Vol. XXvii] ENTOMOLOGICAL NEWS. 331 



I find in my collection a specimen from Forest Hills, Massa- 

 chusetts, which is evidently a true Heterocola and establishes 

 the occurrence of this genus in the Eastern United States. It 

 is described below. 



Heterocola americana sp. nov. 



$ . Length 2.8 mm. Black, with the abdomen beyond the middle of 

 the petiole ferruginous ; scape below, mandibles, lower portion of cly- 

 peus, mouth-parts, tegulae and legs, including coxae, honey yellow, 

 apical joint of palpi black; ovipositor concolorous with the abdomen, 

 its sheaths piceous; wings tinged with brown, stigma and veins dark 

 brown. 



Head subopaque, very finely shagreened, more shining on the temples 

 and distinctly so on the cheeks. Antennae 20-jointed, inserted midway 

 between the vertex and base of clypeus; scape short, only half longer 

 and no thicker than the pedicel ; flagellum narrow at base, the first 

 joint as long as the scape, but only half as thick; second joint two- 

 thirds as long as the first, third and following thicker, those toward 

 the middle a little longer than wide; clypeus shining, coarsely punc- 

 tate. Mandibles long, nearly twice as long as the malar space and 

 equalling the width of the eye; labrum elongated, pointed, as long as 

 the eye and extending considerably beyond the anterior coxae; maxil- 

 lary palpi with four subequal joints, reaching, when extended, almost 

 to the middle coxae. 



Mesonotum and scutellum opaque, shagreened, separated by a deep 

 punctate groove which is terminated at the sides by a sharp carina 

 that extends back over the basal angles of the very convex scutellum. 

 Metathorax short, obliquely truncate, with a short basal median carina 

 followed by a large area which includes the whole of the posterior 

 slope of the metathorax ; posterior lateral and pleural areas large, dis- 

 tinct ; spiracle minute, circular, close to the anterior end of the pleural 

 carina; surface of metathorax finely rugulose; pleurae shagreened. 



Abdomen widest at the third segment, acutely narrowed apically; 

 petiole slender, scarcely widened to beyond the middle, then suddenly 

 wider, more gradually so near the apex, its spiracles just behind the 

 middle ; body of abdomen moderately compressed toward apex, its sur- 

 face smooth and shining ; ovipositor as long as the abdomen with- 

 out the petiole. 



Legs moderately slender. Wings with the transverse cubitus short, 

 almost punctiform, recurrent nervurc received just beyond it; third 

 discoidal cell completely closed. 



A single female from Forest Hills, Boston, Massachusetts, 

 taken during September, 1913. 



