394 PROCEEDINGS OF THE ACADEMY OF 



form ; thorax rather strongly and very closely punctured ; scu- 

 telhim rugose, sides very strongly reflexed and acutel}' produced 

 behind, the tooth bent downward, apex of scutellum truncate ; me- 

 tathorax with moderately distinct elevated lines; posterior femora 

 robust; abdomen elongate, clavate, first segment much longer 

 than broad, with several acute, longitudinal carinre, remaining 

 segments with a medial longitudinal carina, the second and third 

 very coarsely and confluently punctured, the remaining segments 

 gradually less coarsely sculptured. Length 5^ lines. 

 Orizaba. (Sumichrast, No. 35.) 



Genus EPIRHYSSA, Cresson. 



Epirhyssa mexicana, n. sp. 



9. Lemon-yellow; line on vertex from e3''e to eye and covering 

 ocelli, sutures of mesothorax, basal sutures of scutellum and of 

 metathorax, tarsi, and narrow apical margin of abdominal seg- 

 ments, fuscous; antennae black; wings yellow-hyaline, dusky at 

 tips, the anterior pair with a fuliginous spot at apex. Shining, 

 smooth; mesothorax coarsely, transversely rugose. Length 8-10 

 lines. 



Orizaba; Cordova. 



* Genus EPIIIALTES, Grav. 



Ephialtes atriceps, n. sp. 



9 Pale ferruginous; head, antennae, most of prothorax, 



sutures of thorax above, and transverse spot on lateral apical 

 margin of second and three following abdominal segments, black; 

 scape beneath, tegulae, line before and most of legs, white ; poste- 

 rior coxae and femora except tips, pale hone3'^-yellow; line on four 

 anterior femora above and the tarsi dusky; wings hj'aline, irides- 

 cent. Elongate, narrow, smooth, and shining; head subglobose; 

 antennae short, slender; metathorax smooth, rounded; abdomen 

 subsessile, very long, of uniform width, segments 2-5 above with 

 a swelling on each side of middle; areolet subtriangular. Length 

 6^ lines. 



Orizaba. 



