THE COMB-CLAWED BARK BEETLES. 



1281 



2371 (7017). MYCETOCHABES FOVEATA Lee., X. Sp. X. Amer. Col., I, isc.i;. 



140. 



Elongate, suboval. Dark reddish -brown 

 to piceous, shining; antenn;e and legs red- 

 dish-yellow; elytra with a small, pale reddish 

 spot on lunneri ; pubescence short, tine, sparse 

 and semi-erect. Eyes small, separated by near- 

 ly four times their width. Thorax one-third 

 wider than long; sides strongly rounded at 

 middle, thence converging to apex, hind an- 

 gles rectangular; disk distinctly sloping on 

 sides toward front angles, finely, deeply and 

 sparsely punctate; basal impressions on sides 

 deep, rounded, the one at middle linear, more 

 shallow. Elytra with feebly impressed rows 

 of rather coarse, close-set punctures ; inter- 

 vals each with a single row of very fine punc- 

 tures. Length 5-6 mm. (Fig. 568.) 



Throughout the State; frequent. April 25-July 24. 

 especially beneath the bark of maple and walnut. 



Fig 568. ' 7. (Original ) 



Occurs 



2372 (7G1S). MYCETOCHARES TENUIS Lee., New Sp. N. Amer. Col., I, 1866, 



140. 



Elongate, slender, parallel. 1'iceous-black, shining; legs and base of 

 antenna? pale reddish-yellow; elytra each with a small reddish spot near 

 humerus ; pubescence fine, short and inconspicuous. Eyes rather large, sep- 

 arated by two-thirds more than their width. Thorax one-fourth wider than 

 head, about one-third wider than long, sides parallel and straight on basal 

 two-thirds, thence rounded to apex; disk rather coarsely but sparsely punc- 

 tate and with a deep impression each side near base. Elytra more than 

 half as wide again as thorax; surface with rows of feebly impressed, rather 

 fine punctures; intervals each with an irregular row of punctures almost 

 as large as those of stria 1 . Length 5.5-6 mm. 



Marion, Monroe and Posey counties; scarce. May 1-May 30. 

 This species and forcata are often found together beneath bark. 

 They run very rapidly when uncovered and attempt to hide in any 

 dust or other debris which is present. 



M. (jracilis Lee., black, shining, legs black, length 5.5 mm., is 

 known from Michigan and Ohio ; M. rufipes Lee., dark piceous- 

 brown, legs yellow, length 4.5 mm., is recorded from New York and 

 near Cincinnati. M. marginata Lee., color and size of gracilis, was 

 described from Michigan. 



2373 (7624).. MYCETOCHARES BINOTATA Say, Long's Exped., II, 1824, 285; 



ibid. I, 189. 



Elongate-oblong, parallel, moderately convex. Piceous black, shining; 

 two basal joints of antenna 1 , tibia 1 and tarsi paler. Elytra each with a 

 large, rounded, pale reddish spot. Thorax nearly twice as wide as long. 



