AMERICAN COLEOPTERA. 73 



A. soccifer Lee. — Form elongate, pale brownish, clothed with short pale 

 pubescence, body beneath and legs paler than the upper surface. Thorax 

 feebly convex rather sparsely punctate, hind angles slightly divergent, the 

 carina fine and close to the margin; flanks of prothorax beneath not densely 

 punctured with a smooth space posteriorly; prosternal mucro flexed, meso- 

 sternum inconspicuous. Elytra feebly striate, striae punctured, intervals feebly 

 convex, punctulate. Length .54 inch ; 14 mm. 



Of" this species I have seen but two males, the thorax is longer than 

 wide, narrowed in front, the sides verj nearly straight. 



From its elongate form this insect bears a closer resemblance to 

 Athous (especially Ath. /erruginosus), than to the present genus, the 

 resemblance is still further increased by the longer antennas. 



Occurs in New Mexico. 



A. iiidistiiictns Lee. — Piceous moderately shining, sparsely clothed with 

 greyish pubescence. Thorax moderately convex, and shining, very sparsely 

 and finely punctulate, hind angles slightly divergent and with a moderate 

 carina parallel with the margin; flanks not densely punctate, a smooth space 

 posteriorly; mucro flexed, mesosternum not conspicuous. Elytra striate, strise 

 punctured, intervals moderately convex, sparsely punctulate. Length .44 

 inch ; 11 mm. 



The two specimens before me are males. The thorax is longer than 

 wide, slightly narrowed in front, sides very feebly arcuate. 



This species might be mistaken for a variety of dcculoratus, but 

 the thorax is very much less evidently punctured and the prosternal 

 mucro flexed. It bears no resemblance whatever to M«'i;i;/oH<'«s near 

 which it is placed in the table, except in the technical characters 

 there made use of. 



Occurs in Georgia and South Carolina. 



A. decoloratus Say. — Piceous black, shining, surface often with seneous 

 tinge, elytra often pale, legs pale rufous; surface sparsely clothed with greyish 

 pubescence. Thorax moderately, not densely punctured, hind angles divergent, 

 carinate, the carina diverging from the margin; flanks moderately densely 

 punctured in front, a large smooth space posteriorly. Elytra moderately deeply 

 striate, strise punctured, intervals convex and punctulate. The prosternal 

 mucro is horizontal, the mesosternum is however not prominent. Length 

 .36— .60 inch; 9— 15 mm. 



J/a^e.— Thorax very evidently longer than wide, sides feebly arcuate, disc 

 less convex and usually less punctured. Form generally more slender and 

 less convex. 



Female. — Thorax very little if any longer than wide, disc more convex and 

 punctured than in the male and with the sides more arcuate. General form 

 stouter and more convex. 



The above short description Sufiices to define this species as a 

 whole. The sexes vary in form and are parallel in their differences 

 with those of Corymbites cylindriformis. 



TRANS. AMER. ENT. SOC. VIII. (10) MAnCH, ISSO. 



