768 FAMILY XXXVII. - ELATER1D/E. 



than fourth. Thorax rounded, subquadrate, strongly convex, sides rounded ; 

 disk sparsely and finely punctate; hind angles short, acute, divergent, strong- 

 ly carinate. Elytra parallel, male, or slightly dilated behind the middle, 

 female ; stria? deeply impressed without punctures ; intervals convex, sparse- 

 ly and very finely puuctulate. Length 9.5-10.5 rnrn. 



Vigo County; rare. September 29-December 12. Hibernates 

 beneath logs on sanely hillsides. Occurs on foliage of Virginia 

 creeper, Parthenocissus quinquefolia Michx. 



1404 (44GO). COBYMBITES SULCICOLLIS Say, Ann. Lye. Nat. Hist., I, 1825, 



256; ibid. I, 391; II, 002. 



Elongate, rather slender. Uniform chestnut-brown, shining, not pubes- 

 cent. Third joint of antenna: 1 twice as long as second, nearly one-third 

 shorter and slightly narrower than fourth. Thorax one-third longer than 

 wide, widest at the front angles, slightly convex ; disk finely and rather 

 densely punctate, with an entire and deeply impressed median line ; hind 

 angles acute, slightly divergent, distinctly carinate. Elytra with sides par- 

 allel to apical third, thence rounded to apex, striae punctured; intervals sub- 

 convex, finely and densely piinctulate. Length 14-16 mm. 



Whitley, Marion and Lawrence counties; frequent. March 14- 

 August 7. On the earlier date a half dozen or more were taken 

 from beneath the loose bark of an ash snag, so that the species prob- 

 ably hibernates as imago. 



1465 (4479). CORYMBITES HAMATUS Say, Trans. Amer. Phil. Soc., VI, 



170; ibid. II, 605. 



Oblong, robust, dilated at middle. Head, thorax and under parts dark 

 reddish-brown to piceons ; thorax densely clothed with yellow hair; elytra 

 dull yellow, with a brownish stripe on outer side from tip to near middle. 

 where it curves inward and backward. Second and third joints of antenna? 

 small, subequal. together scarcely as long as fourth. Thorax convex, scarcely 

 longer than wide, sides broadly rounded ; disk finely and densely punctured. 

 with a faintly impressed median line on basal half, hind angles feebly di- 

 vergent, distinctly carinate. Elytral stria? deeply impressed with rather 

 coarse punctures ; intervals subconvex, densely puuctulate. Length 9.5- 

 11 mm. 



Posey County; rare. June 1. Taken by Dury near Cincinnati 

 from foliage of honey locust. 



C. spl oidcns Zieg., hind angl< s of thorax and epipleura reddish, 

 length 10-13 mm., has been recorded from New England, Pennsyl- 

 vania a.nd Ohio. 



XLT. OXYGONI-S Lee. 1S<M. (Gr.. "sharp : angle.") 



Differs from ('aritnibilcx only in having the tarsal daws armed 

 with a broad tooth near the base. Of the two species known, one oc- 

 curs. in Indiana. 



