MONOGRAPH OP THE NORTH AMERICAN PROCTOTRYPID.E. 187 



Thorax fiiu'ly, i losely iiuuctate; the K(iit<'lliiui binuotli, jiolisbed. 



First au<l second funicbir ,juiiit.s loii^ e<]ual, about 5 times as long as thii'k; 



legs pale brownish-yellow P. graciucoknis, sp. uov. 



5. Legs rufons. 



Thorax and scntellnm rngoae, opaque. 



Inner orbits and lower parts of face and the cheeks striate; wings hyaline. 



V. LiNKM.ii, s|». nov. 

 Thorax and scntellnm sparsely pnnctate, shining. 



Inner orbits and lower i»art of face striate; wings fns<'ons. 



P. KKYTHROPUS, Sp. HOV. 



Legs yeHow. 

 Thorax and scntellnm rngnlose, opaqne. 



Head polished, inner orbits and lower part of face striate; wings hyaline; 



vo\n' yellow P. ki.avicoxa, sji. ni»v. 



Thorax and scntellum coarsely rugnlose, opaqne. 



Head polished, inner orbits not striate, wings snbfnscous, hind coxa' black. 



P. AMEKICAXA, Asluu. 



Thorax punctate, shining, with indications of furrows posteriorly; the scntel- 

 lnm smooth. 

 Head polished, the lower part of face and cheeks striate; wings hyaline; 

 peticdc t>f abdomen yellow P. ki.avopetiolata, sjt. m)v. 



MALES. 



Antenna* not wholly black 2 



Antennae wholly black. 

 Legs wholly bla<k ; face longitudinally striated. 

 Anteima' shorter than body, tirst flagellar joint less than four times as long 



as thick P. nigkipes, sp. nov. 



Legs brownish-yellow. 

 Antenna' much longer than the body, first flagellar joint 6 times as long as 

 thick P. STRIATIFHONS, sp. nov. 



2. Fiist flagellar joint not a« long as the Mcape 3 



First flagellar joint longer than the scape. 



Thorax finely rugose, smoother on shoulders; scntellnm smooth, with punctures 

 at base. 

 Legs brownish yellow, middle tarsi and posterior tibJi' and tarsi, fuscous, 



P. CAKABOKl'.M, Kiley 



3. Thor.ax closely punctate or rugose 4 



Thorax smooth, shining, faintly punctate; legs brownish-yellow. 



First flagellar joint 4 times as long as thick, a little shorter than the following: 

 Frons polished. 

 Third abdominal segment not acicnlat« or pnnctate; petiole black. 

 i, P, COH'MBiAXA, sp. nov. 



Third abdominal segment smooth, im])nnctate; petiole yellow. 



P. FI.AVOI>F/ri()LATA, 



Frons striated. 



Third abdominal segment finely acicnlated and pnnctate; petiide dull 

 nifons P. MACRocEUA, Ashm, 



4. First flagellar joint .shorter than the second. 



Thorax and scntellum closely pnnctate, shining. 



Lower part of the face striate; mandibles large, yellow. 



P. XANTHOGNATHA, Sp. nOV, 



Thorax rugose, opaipie or subopaiinc, pnbescent. 



Frons hnigitudinally striate; nnindibles and legs rufons, 



P, MARYLANDICA, sp. noV. 

 First flagellar joint longer than the second, abdinuen longitudinally striate*!. 



P. srUlATlVENTKIS, sp. UUV. 



