PARASITIC HYMENOPTERA. 553 



the joints binodose, with whorls of long, white hairs. 

 The abdomen is polished black, ovate, attached to the 

 thorax by a long, punctate petiole. 



Described from one S specimen from Tepic. 



Perilampus Latreille. 



32. Perilampus triangularis Say. 



LeConte Ed. Say's Works, i, p. 381. 

 Six specimens from San Lazaro. 



Orasema Cameron. 



33. Orasema viridis sp. n. 



$ . — Length 3 mm. Head, thorax, scape of antennae, 

 femora and petiole of abdomen, all metallic green; flag- 

 ellum black; mandibles rufous, the right with two teeth, 

 the left with only one within ; tibise and tarsi brownish- 

 yellow; abdomen geneous black; wings hyaline, the veins 

 dark brown. 



Described from one S specimen from Tepic. 



Metapon Walker. 



34. Metapon mexicanum sp. n. 



? . — Length 2 mm. Head and thorax geneous black, 

 closely punctate; mandibles rufous; scape, pedicel and 

 legs, except the cox« and anterior and middle femora, 

 ferruginous; anterior and middle femora metallic brown; 

 hind coxae blue. Abdomen pointed ovate, polished black, 

 as long as the thorax and keeled beneath. Flagellum in- 

 crassated toward tip, the joints, after the first, increasing 

 in width and wider than long. Wings hyaline, the veins 

 brown, the marginal vein twice as long as the stigmal. 

 The fourth abdominal segment is not quite half as long 

 as the third, the fifth only a little shorter than the third, 

 while the sixth and seventh are a little longer. 



Described from one $ specimen from Tepic. 



2d See., Vol. V, ( 36 ) September 7, 1895. 



