G. C. DAVIS. 311 



late: abdomen narrower than in preceding species; ovipositor curved upward; 

 hind femora and coxse much enhirged. 



Two specimens from Colorado (types, coll. Amer. Eut. Soc. and 

 Davis). 



GAIJSOCENTRUS Foerster. 

 (Synopsis der Fam. und Gatt. der Ichneumonen, 1868.) 

 Oausocentrus (?) strigosiis Cress. [Mesoleptus), Tr. Am. Ent. Soc. iv, 167. 

 %, . — 7 mm. Ferruginous, with scutellar region and tlagellum nearly black; 

 hind taisi dusky with a small yellow annulns on segments two and three ; cheeks 

 behind eyes yellow, polished ; body and legs long and slender and finely sha- 

 green ed ; meta- and mesothorax coarsely but sparsely punctured; head small, 

 oval in front ; clypeus separated, narrow ; metathorax elongate and without 

 carina; petiole of abdomen arched, narrow, spiracles placed just back of the 

 middle. 



Type from Texas (coll. U. S. Nat. IVIus.). 



PHOBETES Foerster. 

 Phobefes albinoi)eiiiii.s n. sp. 



%. — 6 mm. Black, with scape and mouth-parts pale piceous ; hind cox£e and 

 second abdominal segment vary from black to piceous ; base of tibiae, palpi, 

 tegulfP, spot before and apical margin of second alidominal segment white ; rest 

 of legs ferruginous; wings large, hyaline, iridescent, uervures and stigma trans- 

 parent white; areolet wanting; second recurrent nervure oblique; third discoidal 

 cell broad, nearly square; humeral cross-nervure broken below the middle: head 

 pilose, disc-shaped, wider than thorax, highly polished ; clypeus transverse, not 

 distinctly separated ; antennae filiform, nearly a^ long as body; thorax polished, 

 mesouotum finely shagreened ; parapsidal grooves deep and narrow; scutellum 

 long, flat, and with lateral carinae, postscutellum with two depressions; meta- 

 thorax shagreened and completely and distinctly areolated ; abdomen petiolate, 

 depressed ; first two segments shagreened, rest polished ; basal segment broadly 

 oval, spiracles central ; legs long, slender; tibise slightly constricted at base. 



Two specimens from So. Dakota (Prof. Aldrich) and Florida 

 (Mrs. Slosson). Coll. G. C. Davis. 



RH^i^iTES Foerster. 

 (Synopsis der Fam. und Gatt. der Ichneumonen, 1868.) 



Body entirely rufous • in<*e!4Saiis n. sp. 



Head, coxaj and most of thorax, black difticili^i n. sp. 



Rhtestes inces!«aiis n. sp. 



9 . — 7 mm. Entirely rufous with sutures black ; in one specimen dusky ru- 

 fous with apex of hind femora, tibife and most of metathorax dusky; clypeus 

 yellow; wings dusky hyaline, iridescent, nervures and stigma brown; areolet 

 wanting; secoud recurrent nervure far back of cubital at juncture; head small, 

 transverse, strongly narrowed below ; base of mandibles narrower than their 

 distance to the eyes; clypeus depressed at apex; metathorax faintly cariuate; 

 abdomen short, moderately wide, polished, shagreened, smooth ; petiole oval, 

 smooth, narrow at base, broad at apex, and not more than one and one-half times 

 as long as broad. 



TRANS. AM. ENT. SOC. XXIV. NOVEMBER, 1897. 



