322 AMERICAN HYMENOPTERA. 



wings large, fusco-hyaline, nervnres and stigma pale yellow; mesonotum with 

 parapsidal grooves; metathorax small, flat, carinate ; abdomen elongate, gradu- 

 ally enlarged to the apex of the sixth segment ; first two segments somewhat 

 tuberculate; body polished and sparsely pilose. 



One specimen from Mt. Hood, Oregon. 

 Alexeter Meiniiiiger Prov. (Mesolept^is), Fa\ine Ent. Can. ii, 403. 



Ij 9-~9 mm. Rufous, with pectus, sternum, lower pleur?e, lower and apical 

 metathorax, apex of posterior tibiie, and sometimes the femora and apical dorsum 

 of abdomen, piceous ; face, scape beneath, mouth-parts, tegulse, posterior tarsi and 

 posterior tibise except apex, yellow : four anterior legs and antennje yellowish : 

 wings hyaline, iridescent, nervures and stigma yellowish brown ; mesonotum 

 subtrilobed ; carinse on metathorax faint, transverse cariuse wanting. 



[Located by one specimen in which the abdomen is wanting.] 

 Canada. 

 AlexeJer liiteif'rons Cress. {3IesoIepfus), Trans. Amer. Ent. Soc. ii. 99. 



% . — 7 mm. Honey-yellow, with head black, and face, scape beueath. mouth- 

 parts, pectus, tegulfe, trochanters, four anterior legs and posterior tarsi, yellowish 

 white; wings hyaline, nervures and stigma yellow, parapsidal grooves present; 

 metanotum rather flat, faintly carinate ; abdomen elongate, gradually broadening 

 toward apex. 



One specimen from " British America" (coll. Am. Ent. Soc). 



Alexeter caiialiculatus Prov. (Paniscus and Mesoleptus\, Faune Ent. Can. 

 ii, 403. 

 9 % . — 8 11 mm. Color varies from pale honey-yellow to rufous, with the face, 

 mouth-parts, tegulse and four anterior legs yellowish or paler. In one specimen 

 from Washington the front above antennse, occiput, cheeks, pectus and sternum 

 are black and the thorax dark rufous ; another specimen from New Hampshire 

 has the posterior tarsi pale yellow and the tibite black. These may be represen- 

 tatives of other species. Wings large, yellowish hyaline, with nervures brown, 

 stigma yellow, parapsidal grooves distinct; metathorax with median longitudinal 

 carinte distinct, running close together; abdomen long, gradually widening 

 toward the apex. 



Eight specimens from Canada, New Hampshire (Mrs. Slosson), 

 New York, Philadelphia (Chas. John.son) and Washington. 



OXYTORrS Foerster. 

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



Opaquely shagreened, abdomen polished or subpolished toward 

 apex. Head transverse, clypeus partially flattened ; antennae filiform, 

 usually with white annulus. Thorax strongly gibbous ; prothorax 

 with deep posterior groove and high collar ; parapsides distinct ; 

 .scutellum elevated, margined at base ; metathorax elongate, plainly 

 and more or less completely areolated, tuberculated. Abdomen 

 slender ; petiole but slightly widened and more or less arched ; areolet 

 of the wing sessile or subsessile. 



