NO. 1202. GENERA OF THE ENCYETIN^E—ASHMEAD. 383 



1. PSYLLiEPHAGUS PACHYPSYLL^ Howard. 



Encyrtus jxichyjjsyllw Howard, Bull. No. 5, U. S. Dept. Agric, Div. Ent., 1885, 

 p. 15, female and male. — Oresson, Syu. Hym. N. A.. 1887, p. 239. — Dalla 

 Torre, Cat. Hym., V, 1888, p. 262. 



Type.— Cat. No. 2638, TJ.S.N.M. 



Habitat. — Maryland. 



Host. — Rliyncli. : Pachypsylla c.-gemma Riley. 



2. PSYLL^PHAGUS TRIOZIPHAGUS Howard. 



EncyrtiiH trioziphagus Howard, Bull. No. 5, U.S. Dept. Agric, Div. Ent., 18B5, 

 p. 14, female and male. — Ciiicssox, Syn. Hym. N. A., 1887, p. 239. — Dalla 

 Torre, Cat. Hym-., V, 1898, p. 265. 



Type.— Gat. No. 2036, U.S.N.M. 

 Habitat. — District of Columbia. 

 Host. — iihyiicb,: Trioza diospyri A%h\ne-A6.. 



59. COCCIDENCYRTUS Ashmead, new genus. 

 (Type, Encyrtus ensifer Howard.) 



Comes nearest to Ooeneyrtus and PsyUwpJiagus, but easily separated 

 by the longer or distinct postmarginal vein, and by the differences in 

 the antennpe, the club in female being much longer than in those two 

 genera, the pedicel shorter, and the funicle joints smaller, submonili- 

 form. In the male the flagelluin is much longer, ending in a distinct 

 club, the funicle joints about twice as long as thick, subnodose above 

 and witli half whorls of long hairs. The head is transverse, as wide 

 as the thorax, with a vertex of moderate width, not narrow, the ocelli 

 triangularly arranged, the lateral ocelli not lying close to the eye mar- 

 gin — at least their width, or a little more, from it. Abdomen short, 

 triangular, as viewed from above, with the ovipositor subexserted, the 

 sheath projecting somewhat beyond the top of abdomen. 



I. COCCIDENCYRTUS ENSIFER Howard. 



Encyrtus ensifer Howard, Bull. No. 5, U. S. Dept. Agric., 1885, p. 13, female and 

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

 1898, p. 257. 



Type.— Gat. No. 2633, U.S.N.M. 



Habitat. — Florida. 



Host. — Rhynch. : Aspidiotus corticaUs Eiley manuscrii)t. 



60. APHYCUS Mayr. 



1875. AphycHs Mayr, Verb. Zool.-bot. Ges. Wien, XXV, p. 695. 



1875. Microterys Thomson (part), Hym. Skand., IV, p. 155 [sec. ee, p. 168]. 



(Type, Encyrtus apicalis Dalmau.) 



An excellent table by Dr. Howard for distinguishing the females of 

 all the described species in this genus has been published.' The known 

 species are as follows : 



1 Proceedings of the U. S. National Museum, XXI, 1899, p. 240. 



