MONOGRAPH OF THE NORTH AMERICAN PROCTOTRYPID^. 353 



as the first flagellar joint; pedicel not much louger than wide, narrowed 

 at base; first flagellar Joint about half the length of the scape, the fol- 

 lowing joints shorter. Thorax with 2 nearly parallel grooves, and be- 

 tween them anteriorly are 2 abbreviated grooves. Mesopleura smooth, 

 polished, with a deep depression at the middle, terminating in a large 

 fovea posteriorly. Scutellum smooth, rounded ofl" posteriorly, and with 

 a large quadrate fovea across the base. Metathorax smooth, tricari- 

 nated. Wings hyaline; veins brown; the marginal vein about as long- 

 as the short, triangular, closed marginal cell; the first branch of the 

 radius is about one-third as long as the marginal vein, straight. Legs, 

 including the coxie, brownish-yellow, the posterior pair slightly obfus- 

 cated. Abdomen conic-ovate, brownish-piceous, shining; the petiole is 

 about two and a half times as long as the metathorax, black, opaque, 

 and fluted. 



Habitat.— West Cliff, Colo. 



Type in Coll. Ashmead. 



Described from a single specimen captured by T. D. A. Cockerell. 



Miota aiuericai>a Aslim. 



Psilomnui (imcrica)ia Aslnu., Can. Eut., xix, p. 197. 



S . Length, 3""". Slender, polished black, pubescent. AnteunjE 

 and legs pale brow^uish-yellow, or honey-yellow, the former dusky at 

 tips. Collar above rufous. Eyes nearly bare. Antennae 14-jointed, 

 setaceous, as long as the body, pubescent; the first flagellar joint is 

 fully as long as the scape, excised at basal half, the following joints all 

 long, but subeqnal with the first. Metathorax carinated, pubescent. 

 Wings subhyaline, the venation pale brown, the marginal cell shorter 

 than the marginal vein, the first branch of the radius straight, 

 one-third the length of the marginal vein. Abdomen rufo-piceous, the 

 petiole very long, fully thrice as long as the metathorax or nearly 5 

 times as long as thick, shining but w4th grooved lines; body of the 

 abdomen pear-shaped, very little longer than the petiolg. 



Habitat. — Jacksonville, Fla. 



Type in Coll. Ashmead. 



ACROPIESTA Forster. 



Hym. Stud, ii, p. 131 (1856). 



(Tyiie J. collaris Forst.) 



Head transverse, or subglobose, the vertex convex, theocciputstraight, 

 margined ; ocelli 3, very small, arranged in a triangle ; eyes oval, sparsely 

 pubescent. 



Antenna? inserted on a frontal prominence; in $ 15-jointed, subcla- 



vate, submoniliforin, the scape slightly bent, extending beyond the 



ocelli, pedicel rounded, first funiclar joint about twice as long as thick, 



subcylindric, narrowed at base, truncate at tip, the joints beyond all sub- 



21899— No. 45 23 



