MONOGRAPH OF THE NORTH AMERICAN PROCTOTRYPID^. 71 



femora blackish toward base. Protliorax very long, tlatteiied, nar- 

 rowed before, shiniug, with a fine and somewhat dense i)nnctuation ; 

 mesouotiim shm^t; metathorax elongate, the sides polished, the disk 

 l)nnctured. 



Wings hyaline, the parastigma and stigma brown. 



Abdomen elongate oval, polished, black, the apex with sparse hairs. 



Habitat. — Ottawa, Canada. 



Type in Coll. Provancher. 



Perisenius floridanus Ashm. 



(PI. IV, Fi,i;-. 7,9.) 



Ent. Am., 111, p. 70. ^ 9 ; Cress. Syii. Hym., p. 247. 



$ 9. Length, 2.5 to 3""". Black, shining, finely, closely punctulate, 

 the head with some scattered, thimble-like pnnctnres. Head a little 

 longer than wide, the frontal carina not extending behind the insertion 

 of antennae Mandibles and palpi honey-yellow. Antennae 12-jointed, 

 honey-yellow, the two or three apical joints dnsky; the scape is thick, 

 less than thrice as long' as thick; flagellar joints snbmoniliform, 

 scarcely longer than thick, the last twice as long as thick. Protliorax 

 trapezoidal, longer than wide across the base; niesonotnm about as 

 long as the scntellum, the latter with a faint impressed line across the 

 base; metathorax quadrate, smooth, with a faint trace of a median 

 longitudinal carina. Wings hyaline, the costa, stigma, and parastigma 

 dark brown, the other veins honey yellow; the backward-directed 

 branch of the basal vein is not as long as the first branch of the basal. 

 Legs, except coxa' and femora, honey-yellow. 



Habitat. — Jacksonville, Fla. 



Types in Coll. Ashmead. 



Perisemus minimus, .sp. nov. 



9 . Length, 1.8 to 2'"'". Black, shining; legs brown ; anterior tibife 

 and all tarsi honey-yellow ; mandibles black; antenniiB honey-yellow, 

 the scape thick, 2i times as long as thick; pedicel longer than the 

 second fingellar joint, first flagellar joint minute; flagellar joints, after 

 the second, not longer than thick ; wings hyaline, the venation pale 

 hyaline, the stigma and parastigma brown. Abdomen pointed-ovate, 

 not longer than the head and thorax together, polished black. 



HABiTAT.^Arlington, Va. 



Type in Coll. Ashmead. 



The small size, shining surface, black mandibles, and color of the 

 legs sufficiently distinguish the species. The head is more like that in 

 Ejnjris, being longer and more narrowed than is Tisual in this genus. 



Perisemus mellipes Ashm. 

 Ent. Am., in, p. 70, 9 ; Cress. Syn. Hym., i>. 217. 

 9 . Length, 3.2"'"'. Black; the head opaque, finely, densely punc- 

 tulate; thorax smooth, shining, microscopically punctulate; legs en- 



