278 AMERICAN HYMKNOPTERA. 



median uervures nearly interstitial ; head shagreened, opaque, pilose; front with 

 small tuliercle beneath anteunse ; clypeiis tiat, roundefi at apex ; abdomen broadest 

 on segments 2 and 3, subcompressed at apex ; ovipositor exserted ; petiole slender 

 at base, rapidly widened on posterior half: carinte extend to apex. 



One specimen from Hudson Bay, Canada (type, coll. A. E. S.). 



Treiiiatopygus scutellatus Ashm. (Primwpodn), Pr. U. S. N. M. xii, 441. 

 9. — 6 mm. Fulvo-ferruginous with spot enclosing ocelli, dorsum of thorax, 

 except scutellum, and basal segment of abdomen dark piceous : posterior tarsi and 

 apex of their tibise dusky ; anteunse reddish brown ; wings hyaline, areolet trian- 

 gular, incomplete, entire body finely shagreened, not punctured; basal segment 

 of abdomen without distinct cariuse. 



One specimen from Washington, D. C. (type, coll. U. S. N. Mus.). 



HOMOBIA Foerster. 

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

 Honiobia cinctiveiitris Ashm. (Colpotrochia), Tr. Am. Ent. Soc. xxiii, 200. 

 9 . — 11 mm. Black, pilose, with mouth, spot al>ove clypeus, tegulse, spot before, 

 line beneath, four anterior tibise and tarsi and long stripe on outer posterior 

 tibise white; posterior femora piceous; posterior tarsi and remainder of tibiae 

 black ; rest of legs rufous; head and thorax closely punctured, abdomen polished ; 

 clypeus transverse, not separate, deeply impressed at apex ; mesonotum trilobed 

 anteriorly, metathorax with distinct areas on apical portion ; abdomen elongate, 

 petiole slightly widened behind spiracles and with dorsal caringe ; wings hyaline, 

 areolet petiolate ; legs long, rather slender. 



Type from Massachusetts and in coll. of Ashmead. 



BARYCEKOS Provancher. 

 (Le Naturaliste Canadien. vii. 269, 1875.) 



Head transverse, slightly inflated ; clyjjeus separated, elliptical ; 

 antennae short, slender at base, thickened and somewhat flattened on 

 second apical third ; segments verticillate on apical edge, long at 

 base ; parapsidal grooves deep and uniting in a depression before the 

 scutellum ; metathorax with longitudinal carinje. Abdomen de- 

 pressed, petiolate ; basal segment arched and strongly carinate ; 

 areolet of wings small, oblique, petiohite. This name is an old one 

 used by Gravenhorst, and will probably need to be changed. 



Baryoeros rliopaloeeriis Prov. (Mesoleptus), Faune Ent. Can. ii, 405. 



'J, . - 8 mm. Head and tliorax black, abdomen and legs rufous; face, scape 

 beneath, mouth-parts, cheeks at base of mandibles, tegulge, trochanters and four 

 anterior coxae, yellowish white ; antennae pale rufous with apical fourth dark 

 brown ; basal segment of abdomen and apex of posterior femora and tibiae more 

 or less black, apex of abdomen also sometimes dusky ; wings subhyaline, ner- 

 vures and stigma brown, paler at base ; stigma thick, lanceolnte ; areolet oblique, 

 petiolate; head shagreened, face oval; clypeus flat, broadly rounded at apex; 

 thorax polished and pilose; abdomen elongate, depressed, broadly oval, polished 

 beyond middle of second segment; petiole curved, rather slender at base, con- 



