430 SUBFAMILY X. CURCULIONINjB. 



near the base (Fig. 99, a), not grooved for the reception of the 

 tarsi, the outer apical angle of the front pair produced in a pro- 

 cess ; tarsal claws with a short acute tooth. One species is known 

 which in collections has been found mixed with Rhinoncus 

 pyrrliopus. The large tooth of the tibiae is, however, readily seen 

 if looked for. 



661 (- -). CNEMOGONUS LECONTEI Dietz, 1896, 392. 



Stout, trapezoidal. Dark brown to piceous, densely clothed above with 

 blackish scales mixed with short whitish pubescence; condensed in a cruci- 

 form scutellar spot and less defined smaller spots on disc of elytra. Beak 

 subcarinate, punctured. Thorax strongly constricted near apex, disc dense- 

 ly, finely punctured, more coarsely toward base; dorsal channel distinct 

 in basal two-fifths, with a small obtuse tubercle each side. Elytra less 

 than one-third wider at base than thorax; striae wide, with shallow remote 

 punctures; intervals, except the two or three outer ones, each with a row of 

 minute transverse tubercles. Under side coarsely punctured, each puncture 

 bearing a pale scale. Last ventral of male with a coarsely punctured fovea; 

 that of female transversely impressed before its apical margin. Length 

 3.34 mm. 



Whiteface Mt, Adirondacks, N. Y., July 1 13; found on the 

 summit apparently floated up by air currents from the woods 

 below. Recorded from Ontario, Canada; Hazelton, Pa.; Michi- 

 gan and the Lake Superior Region, and Great Slave Lake, B. C. 



IV. ACANTHOSCELIS Dietz, 1896. (Gr., "spine" + "tibia.") 



The species comprising this genus were formerly included 

 with Coeliodes, from which genus they differ especially in the 

 form of the ventral segments and in the front tibi;p being pro- 

 longed outwards at tip. They have the beak nearly straight, 

 shorter and more cylindrical in the male; thorax constricted 

 near apex and with small acute tubercles on the sides; scutellum 

 not visible; pectoral groove not reaching metasternum ; third ven- 

 tral narrowed at ends but reaching the side margin. 



KEY TO EASTERN SPECIES OF ACANTHOSCELIS. 



a. Middle and hind tibiae stout and distinctly widened and toothed to- 

 ward apex (Fig. 99, 6.) ; upper margin of eye elevated; intervals of 

 elytra convex. 662. CURTXIS. 



aa. Middle and hind tibiae more slender, not toothed or widened toward 



apex. 



b. Tarsi broad; upper margin of eye not raised above the level of the 

 front; intervals of elytra flat; larger, 3 3.7 mm. 



663. ACEPHALUS. 



b&. Tarsi slender; upper margin of eye slightly elevated; outer joints 

 of funicle widened; smaller, 2.7 3 mm. 664. MENDICUS. 



