MONOGRAPH OF THE NORTH AMERICAN PROCTOTRYPID.E. 83 



the anterior pair greatly lengthened ; femora obelavate, the front i)air 

 the stoutest; tibiie very long and slender, very little thicker at tips 

 than at the base; anterior tarsi (;helate, middle and posterior tarsi, 

 5-jointed, shorter than their tibiae, the claws and pulvilli small. 



This genus is readily distinguished from all the other genera in the 

 group by its peculiar shape, the strong constriction between the meso- 

 and meta- thorax, the absence of wings and scutellum, and the nuich 

 longer and more slender tibije. In its cephalic and antennal charac- 

 tiirs it api»roaches nearest to DryluKs, but otherwise it is (piite differ- 

 ent, that genus having wings, a distinct large scutellum, and is without 

 the strong constriction between the meso- and nu'ta- thorax. 



The male is unknown, but I have reasons for believing that the genus 

 Labi'o Ilaliday, known only in the male sex, will yet prove to be the 

 opposite sex of this peculiar genus. 



Mr. Canteron, in IJiologia Centrali Amer'^ana, has described two or 

 three species that he sui)posed were wiuj .s males, but as these so- 

 called males have chelate claws, I suspect ne has mistaken females for 

 males, as all the males in this group known to mo have simple, not 

 chelate daws, the chelate dawsbeing a character peculiar to the females. 



Our species may be tabulated as follows: 



TABLE OF SPECIES. 



KEMALKS. 



Species more or less brown or jtale lirownisli-yellow 2 



Species, excepting a portion of the Iie.id, black. 

 Thorax punctnlatc. 



Head not twice as broail as Imij;; nictatborax, anteriorly antl posteriorly, 

 transversely striate'!. 

 Occiput, face, and two basal joints of autennic, yellow, rest of antenna^ 



fuscous (i. coNTOKTiLis, Patton. 



Head twice as broad as lonjf ; metatborax, anteriorly and posteriorly, trans- 

 versely striated. 

 Occiput, face, and antenna', excei)t tbe tbret* terminal joints, yellow. 



G. Fi,AViKi:(>NS, sji. nov 

 Thorax i>olisln'd, shining. 



Head entirely black (;. dkciimkns, I'rov. 



2. Abdomen iilack ; head and tliorax dark reddish-brown. 



Metatborav coarsely transversely striated; autenua' yellow; loj;s piceous or 



brown, the coxa- and tarsi ycdlow (>. iAi,ii'<»itxi<rs, sp. nov. 



Abdomen i>iceons; head, tliorax, and Icjis jiale or yellowish. 

 Metatborax smooth, i)olished, with only a few faint, transverse striae 



(i. iiicoLOK, sp. nov. 



Oonatopus contortulus Patton. 



Can. Knt. xi, p. m (1879), 9 ; Asbni. Ent. Am. iii, p. 74- Cress. Syn. Hym., p. 246. 



" 5 . Length .3.5'""'. Head testaceous, maiuiibles and scape of an- 

 tenna' white; the teeth of the mandibles, second joint of the anteiune, 

 and a line on the scap«' posteriorly, pale testaceous, remainder ol' an- 

 teuua) fuscous. A large fuscous spot on the uuder side of head, aud 



