202 J. L. LECONTE, M. D. 



11. — Prosternum flat or slightly convex at the middle 12. 



Prosternum earinate for its whole length ; form eyliudrical-oval, prothorM.K 

 ferruginous, nearly smooth, sides and two basal spots yellow; elytra wilh 

 two broad oblique black stri])es, strifE fine not impressed; %: 5.5 mm.; 



Ks.; one specimen* 24. caritiatus n. sj). 



12. — Prosternum entirely flat lo. 



Prosternum feebly convex along the middle 14. 



13. — Prothorax smooth, ferruginous, sides yellow, elytra with confluent stripe.^;, 

 and coarser somewhat impressed striae ; %; 4.2 mm.; Ga. ; one specimen. 

 Probably only an extreme variation of the next, in which case this name 



has precedence 25. insertu*^ Hald. 



Prothorax feebly punctulate, ferruginous, sides and two basal spots yel- 

 low; elytra with fine not impressed strise, and two broad oblique black 

 stripes sometimes confluent, sometimes interrupted, sometimes wanting : 

 % subcylindrieal; 9 usually a little more oval; ornatusX Say, venustus J 

 Hald.; ? bispinus Suff'r. ; 4 — 6 mm.; Atlantic region. ..26. calidus Suff'r. 

 a. — Outer elytral stripe interrupted ; 'J, 9 . 



/?. — Outer stripe interrupted, inner ones confluent along the suture; % . 

 14. — Prothorax smooth, pale yellow, sometimes with three faint clouds; elytra 

 ■with stronger, somewhat impressed striae; stripes distinct or obliterated ; 



^ 9; Ga.; Tex 27. albicans Hald. 



Prothorax obsoletely punctulate, very convex and declivous in front; 

 elytra with fine strise, the outer ones somewhat impressed, and two 

 broad oblique black stripes, epipleurse black; form robust; 'J, 9; 5^ 



7 mm.; Mass.; N. Y 28. gibbicollis Hald. 



a. — Elytral stripes wanting, only a short humeral stripe and ejjij^leurse 

 remaining black; 9; Ga. 

 Prothorax finely but obviously punctured, very convex and declivous in 

 front, ferruginous with sides and indistinct spots yellow, or yellow with a 

 transverse ferruginous cloud; elytra with strise of coarse punctures, outer 

 ones scarcely impressed, stripes rej)resented by small spots; form robust; 



% 9: 5.4— 7.5 mm.; Ga.; Fla 29. ataaacus Hald. 



15. — Smaller, red-brown, above brownish yellow, jirothorax densely punctured. 

 with three brown stripes or spots ; elytra deeply striate, with three oblique 

 brown stripes;f ])rosternum quite flat, strongly margined at the sides, 

 acutely bilobed behind; % ^ ; vitatus H&ld. ; '! lixus'Newm. ; 3.5 — 4.3mm.; 



Middle States 30. trivittatus Oliv. 



Still smaller, more cylindrical, red-brown; prothorax sparsely punctu- 

 late, scarcely sjiotted ; elytra with eight deep discoidal strise, and three 

 indistinct more or less confluent stripes; prosternum slightly convex 

 along the middle, truncate in front, obtusely bilobed behind ; 'J, 9 i lineo- 



latus Hald.; 3 — 3.5 mm.; Mid. and West. States J 31. incerliis Oliv. 



Very small, dirty yellow, prothorax sparsely punctured, sometimes with 

 brown marks; elytra with deep regular punctured strise, (seventh very 

 short), and traces of three narrow brown stripes; prosternum flat, trun- 

 cate in front, very little emarginate behind; 'J, 9j 1-8 — 2.2 mm.; Ga. ; 

 Fla 32. puinilus. 



* Additional specimens are required to establish the validity of this species. 

 I The inner one is wanting in all my specimens, or feebly indicated. 

 J This species reverts towards IS. defectus. 



