264 [April 



3. Cteniscus abdominalis. n. sp. 



Black: face, mouth, lower part of cheeks, pectus, tegulse and scutellums, yel- 

 lowish; apex of antennfe, most of legs and abdomen ferruginous, the latter 

 yellowish at tip ; wings hyaline. 



Female. — Head black, shining, densely and minutely punctured, 

 thinly pubescent; face, inner orbits not reaching the summit of the 

 eyes, clypeus, lower part of the cheeks, mandibles except extreme tips, 

 and the palpi, pale yellowish ; antennae nearly as long as the body, 

 fulvo-ferruginous, the basal half above and the base beneath, dusky. 

 Thorax black, polished, slightly pubescent ; lower margin of prothorax, 

 two spots on the anterior margin of pleura, pectus, tegulae and a short 

 line beneath, yellowish ; scutellum not prominent, yellowish, pubescent; 

 postscutellum yellow ; metathorax black, shining, subobsoletely rugose, 

 the elevated lines well defined, the central area large, quadrate. Wings 

 hyaline, iridescent ; nervures and stigma fuscous; areolet triangular. 

 Legs yellow; the four anterior femora tinged with ferruginous; the pos- 

 terior coxae ferruginous, yellowish at tips, their femora rufo-ferruginous, 

 black at extreme base and apex, their tibiae and tarsi blackish, the for- 

 mer ferruginous about the middle. Abdomen clavate, smooth and shin- 

 ing, pale ferruginous or honey-yellow ; narrow apical margins of the 

 second and third segments, and most of the remaining segments ob- 

 scure yellowish. Length 4J lines; expanse of wings 7 lines. 



One specimen. 



Genus TROGTJS. Grav. 



1. Trogus flavipennis, Cresson. 



Trogus flavipennis, Cresson. Proc. Ent. Soc. Philad. iii, p. 287. 



One specimen. 



2. Trogus flavitarsis, n. sp. 



Black; face white ; tarsi yellow ; wings fuliginous. 



Male. — Black, opaque, very closely and finely punctured ; the face, 

 clypeus except anterior middle, labrum, and a spot on mandibles, whitish ; 

 palpi pale, blackish at base ; face narrow ; antennae as long as the body, 

 entirely black, very slender at tips, the joints prominent on their mid- 

 dle, giving the antennae a subserrate appearance. Thorax densely punc- 

 tured, the dorsal lines of the mesothorax well impressed ; scutellum 

 obtusely elevated, with a very deep excavation in front bordered on 

 each side by a sharply defined carina ; metathorax coarsely rugose, the 

 elevated lines rough and well defined, the central area moderate, quad- 

 rate ; on each side of the metathorax posteriorly a short obtuse, com- 

 pressed tubercle ; tegulae shining black. Wings fuliginous, the ante- 

 rior pair with an obscure violaceous reflection, the posterior pair some- 



