandibles yellow, as is also the under side of scape and pedicel; 

 antennae otherwise black with apices of flagellar joints more or less 

 distinctly paler; ventral margin of pronotum, lateral margins of 

 mesoscutum, scutellum, a streak on mesopleurum, metapleurum more 

 or less, and all lateral sutures of thorax reddish, the mesoscutal and 

 scutellar markings inclining to yellow; front and middle legs tes- 

 taceous, their coxae and trochanters stramineous; hind leg largely 

 blackish, the coxa at apex, trochanter, femur apically and tibia in 

 middle pale; abdomen black and piceous red in the usual arrange- 

 ment, the plica pale. 



Male. — Eyes larger, face much narrower than height of eye, malar 

 space about half basal width of mandible, diameter of ocellus as 



