G. C. DAVIS. 229 



except tip. and basal portion of second black, sometimes the apex or lateral mar- 

 gins are blackish ; antennae fulvous, blackish toward base above ; wings subhya- 

 line, nervures and stigma brown, pale at base; stigma large, thick, triangular; 

 entire body polished, with metathorax and basal segment of abdcmien somewhat 

 rugose ; mesopleurse mostly punctured and with a deep indenture on the posterior 

 median portion ; abdomen broad, pointed at apex. 



Seven .specimens from New Hampshire, Connecticut, Toronto, 

 Canada; Texas and Nevada. Type, coll. Am. Ent. Soc. 



Cteiiisciis flavicoxje Cress., Proc. Ent. Soc. iii, 283. 



9. — 5 mm. Head and thorax black, with face, except short median line be- 

 neath antennte. mouth-parts, scape beneath, anterior orbits, cheeks, pectus tegulfe, 

 spot in front, apex of scutellum, four anterior legs and posterior coxee and tro- 

 chanters whitish yellow ; antennae dusky brown, fulvous at tip ; abdomen ferru- 

 ginous with basal segment black and lateral margins of segments 2-5 dusky ; 

 liosterior legs, beyond trochanter, pale ferruginous, tibiae slightly dusky ; wings 

 hyaline, nervures reddish brown, stigma large, brown, pale at base; body is 

 shining, sparsely punctured ; abdomen broad, depressed at base, subcompressed 

 at apex : metathorax rugulose, polished at base, carinas distinct. 



% . — Ditfers from 9 i"^' having the abdomen only moderately broad, oval, not 

 compressed toward apex; all the prothorax, most of mesosternum and lower 

 niesopleurae, stripes along parapsidal grooves, scutellums, median tip of first ab- 

 dominal and apical dorsal portion of second segment whitish yellow ; the abdomen 

 is black at base of second segment but lacks the dusky latei'al border. 



Two females and two males from Canada, Delaware, Massachii- 

 .setts and Illinois. Type, coll. Am. Ent. Soc. 



Ctenisciis orbitali!>i Cress., Proc. Ent. Soc. iii, 283. 



9 . — 6 mm. Head black, with face, mouth-parts, cheeks behind eyes and an- 

 terior orbital lines white; antennae reddish brown, paler on apical portion ; thorax 

 and abdomen ferruginous; tegulae and scutellums white; prothorax somewhat 

 pallid ; legs ferruginous with four anterior coxae and all the trochanters whitish ; 

 wings hyaline, nervures and stigma brown, whitish at base ; abdomen polished, 

 petiole longitudinally aciculate; metathorax subpolished, carinae plain, apical 

 median area indistinctly transversely rugose. 



Tw(j specimens from Canada and Pennsylvania. Type, coll. Am. 

 Ent. Soc. 



PICROSCOPIJS Foerster. 

 (Synopsis der P^am. und Gatt. der Ichneumonen, 1868.) 

 In our own species of this genus, the carinje on the metathorax 

 are small and partly or entirely absent ; scutellum broad and flat ; 

 body coarsely and deeply punctured as in Metopius. 



Two basal segments of abdomen rugose or scabrous canadensis Prov. 



Two basal segments deeply punctured, not rugose : oblique grooves present at 



base of second segment liiilleiisis Prov. 



Picroscopus canadensis Prov. (Exentenis), Faune ii, 796. 



% 9. — 9 mm. Black, with orbital lines except above the eyes, face except 

 median line, scape beneath, mouth-parts, tegulae, line beneath, line on lateral 



TRANS. AM. KNT. ,SOC. XXIV. AUGUST. 1897. 



