AMERICAN IIYMENOrTERA. 131 



nearly transverse, being very slightly arcuate; nietathorax rounded, 

 slightly excavated behind; wings hyaline, the extreme apex faintly 

 dusky; wing-cells much as in Fig. 8, a; legs dull fulvous, coxa3 black, 

 tips of the tarsi blackish ; abdomen short, convex, petiolate, polished, 

 pruinose. Length 6 lines. 



Rah. — Vera Cruz, Mexico, (Coll. Am. Ent. Soc, from Mr. Chas. 

 Sartorius). 



Three 9 specimens. Larger than mdlipcs, to which it is closely 

 allied. 



106. Pompiius (Agenia) subvirescens, n. sp. 



F<nia/e. — Black; head and thorax rather densely clothed with a 

 golden pubescence, that on the thorax having a beautiful green reflec- 

 tion in certain lights; anterior margin of the clypeus sinuous; anten- 

 nae testaceous, dusky at tips ; posterior margin of the prothorax de- 

 pressed and subarcuate ; metathorax short, oblique, with a shallow 

 channel down the middle ; wings hyaline, slightly tinged with yellow- 

 ish ; wing-cells much as in Fig. 8, a; legs luteous ; coxae, trochanters 

 and base of femora black ; abdomen ovate, petiolate, convex, polished, 

 the apex with an ovate polished space. Length 4j lines. 



JLib. — Vera Cruz, Mexico, (Coll. Am. Ent. Soc, from Mr. Chas. 

 Sartorius). 



One 9 specimen. 



107. Pompiius (Agenia) azureua, n. sp. 



Female. — Black, opaque, with a strong blue and purple reflection ; 

 head black, without any blue or purple reflection, face narrow, serice- 

 ous, clypeus small, its tip truncate; antennse black, pale sericeous; 

 prothorax large, its posterior margin angular ; the scutellum with a 

 finely impressed line down the middle ; metathorax with a very deep 

 channel down the middle, leading into a large and deep excavation at 

 the tip, leaving the posterior angles acute; anterior wings black, with 

 a strong purple reflection, the apical margin darker than the rest of 

 the wing ; marginal cell large, the tip obliquely pointed ; second sub- 

 marginal quadrate, receiving the first recurrent nervure beyond the 

 middle ; third submarginal narrowed towards the marginal, receiving 

 the second recurrent nervure in the middle ; posterior wings clearer, 

 the tips dusky ; legs with a strong blue reflection ; abdomen oblong- 

 ovate, sessile, convex, with a strong blue and purple reflection. Length 

 6 lines. 



Ilah. — Vera Cruz, Mexico, (Coll. Am. Ent. Soc, from Mr. Chas. 

 Sartorius). 



