LeConte.J BASITROPINI. 399 



Our species represent but three groups : 



Beak with parallel or nearly parallel sides 2. 



" narrower in front, trapezoidal Braohy tarsi. 



2. Tarsi with third joint wider, deeply bilobed, visible from 



above ; Aiitliril>i. 



Tarsi with the third joint bilobed, not visible from above Cratopares. 



Group I. Anttarlbi. 



These species are sufficiently distinguished from Cratopares by the third 

 joint of the tarsi being not narrower than the sscond, and quite visible 

 from above ; the second joint is broad, triangular and rather flat, emargi- 

 nate at tip. The sides of the beak partly cover the antennal cavities, which 

 are large and deep, and but slightly visible from above. The antennee are 

 sometimes very long in the (^, and the first joint is stouter and shorter 

 than usual. The tarsal claws vary according to genus. Except in An- 

 thribus the antennal cavities are somewhat distant from the eyes. 

 Hind angles of the prothorax not directed out- 

 wards 2. 



Eyes emarginate, hind angles of prothorax di- 

 rected outward ; front coxae contiguous EUSPHYRUS. 



2. Front coxae, contiguous or nearly so 3. 



" " well separated by the pros^ernum. 4. 



3. Claws almost cleft, body elongate-cylindrical, 



eyes emarginate PHCENIOOBIUS. 



Claws feebly appendiculate, body stout sub- 

 cylindrical, eyes oval PIEZOOORYNUS. 



4. Eyes rounded ANTHRIBUS. 



Eyes broadly emarginate TOXONOTUS. 



EUSPHYRUS n. g. 



The beak is shorter than the head, broader than long, slightly narrowed 

 at base, obliquely narrowed in front of the Avidest part, not emarginate at 

 tip, but bordered as usual with a coriaceous clypeus ; eyes moderate, ovate, 

 broadly emarginate in front, not coarsely granulate ; antennae not longer 

 than head and thorax ; first and second joints thicker not elongated, 3-6 

 slender, gradually a little shorter, seven and eight slightly thicker, 9-11 

 equal in length, forming a loose compressed club. Prothorax wider at 

 base than its length, graduall}' narrowed from the base, feebly rounded at 

 the sides, not projected over the head in front, but truncate ; hind angles 

 acute, prominent laterally; transverse ridge absolutely basal, scarcely ex- 

 tending along the sides. Elytra cylindrical, deeply punctato-striate, not 

 wider than the prothorax, and about twice as long. Front coxae promi- 

 nent, contiguous; tarsi as long as the tibiae ; first joint as long as the others 

 united, third joint not narrower than the second, very short ; claws with 

 a small acute tooth near the base. Menlum more narrowed behind than 

 usual, buccal fissures wider. 



