MONOGRAPH OF THE NORTH AMERICAN PROCTOTRUPID^. 335 



AuteuiiiP honey yellow, slightly dusky at apex and reaching- the base of 

 the abdomen; second flagellar joint about two-thirds the length of 

 the first, about 2i times as long as thick, the four following joints 



equal, as long as the second; cauda short P. obsoletus Say. 



Middle keel extending to the base of the petiole. 



Second flagellar joint half the length of the tirst, 2i times as long as thick, 

 the following joints, except the last subequal; cauda short. 



P. Belfragei, sp. nov, 

 Metanotum on each side of the median keel rugose. 



Middle keel ending at the superior edge of the posterior face. 



Second flagellar joint thrice as long as thick, two-thirds the length of first, 

 following joints excei)t the last gradually shortening; cauda short. 



P. TEXANUS sp. nov. 

 Middle keel extending to the base of the petiole. 

 Second flagellar joint 4 times as long as thick; abdomen ending in two 

 spines, ^ P. carolinensis, sp. nov. 



6. Head with a frontal carina between the antennae. 



Meta thorax not twice as long as high 7 



Metathorax twice as long as high. 

 Head a little longer than wide. 

 AutenuiB and legs rufous, the coxa? black basally. 



Antenn;e longer than the head and thorax, the first flagellar joint one- 

 third longer than the second, the others at least thrice as long as 

 thick, 9 P. LONGiCEi'S, sp. nov. 



7. Antenna- and legs, unless otherwise mentioned, rufous or reddish yellow, coxie 



more or less dusky basally. 

 Head a little larger than wide; antenu* brown. 



First flagellar joint not longer than the second, shorter than the scape, the 

 others about twice as long as thick, the last twice as long as the 



penultimate, $ P. canadensis, sp. nov. 



Head not longer than Avide. 

 First flagellar joint, not or scarcely longer than the second, the others three 

 times as long as thick, 9 • (Coxje sometimes whollj^ pale.) 



P. siMULANS, sp. nov. 

 First flagellar joint distinctly longer than the second. 

 Flagellar joints 2 to 6 at least thrice as long as thick, 9 . 



P. MEDius, sp. nov. 

 Flagellar joints 3 to 10 only a little longer than thick, 9 • 



P. QUADRICEPS, sp. nov. 



All cox:e black, the femora piceous. 



Antenna' slightly thickened towards apex, dusky, the first flagellar joint 

 one-third longer than the second, joints 2 to 10 scarcely longer than 

 thick, 9 P. FEMOKATUS, sp. nov. 



Proctotrypes caudatus Say. 



(PL XIII, Fig. 7, 9.) 



Lee. Ed. Say's Works, i, p. 21; Ashm., i:nt. Am., m, p. 98; Cress., Syn. Hyin., p. 248. 



P. (r(HM7«/«s Pattou, Can. Ent., xi, p. 04 (1879); Ashm. loe. cit., p. 99; Cr. loc. 

 cit. (supra), p. 248. 



S 9 . Length, 7 to 10 """. Ovipositor as long as or a little longer than 

 the abdomen. Keddish testaeeous; metathorax black, upper i)art of 

 niesopleura and the vsutures often black; head and thorax smooth, shin- 

 ing; collar a little Avrinkled or grooved at sides; metathorax elongated, 

 rouuded behind, longitudiually rugulose and reticulated with coarse 



