TfiK siiii"-T[Mi!i;iJ i;i.:K'r[.Kft. 



81)5 



* of the I»;is;il joints dull yollow. Budy iHiiu-lui-cd. willi short h:iirs; thorax 

 with an iudCMitod iiiio; scnttl ghibrous and carinato in the middle; elytra 

 with slightly elevated lines. Length 10-12 mm. 



Tlie n1)ove is a in()(Iifi('ati(ni of Say's oi-io'inal doscription. He 

 took it from tlio. vicinity of New Plannony, wliero he "observed it 

 in considerable nniubers on tlie Ifith of April, fiyino- a})out a pros- 

 trate sugar maple nnd riinnino' briskly iipnn it. Tt is infested by 

 a species of ''GamasKs," (mite). A variety has the elytra dull 

 yellowish on the basal half. Not r<>pi'ese.nted in the collection at 

 hand. 



II. Lyimi-:xvlox Fab. 1(75. (Gr., ''destroyer 4 wood.") 



This genus is also represented in the eastern United States by 

 but one species. 

 1G99 (53Sr>). Lymexylox sericeum Harr.. Ins. Mass., 1838, 52. 



Elongate, slender, subcyliudrical. Pic- 

 eous brown, clothed with very fine, silky, 

 yellowish pubescence ; anteunse, under sur- 

 face, tibiae and tarsi, paler. Antennae short, 

 half the length of head and thorax ; third 

 joint longest. 5th to 10th bead-like. Thorax 

 twice as long as wide, broadly rounded in 

 front, hind angles rectangular; disk strougly 

 convex on basal half, surface densely and 

 rather coarsely punctured. Elytra with sides 

 nearly parallel, their surface finely, densely 

 and irregiilarly punctate. Length 11-13.5 mm. 

 (Fig. 352.) 



Lake and Crawford counties; rare. 

 June 20-July 21. Taken from beneath 

 loose bark of oak logs. 



MicrouiaJIJius dehilis Lee., elongate, 

 piceous, slnnino, antennae and legs yellow, length 2.2 mm., was 

 described from Detroit, Michigan, where it occurred in August in 

 decaying wood. 



Family NLVII. CIOID-^. 

 The Mintte Tree-fitngi^s Beetles. 



Very siiuijl, subcyliiulrical lilack or lirownish beetles, rarely ex- 

 ceeding 3 n)m. in length, and having the head retracted, but not en- 

 tirely concealed by the pi'ohmged thoi'ax. In the nuiles of some 

 species the head and IVont margin of thorax ar(^ ornamented with 

 small, horn-like i)rocesses. The family name comes from that of the 



[57—23402] 



Fig. 352. (Original.) 



