THE LONG-HORNED WOOD-BORING BEETLES. 



1021 



c. Scutellum acute, triangular; antenna} very long, sulcate; thorax 

 with spine on each side. XII. CHION. 



<<-. Scutellum rounded behind. 



f. Elytra with elliptical, elevated ivory-like spots in pairs. 



XIII. EBUBIA. 

 //. Elytra without raised ivory-like spots. 



{/. Femora not strongly clubbed; antennal joints and elytra 



with spines. 



/(. Larger species (39-28 mm.) ; side pieces of meta thorax 



narrower behind. XIV. ROMALEUM. 



Jih. Smaller species (8-19 mm.) ; side pieces of metathorax 



parallel. XV. ELAPHIDION. 



U if. Femora strongly clubbed; elytra without spines at tip. 



i. Antenna? bisulcate on outer side. XVI. TYLONOTUS. 



ii. Antenna? not sulcate nor hairy. 



./. Middle coxal cavities rounded; length 7.5-11 mm. 



XVII. HKTI;I;A< HTHES. 

 jj. Middle coxal cavities angulated ; length 13 mm. 



ZA MODES. 



XI. DKYOBIITS Lee. 1850. (Gr., "oak + live.") 



Antenna' 11 -jointed, nnich longer than body in male, and densely 

 pubescent on under side with long brownish hair; thorax depressed, 

 with obtuse tubercles; elytra- snbtruncate or broadly emarginate at 

 apex. One species occurs in the Mississippi Valley. 



1S89 (6022). DBYOBIUS SEXFASCIATUS Say, Journ. Phil. Acad. Nat. Sci., Ill, 



1824, 4ir,: ibid. II. 195. 

 Elongate, subdepressed. Black, 

 shining; thorax with two and ely- 

 tra with four conspicuous cross- 

 bands of bright yellow pubescence ; 

 top of head, clypeus and scutellum 

 also yellow; antenna? and legs red- 

 dish-brown. Thorax with sides 

 rounded, surface coarsely and 

 sparsely punctured, with three 

 smooth, blunt tubercles. Elytra with 

 the smooth black spaces finely and 

 spa rsely punctured. Length 19- 

 27 mm. (Fig. 432.) 



Putnam, Posey and Craw- 

 ford counties ; scarce. June 13- 

 July 4. Occurs beneath the 

 loose bark of dead beech and 



maple, in the wood of which the larva? bore. One of the most hand- 

 some members of the family. The antenna? of female are but little 

 longer than the body; those of male nearly twice as long. 



AcJiryson surinamum Linn., reddish-brown, elytra with a few 



Fig. 432. 



(After Smith.) 



