MONOGRAPH OF THE NORTH AMERICAN PROCTOTRYPID.E. 93 

 TABLE OF SPECIES. 



FEMALES. 



Entirely black, the logs rufous 2 



FerrugiuouH, abdonieu iilouo black. 



Wings liyalinr, with a fuscous band beneath stigma ('. atkiviontuis Cr. 



2. Wings hyaline, with a fuscous liand beneath the stigma. 



Clypeus rufous; mandibles rufous, 4-dentate C. uensiiawi sji. uov. 



Clypens black; mandibles white, 3-deutate C. canadensis sp. nov. 



Chelogynus atriventris Cress. 



Dnjinus airiceiitris Cr., Trans. Am. Ent. Soc, iv, ]>. 198, 9 ; Ashm., Ent. Am., 

 Ill, p. 74; Cr., Syn. Hym., p. 246. 



9. Leugtli, 4.5""". FeiTugiiious, with piilc glittering- pubescence; 

 Lead much broader than tliorax; face, mandibles, and base of scape 

 beneath, pale yellowish; tips of antennje blackish; pleura with dense 

 silvery pubescence; metathoraN; rugulose, posterior face depressed and 

 transversely aciculated; wings hyaline, with a dusky band beneath 

 stigma; posterior tibiae blackish at tips, their tarsi pale; abdonieu 

 black, smooth, and i)olislied. 



Habitat. — Texas. 



Type 9 in Coll. Amer. Ent. Soc. 



Chelogynus Henshawi up. nov. 



9. Length, 5""". Black, shining; head and prothorax finely rugose ; 

 inesonotuni and scutellum smooth, polished; metathorax coarsely ru- 

 gose. Autennte and legs pale rufous; the G terminal joints of the 

 antennae fuscous, and the posterior femora towards apex above have a 

 large black spot. The antenna^, are 10-jointed, filiform, the first flagellar 

 joint the longest, about one-third longer than the scape. Cljqieus and 

 mandibles rufous, the latter 4-dentate. Mesonotum with two sharply 

 defined furrows. Teguhie rufous. Wings hyaline, with two fuscous 

 bands, oue at the basal nervure, the other below the upper half of the 

 stigma; veins pale brown. Anterior femora nuicli swollen, the tarsi 

 with large pincher-like claws, as long as the tibia?, and fringed with stiff 

 bristles on the inside. 



Habitat. — Milton, Mass. 



Type 9 in Coll. Ashmead. 



Described from a single specimen received from Mr. Saral. Hensliaw. 

 It is the only species I have seen with 4-dentate umndibles. 



Chelogynus canadensis sp. uov. 



(PI. VI, Fig. 1, 9.) 



9 . Length, 2.5""". Black ; head and collar very finely punctate, 

 the mesonotum and scutellum smooth, the former with two furrows; 

 metathorax rugose. Face sparsely covered with glittering silvery 

 hairs. Mandibles and palpi white. Antenna' 10 jointed, brown, the 

 first flagellar joint about half the length of the scape, the remaining 



