TRIBE IV. MICRACINI. 649 



Westville, N. J., Feb. ."), in oak twigs. (Wenzel.) Described 

 from Detroit, Mich. Common in New Jersey in small oak twigs, 

 winter and spring. Occurs also in New York and District of 

 Columbia, boring in old twigs. (Ulke.) 



1048 (9139). MICRACIS ASPKUULUS Lee., 1878, 626. 



Slender, cylindrical. Black, entirely opaque, thorax sprinkled witn 

 small yellowish, scale-like hairs, antennae and legs ferruginous. Club of 

 antenna? with broadly curved suture; scape of male fringed with very 

 long hair. Eyes very narrowly separated beneath; head not concave, 

 scarcely punctured. Thorax more strongly asperate in front than in 

 opacicollis, scarcely punctured behind. Elytral intervals with rows of 

 very short stout bristles. Length 1.7 mm. 



Described from Detroit, Michigan, in dead oak twigs; also 

 recorded from New York, Pennsylvania and Virginia. Doubtfully 

 distinct from opocicoUis. 



II. THYSANOES LeConte, 187G. (Gr., "fringed.") 



Small, slender, cylindrical species having the thorax sparsely 

 asperate in front; elytra! intervals provided with rows of pale 

 bristles, the declivity simply convex ; front tilme of the same 

 parallel form and as wide at base as at tip, as in Micracis, not 

 serrate on outer edge ; scape of antennne fringed as there but the 

 joints of fuuicle widely separated, becoming rapidly wider and 

 fringed with long hair;* club elliptical, compressed, rather shin- 

 ing, sparsely hairy and without sutures on its inner face. The 

 species live in twigs of hickory, oak, etc. 



1049 (9143). THYSANOES FIMBRICORNIS Lee., 1876, 370. 



Slender, cylindrical. Yellowish-brown; head of male shining, flat- 

 tened, with a small fovea on vertex; antennae as described above. Thorax 

 longer than wide, sparsely asperate in front and slightly hairy, then not 

 densely punctured for a short distance, nearly smooth behind middle, and 

 at sides. Elytra with rows of small punctures; those of intervals smaller 

 and more distant, supporting short, clavate, pale bristles in regular rows; 

 declivity convex, not at all impressed or retuse, sutural line very slight. 

 First and second ventral segments each as long as others united, third, 

 fourth and fifth short, equal; last dorsal slightly visible from beneath. 

 Front tibia? broad from base, sides parallel, outer edge acute, not serrate. 

 Length 1.8 mm. 



Westville and Chews Landing, New Jersey; June 9 June 16; 

 on hickory twigs and just leaving the wood. (Wenzel.) April 

 and May. (Packard.} Described from Lancaster County, Pa.; 

 known also from District of Columbia. Food plant, hickory. 



"Compare the antenna? of Loganius ficits, which have similar characters. 



