242 SUBFAMILY X. CURCULIONINJE. 



fused in collections with fraxini but very distinct by characters 

 given in key and by the much broader thorax and longer third 

 and fourth ventrals. Named in honor of Edward A. Bischoff, of 

 Newark, N. ,L, who has taken this and many other interesting 

 species in New Jersey and at other points near New York City. 



350 ( ) THYSANOCNEMIS BALAJX T INOIDES Scha?ff., 1908, 217. 



Elongate-oval. Pale brownish-yellow throughout, above very thickly 

 clothed with lanceolate, yellow, hair-like scales, each interval with a row 

 of wider ones. Beak of female very slender, polished and almost impunc- 

 tate; of male one-third shorter, slightly stouter, finely and sparsely punc- 

 tate. Antenna? inserted at basal two-fifths, female, just in front of 

 middle, male, first joint of funicle very slender, as long as the next three, 

 second nearly twice as long as third, 3 7 oblong, subequal. Thorax short, 

 three-fourths wider than long, sides strongly curved, suddenly narrowed and 

 feebly constricted near apex; sculpture hidden by the dense transversely 

 placed scales. Elytra oblong-oval, one-fourth wider at base than thorax, 

 sides parallel to apical third, then broadly rounded to apex; striae fine, 

 their punctures small, close-set, each closed with a small oval yellow scale. 

 Under surface of abdomen thickly clothed with pale yellowish hairs, of 

 sterna with small silvery-white elliptical scales. Suture separating fourth 

 and fifth ventrals obsolete except near the margins in female, more distinct 

 in male, the fifth ventral with a large, deep, median circular impression 

 in the latter sex. Length 3.2 4 mm. 



Lake County, Ind., June 5. Edgebrook, 111., July 20; taken 

 in numbers by Liljeblad. Known also from New Jersey and 

 Texas. More elongate and paler than ocularis, with much longer 

 and very strongly curved beak. The abdomen of female appears 

 to have but four ventral segments on account of the almost obso- 

 lete fourth suture. 



351 ( -). TIIYSAXOCXEMIS OCULARIS Casey, 1910, 129. 



Form of fraxini, less robust. Brownish-yellow, thinly clothed with 

 paler, rather short scales, the intervals with single rows of longer suberect 

 ones. Beak of male short and thick, of female more slender and one-fourth 

 longer. Thorax one-half wider than long, sides strongly curved, narrowed 

 and constricted near apex, disc finely and densely punctate. Elytra 

 two- fifths longer than wide, stria? shallow, rather coarsely punctate. Legs 

 with long sparse hairs on the inner side; front tibia? of male broadly sinuate 

 at apical half. Fifth ventral smaller than in fraxini and not impressed. 

 Length 33.2 mm. 



Knox County, Ind., June 8. Described from Towa. Distin- 

 guished from frtt.riiii by uniform color, thinner and shorter vesti- 

 ture and unimpressed fifth ventral, and from Itelrolii. which it 

 resembles closely, by the equal elytral intervals. 



352 (8690). THYSANOCNEMIS HELVOLA Lee., 1876, 214. 



Oblong, convex. Uniform pale brownish-yellow, clothed with short 

 silken yellow hairs; legs yellow. Beak nearly alike in the sexes; longer 



