1868.] 169 [Ci-Gsson. 



mimitely punctured, with very sliort hoary pile; first segment pol- 

 ished; apical margin of all the segments Avith a broad, e^en fascia of 

 very short dense white pubescence. Length four lines. 



Hah. Illinois. Dr. Samuel Lewis. (Coll. Am. Ent. Soc.) 

 Readily distinguished by the small size and short, dense, hoary 

 pubescence. 



§ §. Speck'ii from Mexico and Cuba. 



11. C. azteea, n. sp. ?. Black; head densely clothed with 

 pale ochraeeous pubescence, that on vertex orange-yellow; clypeus 

 coarsely punctured; Hagellum dull testaceous beneath; mesothorax 

 and scutellum clothed with a short, dense, fulvo-ferruginous pubes- 

 cence, tiiat on tlie thorax beneath and on metatborax thin and pale 

 ochraeeous; tegulae testaceous, wings hyaline, nervures brown; legs 

 slender, black, with long, pale ochraeeous pubescence ; abdomen short, 

 ovate, convex, shining, with close, fine, distinct punctures; base of 

 first segment with a thin, pale ochraeeous pubescence, and apical mar- 

 gin of the segments, except the last, with a broad, entire fascia of 

 dense whitish pubescence. Length four lines. 



Hah. Orizaba, Mexico. Prof F. Sumichrast. (Coll. Am. Ent. 

 Soc.) 



This is easily recognized by the color of the pubescence of the 

 upper surtace of the thorax, which is of a rich fulvo-feiTuginous. 



12. C. aethiops, n. sp. 9. Robust, deep black, shining; head 

 and thorax closely and deeply punctured, clothed with short, dense, 

 black pubescence, slightly mixed with pale on face and cheeks; 

 clypeus with large, deep punctures, apex subeniarginate; metathorax 

 rugulose, more coarsely so at base; wings hyaline, faintly dusky, 

 especially at apex, nervures black; legs robust, with black, tarsi with 

 pale, pubescence; abdomen broad at base, rapidly narrowed to apex, 

 convex, delicately punctured, almost polished and nearly nude, having 

 a thin, palish pubescence on apical margin of the segments, especially 

 obvious on the sides. Length five lines. 



Hah. Orizaba, Mexico. Prof F. Sumichrast. (Coll Am. Ent. 

 Soc.) 



13. C. punetipennis, n. sp. ?. Robust, black; head closely 

 punctured, clothed with dense whitish pubescence, longest on cheeks, 

 and mixed with black on vertex; clypeus nude, depressed, coarsely 

 and confluently punctured; iabrum polished, bifbveolate at base, 

 iringed beneath with golden pubescence; mandibles piceous: thorax 

 densely punctured, clothed with short, dense, white or hoary pubes- 



