890 FAMILY XLIV. BOSTRIOHID.K 



Casey mentions Indiana as one of the localities from which his 

 specimens came. Horn states that it occurs "everywhere east of 

 the Rocky Mountains." I have not seen it from the State. The 

 mature beetle is said to bore for feeding purposes in living twigs 

 of fruit trees and grape vines, never, however, ovipositing in such 

 twigs, but living as larva? in the dead and dry wood of forest trees. 



V. DINODERUS Steph. 1830. (Gr., "huge + neck.") 



Species of cylindrical form having the tarsi short, the four basal 

 joints each about the same length and together nearly equal to the 

 fifth. The declivity of the elytra is normally convex, though some- 

 times flattened. Four of the eight known species may occur in In- 

 diana, though but two of them have been taken. 



KEY TO INDIANA SPECIES OF DINODEKUS. 



a. Declivity of elytra convex, not acutely margined. 

 Z>. Margin of thorax coarsely serrate. 



c. Head shining, smooth, granules small, flat ; elytra polished or 

 strongly shining. SUBSTRIATUS. 



cc. Head opaque, rather roughly granulate ; elytra opaque. 



1691. POBCATUS. 



lib. Margin of thorax feebly serrate; elytral punctures in regular rows; 



color pale reddish- or chestnut-brown. PUSILLTJS. 



aa. Declivity of elytra more or less flattened and acutely margined, the 



marginal ridges short; second joint of antennae as slender as the 



third. 1692. PUNCTATUS. 



1691 (5358). DINODERUS PORCATUS Lee., New Spec. N. Amer. Col., 1866, 101. 

 Elongate, cylindrical. Brownish, opaque, sparsely clothed with short 



erect hair. Front opaque, roughly granulate. Thorax as long as wide, 

 slightly narrowed in front, margin conspicuously serrate; disk in front with 

 spiuiform tubercles; its basal half rather densely tuberculate and with a 

 fine, smooth median line. Elytra with tubercles in rows. Length 3.5 mm. 



Lawrence County; rare. May 23. Probably throughout the 

 State. 



1692 (5363). DINODERUS PUNCTATUS Say, Journ. Phil. Acad. Nat. Sci., V, 



1826, 258 ; ibid. II. 320. 



Elongate, cylindrical. Piceous or blackish-brown, sparsely pubescent. 

 Thorax a little longer than wide, narrowed in front, margin very feebly ser- 

 rate, tuberculate as in porcatus. Elytra densely and irregularly coarsely 

 punctate; intervals not elevated; declivity feebly convex, acutely margined 

 at sides of apex. Length 4.5 mm. 



Taken by Dury at Cincinnati. Casey's specimens were in part 

 from Indiana. Not represented in the collection at hand. 



