226 J. L. LECONTE, M. D, 



2. — Protliorax without hind angles 3. 



Prothorax with hind angles obtuse, distinct except in sp. 24,27 4. 



3.— Prothorax and elytra very finely and densely punctnlate. 



21. i)unctati»«$«iiniis, n. sp. 



Prothorax sparsely, elytra strongly punctured 22. latieollis, n. sp. 



4. — Sides of prothorax rounded 5. 



Sides of prothorax subangulated, slightly sinuate; color entirely black, 



finely punctured 23. longipciinis. 



5. — Elytra uniform in color, brown, blackish or testaceous; inentum frequently 



impressed 6. 



Elytra yellow and black, men turn quite tiat 9. 



Testaceous yellow, head and tip of abdomen dark. ..35. pliytosiiliis, n. sp. 



6. — Flanks of prothorax distinctly concave 7. 



Flanks of prothorax aearly flat; elytra yellow, finely punctured ; prothorax 



finely granulate, obsoletely punctured 24. lutcipeuiiis, n. sp. 



Flanks of prothorax flat in front, slightly concave about the middle; 

 blackish-brown or brown, head and prothorax darker; the latter dis- 

 tinctly punctured, finely granulated, hind angles distinct, subrect- 



angular 25. sinuatus, n. sp. 



7. — Prothorax very densely granulated, opake S. 



Prothorax less densely granulated, subopake, hind angles distinct. 



26. auuiilaris. 

 8. — Hind angles of prothorax indistinct, rounded; elytra chestnut, strongly 



punctured 27. couf UisiUS, n. sp. 



Hind angles of prothorax very obtuse, but distinct; elytra yellow-brown, 



densely punctured 28. rulicornis. 



9. — Epi pleurae dark 10. 



Epipleurse yellow 11. 



10.— Elytra diagonally divided in color 2y. divi»«U$$. 



Elytra with base and wide sutural stripe black 30. pleuralis, n. sp. 



Elytra more finely punctured, diagonally divided in color. 



31. diagoualis. 

 11. — Elytra more strongly punctured, yellow, base and suture black. 



32. tau, n. sp. 

 Elytra more finely punctured, sides and apical quadrate spot yellow. 



S3. ornatiiSv 



Elytra more strongly punctured, suture fuscous 34. suttiralis. 



12, — Rufous, head, and sometimes the abdomen darker. ..3ti. cugiiatiis, n. sp. 

 Piceous, antennsB, legs and elytra yellow-testaceous, suture dusky. 



37. eniargiuatiis. 

 21. B. puiiotatissimus, n. sp. — Black, finely pubescent, antennae fus- 

 cous base ferruginous; legs ferruginous. Head oj)ake, front broad flat, antennal 

 ridges nearly obsolete. Prothorax wider than long, much rounded on the sides, 

 hind angles rounded into the base, disc subopake, finely and very densely 

 punctulate, dorsal line obsolete. Elytra less opake, finely and very densely 

 punctulate. Dorsal segments shining, feebly punctulate; ventrals similarly 

 punctulate. Mandibles with the apical part long and slender. Side margin of 

 prothorax acute, flanks concave along the margin, episterna narrow, parallel ; 

 coxal fissures long, (open?). Length 3 ram; .11 inch. 



One specimen, Southern Caiiforuia, collected by Mr. Hardy, and 

 given me by Dr. David Sharp. Another specimen precisely similar 



