THE COMB-CLAWED BARK BEETLES. 



1281 



Mg. t) 



(Original ) 



2372 (7618) 



2371 (7617). Mycetochares foveata Lee, N. Sp. N. Amer. Col., I, 1866, 

 140. 



Elongate, suboval. Dark reddish-brown 

 to piceous, shining; antennae and legs red- 

 dish-yellow ; elytra with a small, pale reddish 

 spot on humeri; pubescence short, fine, 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. Occurs 

 especially beneath the bark of maple and walnut. 



Mycetochares tenuis Lee, New Sp. N. Amer. Col., I, 1866, 



140. a . „ 



Elongate slender, parallel. Piceous-black, shining; legs and base of 

 anient —yellow ; elytra each with a 

 humerus ; pubescence fine, short and inconspicuous. 



arated by two-thirds more than their width. Thorax ^^V^^ 

 head, about one-third wider than long, sides parallel and ^ ^ ^ 

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

 tate and with a deep impression each side near base ^tomorejhan 

 half as wide again as thorax; surface with rows of feebly ^ ™ther 



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

 as large as those of striae. Length 5.5-6 mm. 



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

 This species and foveata are often found together beneath bark. 

 They run very rapidly when uncovered and attempt to hide m am 

 dust or other debris which is present. 



M gracilis Lee, black, shining, legs black, length 5.5 mm., is 

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

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

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

 described from Michigan. 



Mycetochares binotata Say, Long's Exped., II, 1824, 2S5 ; 

 ibid. I, 189. 



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

 two" oints of antenna, tibi. and tarsi ^^^^J 

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



2373 (7624) 



