856 FAiMILV XLU. CbERJD.K. 



/. Head black, feebly shining, finely rugose ; elytra coarsely, dense- 

 ly, somewhat confluently punctate. 1637. pallipennis. 

 ff. Head in part pale, very shining, nearly smooth, not rugose ; ely- 

 tra coarsely, less densely, not confluently punctate. 



1638. VERTICALIS. 



au. Thorax conspicuously longer than broad ; elytra shorter than abdomen 

 (except in tricondi/Uc). 

 g. Elytra at base narrower than at apical third. teicondyl.e. 



gg. Elytra at base as wide or wider than at apical third. 

 /(. Thorax fully one-half longer than broad. 



i. Flanks of elytra parallel, only slightly abbreviated. scHUSTERr. 

 //. Flanks of elytra convergent behind, but slightly more than one- 

 half the length of abdomen. 1639. longicoli.is. 

 Thorax -very nearly tTsice as long as wide. 1640. tabida. 



1G.^^1 (5189). Hydnoceea unifasciata Say, Journ. Phil. 

 Acad. Nat. Sci., V, 1825, 176 ; ibid. II, 284. 

 Elongate, rather strongly convex. Bluish-black ; sparse- 

 ly clothed with erect yellowish hairs ; antennre and tarsi dull 

 >ellow. Thorax one-fourth wider than long, sides tubercu- 

 late. Elytra coarsely, deeply, closely punctate, the narrow 

 post-median crossbar interrupted at suture and densely 

 clothed with prostrate whitish hairs. Length 3.5^.5 mm. 

 (Fig. 337.) 



'x5}. ■ Orange and Crawford counties; rare, ^[ay 30- 



June 2. Beaten .from foliage of oak and liiekory. 



1636 (5193). Hydnoceka hxjmeralis Say, Journ. Phil. Acad. Xal. Sci., III. 

 1823. 192 ; ibid. IT, 122. 



Elongate, less strongly convex. A^iolaceous or bluish-black ; elytra dark 

 blue, humeri usually red ; antennse and legs, especially the front pair, usual- 

 ly in great part reddish. Thorax one-third wider than long, constricted 

 near base and apex, the sides moderately tuberculate. Elytra parallel, 

 more finely and densely punctate than in unifasciata. Length 3.5-5.5 mm! 



Lake, Starke, Elkhart and Crawford eounlii-s; scarce. Jnne 1- 

 June 24. The tips oE elytra arc sometimes dull yellow. In var. 

 (lifpciUs Lee. the elytra are unicolorous. 



H. pulesccns Lee, dark blue, antenna and front legs dull yel- 

 low, length 3.5-4.,^, mm., and H. pcdalis Lee, black. wi"h a bluish 

 tmge, elytra only slightly shorter than abdomen, 4.5 nun in length 

 are both known from Illinois. The latt.M^ has also been taken in 

 Ohio. 



Ki.ST (5199). HvDNOcEitA 1...U.L1VE.N- IMS Say, Journ. PhiL Acad Nat Sci V 

 1825, 176 ; ibid. II, 283. ' " ' 



Elongate, subdepressed. Black, with a tinge of bronze; antennre and 

 legs pale; elytra dul, ,^•e,lowish, the side u.argins, apex, suture and a me- 

 dian crossbar br..w,Ms„ or black, the n>arkings often reduced in extent 



