370 PBOCEEDINGS OF THE NATIONAL MUSEUM. vol.xxii. 



dark fuscous, their tarsi white; wings hyaline with a large fuscous 

 cloud beneath the marginal vein; abdomen yellowish at basal third, 

 aeneous black beyond and ending in a slender ovipositor which is about 

 one-half the length of the abdomen. (Antenn.e broken off.) 



Type.— Cat No. 4849, L'.S.KM. (Ashmead collection.) 



Habitat.— Flovkhi: Fort George Island. 



37. CHESTOMORPHA Ashmead, ne\v genus. 



(Type, Cliestomorplia Mformis Ashmead.) 



Head and thorax similar to Aphycus, the frons broad, convex, the 

 ocelli arranged in a triangle, the lateral ocelli as far from the eye mar- 

 gin as to the front ocellus. Eyes oval, bare, a little longer than the 

 malar space. Mandibles tridentate. Scutellum much longer than the 

 pronotum, the latter short, abrupt anteriorly. Front wings in male 

 clear hyaline, in female with a substigmal blotch or fascia; the mar- 

 ginal vein is very short, the stigmal vein fully twice as long as the 

 marginal or longer, while the postmarginal is well developed, consider- 

 ably longer than the stigmal. Antennae ll-jointed, the flagellum in 

 female subclavate, the funicle joints, or at least joints 3 to G, wider than 

 long; in male the flagellum is filiform, stout, the joints nearly thrice as 

 long as thick. 



I. CHESTOMORPHA BIFORMIS Ashmead, new species. 



Female. — Length, 1.8 ram. Ferruginous; eyes, ocelli, flagellum, 

 metanotum more or less, a large spot on dorsum of abdomen, and the 

 middle and hind tarsi, black. Wings hyaline, the front pair with a 

 fuscous discoidal blotch or baud beneath the marginal and stigmal 

 veins. 



The male differs from the female in being much more robust and 

 almost entirely black; scape brown; front legs with apices of their 

 femora, tibiiie and tarsi, honey-yellow; middle tibial spurs and first joint 

 of tarsi, white; teguhie, pale. Wings hyaline, without a discoidal 

 blotch, the marginal and stigmal veins brown. 



Type.— Gat. No. 4740, U.S.N.M. (Ashmead collection.) 



Habitat. — New Mexico: Las Oruces. (T. D. A. Cockerell.) 



38. .^NASIUS Walker. 

 1846. JEnasius Walker, Ana. and Mag. Nat. Hiat., XVII, p. 180. 

 (Type, jiEnasius hyettus Walker.) 



I. .ffiNASIUS HYETTUS Walker. 



Encyrtus {JEnaslus) hyettus Walker, Ann. and Mag. Nat. Hist., XVII, 1846, p. 



181, female. 

 /Enasius hyettus Howard, Journ.Linn. Soc. Lond. Zool., XXV, 1894, p. 89, female 



and male.— Dalla Torre, Cat. Hym., V, 1898, p. 229. 



Habitat, — West Indies: Grenada, St. Vincent. 



