MONOGKAPH OF THE NORTH AMERICAN FBOCTOTRYPID.E. 287 



tellum convex, with a subobsolete tuben^le at tip; iiictapleiira opaque, 

 sparsely pubescent; metanotuni subpubescent. Legs entirely black, 

 the tarsi piceous. Teguhe black. Wings clear hyaline. Abdomen ovate, 

 petiolate, as long as the thorax, the petiole and the base of second 

 segment Kstriated, the third, fourth, tifth, and sixth segments with a 

 transverse row of tine punctures. 



Habitat. — Washington, D. C. 



Type iu Coll. Ashmead. 



Synopeas rufipes. sp. uov. 



(PI. XII, Fig. 5, $.) 



i . Length, 1.5""". Subrobust, black, polished ; the head posteriorly 

 transversely striated, the face very faintly punctured; lateral ocelli one 

 and a half times their width from the margin of the eye. Antenna 10- 

 jointed, pale brownish yellow, the o-j( tinted club black; pedicel longer 

 than the second funidar joint, first and third funiclar joints small, the 

 second the smaller, the club joints oval-moniliform. Mesouotum, with 

 the parapsidal furrows distinct posteriorly, the base of the middle lobe 

 projecting slightly upon the scutellum. Teguhe black. Wings hyaline. 

 Legs rufous, the coxa? black. Abdomen ovate, a little longer than the 

 thorax, the petiole and the foveolai at base of the second segment stri- 

 ated. 



Habitat. — Arlington, Va. 



Type in Coll. Ashmead. 



Synopeas inernus \8bm. 

 Bull. No. 1, ColL Bioi. Assoc, p. 10. 



5 . Length, 1.4""". Black, alutaceous shining. Antennae 10-jointed, 

 reddish, the pedicel twice as long as thick, the three tollowing joints 

 very slender, cylindrical, the first two about e<iual in length and twice 

 as long as thick, the third hardly half as long as the second, the fourth 

 short but stouter, not longer than thick; the four following joints, com- 

 prising the club, are much stouter ; the first of these is the shortest, the 

 second and third about twice as long as thick, the fourth, or terminal 

 joint, being the longest and more than twice as long as thick; these 

 joints are slightly pedicellate. 



Thorax with grooves only faintly indicated. Mesopleura smooth and 

 only slightly impressed on the disk. Metapleura and petiole hairy. 

 Legs, including coxae, honey yellow, the tarsi, except the terminal 

 joint, pale or whitish. The abdomen is about one-third longer than the 

 head and thorax together, prolonged into a point at apex, the second 

 segment occupying fully more than one-half of its whole surface, the 

 segments beyond nearly equal. Wings hyaline, pubescent. 



Habitat.— West Cliff, Colo. 



Type in Coll. Ashmead. 



Described from a specimen received from Mr. T. D. A. Cockerell. 



