254 On the Hyme^ioptera of the Genus 



with a line before the wing, small spot each side of scutel, 

 white; wings a little dusky; feet white before; pectus 

 with a white line on each side, and somewhat testaceous 

 central spot ; tergum immaculate ; venter white. 



" Length nine twentieths of an inch." Sex not men- 

 tioned. 



I have not seen this species. 



Sp. 34. A. leucostoma. Kirby. Faun. Bor. Am. 256, 

 354. 



" Length of the body six lines (0.50 in.). 



" Body narrow, black, glossy, without hairs. Head 

 scarcely so wide as the trunk, wedge-shaped; palpi, subor- 

 bicular upper lip, emarginate nose, and base of the mandi- 

 bles, white ; apex of the latter rufous ; antennre a little 

 shorter than the trunk, nine-jointed, with the third joint 

 longest ; neck constricted ; tegulae testaceous ; wings sub- 

 hyaline, with piceous nervures ; legs yellow, with the apex 

 of the tibiae and whole of the tarsi of the posterior legs 

 black ; abdomen linear, acute at the anus. 



" This species comes near A. ater^^ (Europe). I have 

 not yet seen it. 



Sp. 35. A. Jtavomarginis. Nov. spec. Black ; face 

 and edge of collar yellow. (Long. 0.50 in. Ex. alar. 

 1.00 in.) 



9 Body black, slender, shining; antennoB rather short; 

 clypeus produced, emarginate ; clypeus, labrum, a spot on 

 cheeks, base of mandibles, and palpi, yeUow ; head a little 

 wider than thorax ; wing-scale and edge of collar yellow ; 

 two dots behind scutellum, the sides of basal membrane, 

 and a spot near posterior coxae, yellow ; legs black, ante- 

 rior pair and the intermediate tibiae and tarsi waxen yel- 

 low beneath ; a small yellow dot near the tip of anterior 

 femora above ; toes waxen yellow ; femora covered with a 

 fine pile beneath ; wings clouded toward apex; nervures 

 brown ; stigma pale at base. 



