THF. t'OMB-CIiAWEn BARK BEETLKS. 



128] 



Fig. uGS. X 7. (Original.) 



2:M1 (TC.IT). MYrisrcH'n.UiKN foviv\ta Lee, X. Sp. X. Anier. <'ol., I. LSCiC. 

 141). 

 Kloii.cate. subiivMl. I>nvk rerlilish-browu 

 to piroims. sliiuiiii: ; antenna' and le.t:s red- 

 dish-yellow; elytra \vith a small, pale reddish 

 spot on humeri ; piibesn'iue short, fine, sparse 

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

 ly four times their width. Thorax one-third 

 wider than long; sides stron.i^ly ronuded at 

 middle, thence couvergin;; to ajiex, hind an- 

 gles rectangular; disk distinctly sloping on 

 sides toward front anjjles. finel.v. 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- 

 \als each with a single row of very fine punc- 

 tures. Length .5-(i mm. iFiir. .liis.) 



Throughout the. State; frequent. April 25— July 24. (V'cur.5 

 especially beneath the bark of maple and walnut. 



2.'572 (Tin.sK Mycetochares tknuis Lee, New Sp. X'. Amer. t'ol.. I, 1800. 

 140. 

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

 antenna^ pale reddish-yellow ; elytra each «-ith a small reddish spot near 

 humerus; pubescence tine, shovl and incimspieuous. Eyes rather large, sep- 

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

 head, about one-tliird 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 imiuessinn each side near base. Elytra more than 

 half ;is wide again as thm-.ix ; surface with rows of feebly impressed, rather 

 tine imnctures; intervals each with an irre,L:nlar row of punctures almost 

 as large as those of stria'. Length .".."-li mm. 



ilarion, ]\[onroe and Posey counties; scarce. Islny 1-iIay 'M). 

 This sjieeies and fonala are often fotuid together beneath bark. 

 They run very rapidly when uneovered and attempt to bide in any 

 dust or other debris which is present. 



M. f/racili.'^ Lee. iilaek, shinino-, leiis black, length 5.5 mm,, is 

 known from ]\lichigan and Ohio; .V. rufiijcs Lee, dark piceous- 

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

 near Cincinnati. M. Dinrf/iiiatn Lee. color and size of tirarilix, was 

 (le.seribed from ^liebigan. 



SMr, (70124). Mycktochares mxotata Say. Long's Expwl.. II. ^s■2■i, l!,s.l ; 



ibid. I. ISO. 



Elongate-obliiiig. ii.-irallel, mnderately convex. I'iceous black, shining; 



two basal .ioints of antenna', tibia' and tarsi paler. lOlytra e.ach with a 



lar^'e, rounded. ]iale reddish spot. Thorax nearly twice as wide tis long. 



