10 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 7T 



second discoidal cell unusually broad; first tergite very short and 

 broad, flattened above. 



ODONTOMERUS MELLIPES (Say) 

 Figs. 1&, 2«, 3a, and ft 



Anomalon mellipes Say, Contrib. Maclur. Lye. Phila., vol. 2, 1828, p. 75 



(LeConte Ed., vol. 1, p. 378), female. 

 Odotitomerus mellipes Cbesson, Trans. Amev. Ent. Soc, vol. 8, 1870, p. 168. 

 Odontomerus errans Ron wee, Proc. U. S. Nat. Mus., vol. 45, 1913, p. 360,, 



female. 

 Odontomerus mellipes Bkadley, Bull. Brooklyn Ent. Soc, vol. 13, 1918, p. 103,. 



female, male (part). — Rohweb, Proc. U. S. Nat. Mus., vol. 57, 1920, p. 458,. 



female, male (part). — Wallet, Can. Ent., vol. 59, 1927, p. 74 (part). 

 Odontomerus canadensis Rohwer, Proc. U. S. Nat. Mus., vol. 57, 1920, p. 458,. 



male (part), 



This is the '?jieUipes of Rowher's neotype. 



The characters of the tarsi and antennae as employed in the fore- 

 going key are far more reliable than the characters of the head 

 and first tergite used by Rohwer. 



Female. — Head distinctly broader across temples than across eyes 

 but temples not distinctly flaring; face and base of clypeus densely 

 punctate, temples sparsely so, apex of clypeus transversely rugulose ; 

 postocellar line much shorter than ocell-ocular line; facial quad- 

 rangle at least as broad as long; antennae stout, strongly tapering 

 toward apex, much shorter than body, first joint of flagellum hardly 

 twice as long as thick at apex and fully a half longer than second,, 

 other joints all much less than twice as long as thick, middle joints 

 little longer than thick, those toward base much thicker at apex than 

 at base. Thorax polished, mesoscutum, scutellum, upper margin of 

 pronotum, lower mesopleurum and sternum finely and sparsely 

 punctate, metapleurum irregularly rugulose opaque; propodeum 

 polished and usually more or less pimctate dorsally, more rugulose 

 and subopaque laterally ; legs very stout, hind femur nearly or quite 

 half as deep (measured across apex of tooth) as long; hind tarsus 

 much shorter than tibia, apical joint nearly twice as long as second,, 

 that of middle leg more than twice as long as second, front tarsus 

 exclusive of claws very little longer than tibia. Abdomen rather 

 stout, subpolished; first tergite hardly two and a half times as long^ 

 as broad at apex, evenly arched above, longitudinal striate laterally, 

 the striae bending inward posteriorly and sometimes crosses over the 

 middle, sternite extending only a short distance beyond the spiracle ; 

 second tergite more or less transversely wrinkled at base; apical 

 tergites very finely pilose and punctate ; ovipositor sheath ordinarily 

 slightly shorter than body. 



Black; apical portion of clypeus and labrum reddish; flagellum 

 brown ; palpi f usco-luteous ; wings dilutely inf umate ; legs testaceous,. 



