LeConte.] TOMICINI. 359 



B. Body elongate, cylindrical; declivity of elytra oblique, frequently re- 

 tuse or excavated; funicle of antennae with five distinct joints; tibise rounded 

 at tip, and finely serrate, except in the species under 6. 



Declivity of elytra flattened ; tibiae finely serrate.. 2. 



" " deeply impressed along the su- 

 ture, tibise more coarsely serrate, not rounded 

 at tip 6. 



2. Declivity with a few prominent tubercles 3. 



" with rows of small granules 6. 



3. Prothorax deeply impressed in front 4. 



" not impressed; declivity with two acute 

 tubercles each side, and some smaller marginal 

 ones 4. celsus. 



4. Declivity with one large, acute tubercle 5. fuscatus. 



" with a few prominent acute tubercles. ... 6. biogrraphus. 

 " " but two very small granules 7. retusicollis. 



5. Declivity of elytra with four or five granules on 



the first, third and fifth interspaces 8. xylographus. 



Declivity of elytra with two or three granules on 



the first, third and fifth interspaces 9. pubescens. 



6. Declivity of elytra oblique, not sharply margined. . 7. 



" " nearly perpendicular 8. 



" " with acute edge 9. 



7. " " " two prominent tubercles, 

 and some smaller marginal ones ; elytra strongly 

 punctured in rows, interspaces with rows of 



distant punctures lO. caelatus. 



Declivity with two prominent tubercles, and some 

 very indistinct marginal ones, elytra with rows 

 of rather distant punctures '. 11. impressus. 



Declivity with some marginal tubercles, and two 

 discoidal ones, with a third subsutural one, at 

 the anterior part of the declivity, punctures dis- 

 tant, not arranged in rows 12. spareus. 



8. Declivity nearly perpendicular, without discoidal 



tubercles, sharply margined, and armed with 

 teeth in 9 > of which the upper one is hooked; 

 obtuse and feebly toothed in jf ; elytra with 

 distant punctures not arranged in rows 13. plagiatus. 



9. Declivity nearly perpendicular, acutely margined, 



armed with a small tooth near the apex, and a 

 long hooked process near the anterior end. 

 Elytra with rows of feebly impressed small 

 punctures 14. hamatus. 



C. Prothorax densely punctured, not roughened in front, but broadly 

 flattened, disc feebly and broadly sulcate; tibise finely serrate below, coarsely 



