312 AMERICAN HYMENOPTERA. 



Two specimens from Colorado and Mt. Washington, New Hamp- 

 shire (Mrs. Slosson). Types, coil. Amer. Ent. Soc. and Davis. 



Rliiestes difllcilis a. sp. 



%. — 9 mm. Head and thorax black, except a dusky rufous patch on meso- 

 uotum and tegulse, lower portion of face, clypeus and mouth-parts, which are 

 brownish yellow; antennfe brown ; legs pale rufous with cosse and basal half of 

 trochanters black, the terminal tarsal segment on all tarsi brown ; abdomen ru- 

 fous, petiole and transverse patch on second segment black ; wings yellowish 

 hyaline, nervures and stigma pale brown ; areolet wanting on one side, small and 

 petiolate on the other; body pilose, punctured; pleurje, metathorax and face 

 coarsely and very closely punctured ; head shagreened, narrowed below eyes, 

 clyiieus compressed at tip, mandibles far from eyes ; carinse small, distinct on 

 metathorax ; abdomen shagreened, elongate, smooth, polished toward apex ; 

 petiole smooth, oval, but little broader at apex than at base, twice as long as wide. 



One specimen from Colorado (coll. Amer. Ent. Soc). 



STIPHKONOITIITS Foerster. 

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

 Stiplirosoinu!^ obeiisa n. sp. 



9 . — 7 mm. Black ; abdomen, scutellums, face, except central dusky line, and 

 clypeus, rufous; mouth-parts and four anterior legs more yellowish; posterior 

 legs rufous, tarsi and apical half of tiliise brown, basal half of tibife and tibial 

 spurs pale yellow: antennae reddish brown ; wings subhyaline, nervures and 

 stigma brown; areolet present, petiolate, oblique; head and thorax very finely 

 punctured ; clypeus compressed at apex and finely margined ; parapsidal grooves 

 distinct in front; longitudinal cariiife present on metathorax, the two median 

 ones most distinct; abdomen polished, finely punctured, broad, slightly com- 

 pressed at apex ; ovipositor exserted ; petiole smooth, narrow at base, broad at 

 apex, spiracles somewhat tuberculate; legs strong, posterior femora slightly in- 

 crassate. 



One specimen from Virginia (coll. Amer. Ent. Soc). 



DIZEIflO^ Foerster. 

 Dizenion regalis n. .sp. 



9 . — 7 mm. Black, with white markings as follows : spot on each scape beneath, 

 face except V-shaped median portion, clypeus, cheeks beneath, mouth-parts ex- 

 cept teeth, tegulse, spot in front, line beneath, triangular stripe on anterior lateral 

 margins of mesonotum, suture between meso- and metanotum, scutellums, apical 

 margins of abdominal segments broadening toward apex and laterally, four an- 

 terior coxse and trochanters, apical part of posterior trochanters and a stripe 

 beneath near the base of posterior tibite ; remainder of posterior tibife and the 

 tarsi blackish ; remainder of legs rufous, except terminal segments of four ante- 

 rior tarsi, which are blackish ; antennae long, reddish brown ; wings large, sub- 

 hyaline, nervures and stigma brown ; areolet wanting; second recurrent sinuate 

 and uniting far back of the transverse cubital ; transverse median nervure 

 uniting considerably back of basal on externo-median nervure ; head, thorax and 

 abdomen shagreened ; clypeus compressed laterally on anterior margin ; longitu- 

 dinal carinse on metathorax, weak ; petiole smooth, gradually broadened toward 



