TKIP.IC viii. Tvrimxi. 241 



<tti. Elytral intervals distinctly alternating in width; elytra uniform pale 

 brownish-yellow. 352. HELVOLA. 



348 (8689). THYSANOCNEMIS FKAXINI Lee., 1876, 214. 



Elongate-oblong. Reddish-brown, rather thickly clothed with long, 

 very coarse reddish-yellow hair-like scales; elytra with a broad postmedian 

 transverse band, narrowed at the suture, less densely pubescent and of a 

 darker color. Antennae inserted at apical fourth of beak, male, at middle, 

 female. Thorax one-third wider than long, sides feebly curved, disc narrow- 

 ed and slightly constricted in front, finely and densely punctured. Elytra 

 oblong, at base nearly one-half wider than thorax, sides parallel and nearly 

 straight to apical third, striae with large, close-set punctures; intervals 

 slightly convex, nearly smooth; front tibiae of male shorter, broader, 

 sinuate and densely fringed with long hairs on the innner side. Fifth ven- 

 tral broadly and feebly impressed. Length 3.2 3.7 mm. 



Lake, Marion and Posey counties, Ind., scarce; April 21 

 June 8. Ithaca and West Point, N. Y., June X. Kanges from 







New England and Canada to Illinois, south to the District of 

 Columbia. Occurs on ash (Fra.i-lnns) in the seeds of which it 

 breeds. Bred from hazel-nuts at Wooster, Ohio, in June. (Ditri/.) 

 The dark cross-bar of elytra is often very faint. Casey (1802, 

 42l>) redescribed this species under the name lutrridiihi, giving 

 the locality as Southern California. Later (1010, 128) he 

 corrected the locality but not the name. A comparison of 

 Indiana specimens with LeConte's type shows them to agree in 

 every particular. It is the only one of the five species at hand 

 having the front tibi;e of male densely fringed, and LeConte was 

 mistaken in making that a leading generic instead of a specific 

 character. 



349 ( ). THYSAXOCXEMIS BISCHOFFI sp. nov. 



Elongate-oval. Dark reddish-brown to piceous, rather thinly clothed 

 with short clay-yellow and fuscous scales, the latter forming four indistinct 

 stripes on thorax and a broad, irregular V-shaped crossbar on elytra, 

 the angle of the V crossing the suture at or just behind the middle; this 

 dark bar often bordered behind near apical third with a narrow angulate 

 cross-bar of pale scales; antennae and legs pale brownish-yellow; scutellum 

 grayish-white. Beak of female very slender, as long as head and thorax, 

 antennae inserted at middle; of male somewhat stouter, one-fifth shorter, 

 antennae inserted at apical third. Thorax two-thirds wider than long, 

 sides strongly rounded, suddenly narrowed and constricted near apex, 

 disc finely and densely punctate Elytra shorter and broader than in 

 fraxini; stria? with fine, close-set punctures; intervals flat, finely granu- 

 late, each with a row of large, suberect whitish scales. Third and fourth 

 ventrals distinctly longer than in fraxini, each very little shorter than the 

 second. Fifth ventral not impressed. Length 3.2 4 mm. (W. 8. B. ) 



Marion County, Ind., June 22. Bowmanville, 111,; August 1.1 

 Sept. 4. IJloomsburg, X. J. ; Leng collection. Commonly con- 



