172 BIUJ^KTIX 45, T'NITED STATKS NATIONAL Mt\SET'M. 



apital imirgiiis of fliiid, and the folJowiii!; stM;iuents. t'nscous or black. Head very 

 wide, more than three times as wide as tliiek antero-posteriorly ; eyes hirge, rounded, 

 whitish (after death) and pubescent; niandibh-s i)ak'. rufous, the tips bhick. An- 

 teunal club larj^-e, fusiform, as lou<«- as the pedicel and funicle united; first funicle 

 joint less than half the length of the pedicel, thi^ other joints transverse. Thorax 

 convex, with two punctate lines in front of the scutellum, the latter semicircular, 

 convex; metanotum very short, striated, l)ouude(l by a carina posteriorly, the angles 

 produced into a minute tooth. Wings snbhyaline, pubescent, extending beyond tip of 

 abdomen, the venation dark brown, the marginal vein short, stout, very little longer 

 than thick, the stigmal long, slender, ending in a small knob. Abdomen oblong- 

 oval, one-third longer than the head and thorax together, microscopically sculptured, 

 but lustrous, the first and second segments about equal in length, striated. {Howard.) 



Habitat. — Massacbusetts. 

 Type iu National Museum. 



Described tVoiii seven 9 speciinens, risirert by ]\Ir. J. H. Emertoii, 

 from a spider's cocoon. 



Acoloides bicolor, sp, nov. 



9 . Len^tli, 0.8'""\ Black, shining, sparsely, faintly microscopically 

 punctate and pubescent; tbe abdomen, antennae, and legs, yellow, the 

 third abdominal segment across the base, two apical segments and the 

 femora .slightlj' fuscous or brownish ; eyes large, rounded, whitish. An- 

 tenna? T-jointed, very short; the club large, conic-ovate, as long as the 

 pedicel and fnnicle together; the first funiclar joint not longer than 

 thick, about one-fourth the length of the i)edicel, the three following 

 joints minute, transverse. Wings hyaline, with a faint yellowish tinge, 

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

 men rotund, the petiole short, striated, rest of the segments smooth, 

 shining. 



Habitat. — Ottawa, Canada. 



Type in Coll. Ashmead. 



Described from two si)ecimens received from Mr. W. Hague Har- 

 rington. This species is much smaller than the others, the surface 

 smoother, less distinctly punctate, and the abdomen more rotund; 

 Avhile the color of the eyes and abdomen, and the shortness and relative 

 length of the joints of the antennic, render it easy of recognition. 



Acoloides melleus, sp. nov. 



9 . Length, 1.4""". T^niformly honey-yellow, the eyes and ocelli 

 brown, the wings subfuliginous. The head is very large and wide, the 

 lower part of face being longitudinally striated. Antenna? short, 7- 

 jointed, the dub large fusiform, inarticulated; the first funiclar joint 

 is twice as long as thick and fully half as long as the pedicel; the 

 second and third are as long as wide; the fourth, transverse. 



Abdomen oval, the first segment and the second, at the sutiue, 

 striated, the following segments feeldy, microscopically puiictate. 



Habitat. — Arlington, Va. 



Type in Coll. Ashmead. 



