394 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.xxh. 



19. (?) MICROTERYS DUBIUS Howard. 



Encyrtus duMus Howard, Iiis. Life, 1, 1880, p. 270, fig. 66, male. 

 EnctjrtHS dtihiosiis Dalla Torre, Cat. Hym., V, 1898, p. 257. 



Type.— Gat. No. 2704, U.S.Is.M. 



IIciMtaf. — California. 



Most. — Eliyncb. : Icerya purchasi Maskell. 



20. MICROTERYS FUSCICORNIS Howard. 



Encyrtus fuscicornis Howard, Bull. No. 5, U. S. Dept. Agric, Div. Ent., 1885, p. 13, 

 female. — Cresson, Syn. Hym. N. A., 1887, p. 239.— Dalla Torre, Cat. Hym., 

 V, 1898, p. 258. 



Type.- Cat. No. 2634, F.S.N.M. 

 Habitat. — Maryland. 



65. HOLCENCYRTUS Ashmead, new genus. 



(Type, Jjjliyciix iiiger Ashmead.) 



Eesembles both Aphycus and Blastothrix. The front wings have a 

 hairless oblique line, extending from base of stigmal vein to the hind 

 margin as in Aphycus^ but the venation is quite different: The marginal 

 vein is distinct, not punctiform, although shorter than the stigmal vein; 

 the x)ostmarginal vein is long, well developed, and a little longer than 

 the marginal and stigmal veins united. The antennae are subclavate, 

 the scape only slightly thickened towards tip, and not at all dilated 

 beneath, as in Ap)hycus ai'id Blastothrix., while all the joints of the funicle, 

 in the male, are wider than long, neither subdentate, nor with half 

 whorls of hairs, as in Blastothrix. The body, at the most, is clothed 

 with a line, sparse pubescence; the head and thorax are subopaque, 

 finely coriaceous; the frons broad; the ocelli arranged in a triangle, 

 the lateral far from the eye margin ; scrobes distinct; scutellum a little 

 longer than the mesonotum, with a delicate grooved line at the basal 

 half; metathorax very short, abrupt; abdomen small, oval, depressed, 

 scarcely two-thirds the lengtli of the thorax. 



I. HOLCENCYRTUS NIGER Ashmead. 



Jj9//2/c!i.s nir/e)' Ashmead, Ent. Amer., IV, 1888, p. 15, male. — Dalla Torrk, Cat. 

 Hym., V, 1898, p. 2.52. 



Type.— GAt. No. 4752, U.S.N.M. (Ashmead collection.) 

 HaMtat. — Florida: Jacksonville. 



66. AGENIASPIS Dahlbom. 



1857. Ageniaspis Dahlbom, Ofvers. Svensk. Vet.-Akad. Fork., XIV, p. 297. 

 1875. Holcothorax Mayr, Verb. Zool.-bot. Ges. Wien, XXV, p. 69. 



(Type, Encyrtus fuscicoUis Dalman.) 

 I. AGENIASPIS ATRICOLLIS Dalman. 



Encyrtus atrieollis Dalman, Svensk. ^^et.-Akad. Handl., XLI, 1820, p. 358, female. — 

 Nees, Hym., Ickn. afHn. Monogr., II. 1834, p. 237, female. 



