G. C. DAVIS. 243 



One specimen from Mt. Washington, N. H. (Mrs. Slosson). Type, 

 coll. Davis. 



CATASTEBflTS Foevst. 

 (^Synopsis der Fam. und Gatt. der Iclineiimonen, 1868.) 



Head small, transverse, narrowed below, polished and pilose ; face 

 oval, smooth and with a pitchy lustre ; clypeus long, arched, com- 

 pressed, sharply rounded at apex; mandibles prominent, palpi long, 

 the maxillax-y extending to about the middle of mesosternum. Tho- 

 rax short, rectangular, gibbous ; metathorax excavated beneath ; 

 notum variable. Abdomen petiolate, subclavate, even above ; petiole 

 slightly arched, spiracles near the middle, no distinct median groove 

 or carina; ovipositor exserted ; wings with an oblique petiolate 

 areolet ; stigma triangular, rather large ; humeral cross uervure not 

 broken ; third discoidal cell very long. 



Metathorax strongly spined ; thorax rufous to piceous rufullis Prov. 



Metathorax not spined ; thorax black. 



Metanotuni rugose and areolated ; face blach glabi'ifroiis n. sp. 



Metanotuni and entire body polished, smooth ; face yellow. . . valeriu$[$ n. sp. 



C'atastenus riifulus Prov. {Phygadmon). Faune Ent. Can. ii. 322. 



% 9 . — 6 mm. Head black, olypeus piceous, palpi yellowish, antennse rufous to 

 brown, paler at base; thorax varies from piceous to entirely rufous, scutellum 

 slightly paler; abdomen with segments 2-4 rufous, apical segments piceous to 

 black, petiole rufous to piceous; legs entirely rufous; wings hyaline, nervures 

 and stigma brown ; legs strong, hind femora swollen ; tibial spurs very short and 

 small ; parapsidal grooves distinct; three basal segments of abdomen more or less 

 distinctly aciculate; metathorax with strong, lateral, apical spines. 



Three specimens from Canada and New Hampshire (type, coll. 

 Quebec Museum). 



Cafasteiius glabrifroiis n. sp. 



%. — 3.5 mm. Black, abdomen beyond petiole rufous, with piceous border; 

 legs, scape, clypeus, mandibles and tegulje, honey-yellow, palpi white ; posterior 

 tarsi and antennse fuscous; wings hyaline, iridescent, nervures and stigma brown ; 

 metathorax and petiole rugosely shagreened and pilose; abdomen not aciculate. 



One specimen from Algonquin, 111. (Dr. Nason) ; coll. Davis. 



Catastenus Valerius n. sp. 



9 . — 2.5 mm. ; ovipositor 1.5 mm. Black, with face, scape beneath, prothorax, 

 tegulae, spot at base of second abdominal segment and the legs honey-yellow ; 

 mouth-parts white; posterior tarsi and apex of tibiae dusky; antennje slender, 

 black-brown and strongly pilose ; wings hyaline, nervures and stigma brown : 

 areolet small, very oblique; head and thorax highly polished, impunctured ; 

 metathorax without carinse ; abdomen polished, strongly compressed beyond the 

 base of the second segment. 



One specimen from Algonquin, III. (Dr. Nason). Type, coll. 

 Davis. 



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



