856 FAMILY XIJI. CLERID^. 



/. 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. 

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



(except in tricondylce) . 



g. Elytra at base narrower than at apical third. TRICONDYL.E. 



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

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



*. Flanks of elytra parallel, only slightly abbreviated. SCHUSTERI. 

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

 half the length of abdomen. 1639. LONGICOU.IS. 

 ///(. Thorax very nearly twice as long as wide. 1640. TAHIHA. 



1635 (5189). HYDNOCERA VNIFASCIATA 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 ; antenna? and tarsi dull 

 yellow. 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 3.5-4.5 mm. 

 (Fig. 337.) 



x5j. ' Orange and Crawford counties: rare. May ''.O- 



June 2. Beaten from foliage of oak and hickory. 



1636 (5193). HYDNOCERA HUMERALIS Say, Journ. Phil. Acad. Nat. Sci.. III. 



1823, 192; ibid. II. 122. 



Elongate, less strongly convex. Violaceous or bluish-black: elytra dark 

 blue, humeri usually red; antenna? 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 OraAvford counties; scarce. June 1- 

 June 24. The tips of elytra are sometimes dull yellow. In var. 

 difficilis Lee. the elytra are unicolorous. 



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

 low, length 3.5-4.5 mm., and H. pcdftlix Lee., black, with a bluish 

 tinge, elytra only slightly shorter than abdomen, 4.5 mm. in length, 

 are both known from Illinois. The latter has also been taken in 

 Ohio. 



ir,:;7 (~>\W>. HVDNOCEEA PALUTK.NMS Say, Journ. Phil. Acad. Nat. Sci., V, 



1825, 176 ; ibid. II, 283. 



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

 legs pale; elytra dull yellowish, the side margins, apex, suture and a me- 

 dian crossbar brownish or black, the markings often reduced in extent. 



