200 J. L. LECONTE, M. D. 



Smaller and more slender, humeral spot oblong, a little wider behind, 

 sometimes much reduced, hardly attaining the base; apical spot as 



usual; 'J, 9j 2.5 — 3 ram.; Atlantic region 10. qiiadruplex I^ewm. 



(I. — Humeral sjjot much larger, reaching to the middle of the sides of the 

 elytra; % 9> guadrigutiulus Suf^r.; Ks. ; 111. 

 4. — Elvtra variously spotted; strise usually represented by rows of very large 



distant punctures 5. 



Elytra with regular impressed rows of punctures; yellow each with three 



oblique narrow black lines, sometimes obsolete 7. 



Elytra with regular rows of punctures; yellow each with two broad black 

 or brown stripes, sometimes confluent, sometimes wanting; (prosternum 



nearly truncate behind, apical lobe acute in 9 ) 8. 



Elytra with regular punctured striae; prosternum broadly lobed in front, 

 bispinose concave and deeply emarginate behind; black, cylindrical, 

 prothorax shining red; 'J, spines of hind angles of prosternum per- 

 jieudicular; 9 spines horizontal ; 3.7 — 4.7 mm.; Gala.; Or. 



11. sanguiuicollis Suffr. 

 a. — Entirely black; % 9j nigerj-imus Crotch. 



5. — Prothorax yellow, with four black or brown stripes 6. 



Ferruginous; elytra black with rounded pale yellow spots arranged 2, 2, 2, 1, 



the last being apical; strise not impressed, composed of moderately large 



punctures, the two next to the outer one much dislocated ; prosternum 



deeply emarginate behind, lobed in front, lobe longer in 'J, than 9j 



% 9; lautus'Se-wm.; 4 — 5.5mm.; Atlantic region. ..12. giitt.illatai»$ Oliv. 



a. — Inner spot of second band nearly obsolete; (this variety resembles 



C. badius Sufifr., but is readily distinguished by the anterior lobe of 



the prosternum) ; 9 . 



Prothorax brown with side margin and two basal spots yellow; elytra 



yellow, with very large distant black punctures, and spots arranged 



4, 3, 2, in three transverse bands ; 'J, ; 5 mm. ; Tex., (Ulke). 



13. cribripennis n. sp. 



fl. Elytra yellow with black spots arranged 3,2,2; sixth and seventh striiE 



not conspicuously dislocated; % <^ ; 4.S — 5.3 mm.; Ga.; Tex. 



14. bivitis Newm. 

 Elvtra yellow with brown spots confluent into three transverse bands, the 

 front one of which rarely attains the margin; sixth to eighth strife con- 

 spicuously dislocated; % 9; ^—^ mm.; Pa.; Ga.; Ks.; N. Mex. 



15. leiieomelas Suffr. 



a. — Brown bands confluent so as to leave only wedge-shaped yellow spots 



near the margin ; %; vitticoUis JjCc. 



Elytra yellow with large brown spots confluent longitudinally on the disc, 



and two jjosterior spots near the margin; yellow lines of prothorax 



narrow, the two middle ones interrupted; sixth and seventh strise not 



dislocated; S 9 5 ^ mm.; Gala 16. castaucus n. sp. 



7. — Prothorax yellow with four ferruginous stripes; elytra with regular deep 

 strise, seventh interrupted, eighth short, oblique; each elytron with three 

 narrow oblique dark stripes; % prosternum with a cusp near the front 

 margin, hind margin slightly emarginate; 3.2 mm.; Wyoming, one 



specimen 17. amatus Ha Id. 



a. — Dark stripes of prothorax and elytra wider, confluent. 



