508 SUBFAMILY X. CURCULIONIN.S]. 



6&. Tibiae not angulated at base; fuscous, elytra largely pale brown; 

 thorax and elytra with tufts of black bristles. 802. FUSCATUS. 

 aa. Femora sinuate near the tip. 



e. Femora armed with two small denticles; length 7 11 mm. 



f. Elytra black or fuscous, the apical third densely covered with 



white or yellowish scales. 803. LAPATHI. 



//. Elytra dusky, with two paler transverse bands; thorax rounded 

 on sides, strongly narrowed in front, feebly constricted. 



804. OBLTQUUS. 



ee. Femora armed with a single acute tooth. 



g. Pale yellow-brown; thorax with an abbreviated median carina; 



larger, 7.8 mm. 805. HELVUS. 



gg. Black, clothed with depressed, dirt-colored scales; thorax not 



carinate; smaller, 5.7 6 mm. 806. LUTOSUS. 



799 (8786). CRYPTOBHYJVCHUS PAROCHUS Herbst, 1797, 55. 



Oval, robust. Black, above densely clothed with small brown and 

 black scales; elytra each with an oblique white spot before the middle; 

 antennae and tarsi dark reddish-brown. Thorax at base one-third wider 

 than long, gradually narrowed from the base forward, strongly constricted 

 near tip; surface very uneven, strongly carinate; punctures concealed by 

 the scales. Elytra more than one-third wider at base than thorax, disc 

 finely striate, the stria! punctures small; alternate intervals strongly 

 carinate. Under surface thickly clothed with large, dirty white scales. 

 Length 5 6.5 mm. 



Putnam, Brown and Posey counties, Ind., scarce; April 25 

 Dec. 25. Beaten from elm. Kissimmee River, Fla., Feb. 21. Ranges 

 from Canada and New England to Michigan and Iowa, south to 

 District of Columbia and Florida. Lives under the bark of but- 

 ternut. The two teeth of femora are small and well separated. 

 The wide, flat intervals of elytra are dark brown, the elevated 

 ones mottled with black spots. The oblique white spot varies 

 much in size, being often faintly indicated. The larvae mine the 

 inner bark and sap-wood of weakened and decayed walnut. 

 (Hopkins.) 



800 (8788). CRYPTORHYNCHUS PUMILUS Boh., Schon., 1837, 122. 



Oblong, rather slender. Color of parochiis. Thorax wider near base, 

 less narrowed and more feebly constricted near tip, its median carina 

 feeble. Elytra less than one-third wider at base than thorax, humeri less 

 prominent; sides nearly parallel from base to middle, then gradually con- 

 verging to apex; alternate intervals less elevated, their crests more obtuse. 

 Length 4 4.5 mm. 



Lake and Posey counties, Ind., rare; May 12 13. West 

 Point, N. Y. Jamesburg, N. J., July 4. Ranges from Ontario 

 and New Jersey to Indiana and Florida. The white spot of elytra 

 is distinct and the elevated intervals velvetv-black from base to 



