76 AMERICAN HYMENOPTERA. 



Distribution. — This species is tropical, ranging through 

 most of the West Indies. It has been reported from Cuba, 

 Jamaica, St. Vincent and Grenada, and I have seen speci- 

 mens from Santiago de Cuba ; Portland, Jamaica ; and Bridge- 

 town, Barbados. 



Nothing is recorded of the life history or habits of this 

 species ; the specimen from Barbados was taken on Decem- 

 ber 1. 



Locatio7i of specimens. — American Entomological Society : 

 cotypes, two 9 's and one c5^, No. 76, Cuba; paratypes, two 

 9 's and one cf, Cuba, 9, Portland, Jamaica. American 

 Museum Natural History, 9 , Santiago de Cuba. Massachu- 

 setts Agricultural College, paratype, 9 , Bridgetown, Barba- 

 dos, December 1, 1902. British Museum. 



Enicospilus purgatus arciiatus (Felt.) 

 Plate III, fig. 23. 

 Ophion [Enicospilus) arcuatum Felt, Psyche, Vol. IX, p. 307, 



February 1902. 



Eniscopiltis arcuatus Felt, N. Y. State Mus., Bull. 76, pp. 108, 



112, pi. 1 1904. 



Henicospilus arenatus Szepligeti, Gen. Ins., Hym., 34«ie Fasc, p. 



27, n. 70 1905. 



Light fulvo-ferruginous , varied with fuscous ; vertex flavous ; wings 

 hyaline, iridescent , with two maculce, the larger with a long appendix, 

 extending around the outer end of the glabrous area ; bulla of discocu- 

 bital vein distant one-half the width of the third discoidal cell from its 

 apex. 



Length, 20-30 mm. ; wing, 14-20 mm. ; spread, 30-42 mm. ; antennae, 

 21-33 mm. 



Head flavous — in one specimen entirely rufous — vertex flavous; 

 ocelli large, equidistant, prominent, well separated, the posterior close 

 to the tops of the eyes ; antennae slightly longer than the body ; eyes 

 emarginate ; clypeal fovese deep ; mandibles bidentate, tipped with 

 black. 



Thorax sericeous, flavous, more or less tinged with fuscous ; meso- 

 notum and metathorax frequently fuscous or ferruginous ; pleurae fre- 

 quently tinged with fuscous ; scutellum prominent, flavous, with lateral 

 keels ; metathorax with anterior transverse carina frequently weak or 

 entirely wanting, the anterior fourth smooth, the posterior three-fourths 

 finely areolate, frequently with distinct arcuate keels originating at the 

 insertion of the abdomen ; weak median longitudinal furrows are fre- 

 quently present, with more or less distinct lateral carinae. 



