THE LONG-HORNED WOOD-BORING BEETLES. 



1021 



e. Scutellum acute, triangular; antennae very long, sulcate; thorax 

 with spine on each side. XII. Chion. 



ee. Scutellum rounded behind. 



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



XIII. Ebubia. 



//. Elytra without raised ivory-like spots. 



g. Femora not strongly clubbed; antennal joints and elytra 

 with spines. 



h. Larger species (19-28 mm.) ; side pieces of metathorax 



narrower behind. XIV. Romaleum. 



7/7/,. Smaller species (8-19 mm.) ; side pieces of metathorax 

 parallel. XV. Elaphidion. 



gg. Femora strongly clubbed ; elytra without spines at tip. 



i. Antennae bisulcate on outer side. XVI. Tylonotus. 

 ii. Antennae not sulcate nor hairy. 



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



XVII. Hetebachthes. 

 jj. Middle coxal cavities angulated ; length 13 mm. 



Zamodes. 



XL Dryobius Lee. 1850. (Gr., "oak + live.") 



Antennas 11-jointecl, ranch longer than body in male, and densely 

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

 with obtuse tubercles ; elytra subtruncate or broadly emarginate at 

 apex. One species occurs in the Mississippi Valley. 



1889 (6022). Deyobius sexfasciatus Say, Journ. Phil. Acad. Nat. Sci., III, 

 1824, 415 ; 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 ; antennae and legs red- 

 dish-brown. Thorax with sides a 

 rounded, surface coarsely and fts 

 sparsely punctured, with three 



smooth, blunt tubercles. Elytra with 

 the smooth black spaces finely and 

 sparsely 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 larvaa bore. One of the most hand- 

 some members of the family. The antennas of female are but little 

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



Achryson surinanuim Linn., reddish-brown, elytra with a lew 



Fig. 432. X H. (After Smith.) 



