MONOGIUPH OF THE NORTH AMERICAN PROCTOTKYPID.E. 171 



deepbliutk; all le^^s and antennae hoiH-y-yellow; all coxa* black, litter 

 at tips; scape brownish and pedicel darker than club. 



" ,5 . Differs from female only in antenna;, which are plaiidy 12- 

 jointed; joint 1 of funicle sis lonj; as pedicel, Joints 2 to 7 subequal in 

 lenjith and width, and each as broad as long, and well separated; club 

 oval, nearly as long as three preceding joints together. Antenuiu uni 

 fonnly honey-yellow." (Hoirard.) 



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



Types, 1> (? and 1 9 in National Museum. 



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

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

 8((iH« pulex. "The eggs of this spider are a little more than a milli- 

 meter in circumference, and eaph egg harbors but one parasite, whudi 

 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 sjjider egg-sac found under the bark of a log, in 

 October, 1884. 



Acoloides Howardii, sp. nnv. 



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

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

 the coxa' black. Antenuji; 7-jointed, brown, the pedicel large, the tirst 

 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, subconvex. Meso- 

 pleura with a long, femoral furrow, crenate 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 micros<'opically punctate, and finely 

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

 low; the second and following segments bla^k, the second with striai 

 at base. 



Habitat. — Washington, D. C. 



Types in (^oU. 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 tlagellar 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 

 Xtimctulate ; antennae brown-hlack, the scape pale at extreme base; legs, including 

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



