MONOGRAPH OF THE NORTH AMERICAN PROCTOTRYPID.E. l7l 



deep black; all legs ami aiiteiiiue honey-yellow; all coxje black, litter 

 at tips; scape brownish and pedicel darker tlian clnb. 



" $ . Differs from female only in auteume, which are plainly 12- 

 joiiited; joint 1 of fuuicle as long as pedicel, joints 2 to 7 subequal in 

 length and width, and each as broad as long, and well separated; clnb 

 oval, nearly as long as three preceding joints together. Antennae uni- 

 formly honey-yellow." {Hoirard.) 



Habitat. — Lincoln, Nebr., and Oxford, Ind. 



Types, 1> f? and 1 9 in National Musenm. 



The types of this species, as recorded by Mr. Howard, were reared 

 by Mr. L. Bruner, at Lincoln, Nebr., from the eggs of the Araneid 

 Saitis pnlex. "The eggs of this spider are a little more than a milli- 

 meter in circumference, and each egg harbors but one parasite, which 

 issues by splitting the eggs open rather than by gnawing a regular 

 hole." The same species was also bred by Mr. F. M. Webster, at Ox- 

 ford, Ind., from a spider egg-sac found under the bark of a log, in 

 October, 1884. 



Acoloides HoTwardii, sp. nov. 



9 . Length, 1""". Black, shining, with a microscopic white pile, 

 and feebly microscopically punctate; petiole and legs, brownish-yellow, 

 the coxjc black. Antennae 7-joiuted, brown, the pedicel large, the first 

 funiclar joint very little longer than thick, scarcely one-third the length 

 of the pedicel, the three following joints transverse, the last the widest, 

 club large, not jointed. Scutellum semicircular, subc(mvex. Meso- 

 pleura with a long, femoral furrow, creuate at bottom. Metapleura 

 divided into two parts by the spiracular furrow, the upper portion 

 smooth, impunctate, the lower portion punctate. Wings subhyaline, 

 the nervures brown, the stigmal vein long, thickened at base. Abdo- 

 men broadly oval, shining, but microscopically punctate, and finely 

 pubescent, the first segment twice wider than long, striated and yel- 

 low ; the second and following segments black, the second with striie 

 at base. 



Habitat. — Washington, D. C. 



Types in (Joll. Ashmead. 



Described from two specimens. 



This species is closely allied to A. saitidis How., but it is slightly 

 smaller, and not so densely punctate, the scutellum shorter, subconvex, 

 the petiole yellow, while the first flagellar joint is scarcely one-third 

 the length of the pedicel. 



Acoloides Emertonii How. 



Ins. Life, iv, p. 202. 



9. Length, 1.4"!'"; expanse, 1.5""". Black, shining, bnt closely microscopically 

 punctulate; antenu:e hrown-hlack, the scape pale at extreme base; legs, iiicliuliug 

 coxa% brownish-yellow; abdomen mostly yellow, the second segment, lateral and 



