TRIBE iv. rossoxixi. 525 



longer; elytra elongate-oval, narrowed at base and 'apex; hind 

 coxa? widely separated. 



822 (9017). DRYOTRIBUS KiMETicrs Horn, 1873, 433. 



Brownish or piceous, opaque; antennas and tarsi paler. Thorax sub- 

 cylindrical, one-fourth longer than wide, moderately convex, constricted 

 near apex, sides moderately curved, base as narrow as the constriction; 

 surface very densely variolate-punctate. Elytra elongate-oval, broader 

 than thorax, humeri broadly rounded, sides feebly curved to apical third, 

 then gradually narrowed to apex; strife broad, coarsely and closely punc- 

 tured; intervals very narrow, convex, each with a row of rather coarse 

 punctures. Under surface very coarsely and sparsely punctured ; legs 

 coarsely punctured and with a few short yellow hairs. Length 2.5 mm. 



Dunediu, Fla., April 1; beneath old boards on the Gulf beach. 

 New Smyrna, Biscay ne Bay, Lake Worth and Key West, Fla. 

 Also Tortngas. "Maritime; breeds in old boards and roots 

 washed up on the beaches." (Rilci/.} Greatly resembles the pre- 

 ceding species, but easily distinguished by the characters given 



in key. 



Tribe IV. COSSONINI. 



Small black or brown, usually glabrous, shining species hav- 

 ing the beak as long or longer than head ; antenna? inserted at 

 middle or near its tip, their grooves descending rapidly ; the an- 

 temwe not received in a deep transverse gular groove as in the 

 next tribe; fnnicle 7-jointed; front coxte separated by at least 

 one-half their own diameters. 



KEY TO EASTERN GENERA OF COSSONINI. 



a. Body pubescent, 

 ft. Front coxa? remote, separated by fully their own width; antennae 



inserted at or behind the middle of beak. 



c. Antennal grooves horizontal, directed against the eyes; pubescence 

 coarse, yellowish; eyes not visible from above. I. HIMATIUM. 

 cc. Antennal grooves strongly descending, directed beneath the eye; 

 pubescence very fine; eyes visible from above. 



II. TRICHACORYNUS. 



M. Front coxae separated by only one-half of their own width; antennae 

 inserted slightly beyond middle of beak, their grooves oblique, di- 

 rected beneath the eye. III. CARPHONOTUS. 

 00. Body glabrous. 



d. Body depressed; beak more or less dilated at tip; antennae inserted 

 near tip of beak. IV. COSSONUS. 



dd. Body not depressed; beak not dilated at tip. 



e. Antennae- inserted distinctly behind middle of beak. 



f. Form very slender, cylindrical; antennal grooves horizontal, di- 

 rected against the eyes; beak not longer than head, conical, 

 tapering toward apex. V. MACRANCYLTTS.* 



*In the Biologia Macrancylits is said to belong to the Rhyncolini, but as the front 

 coxae are widely separated, we retain it here. 



