TRIBE III. IIVPKKIXI. 171 



broadly rounded, not constricted at tip, disc not channeled, obscurely im- 

 pressed near base and apex. Setae much more slender, scarcely conspicu- 

 ous. Length 3 mm." (Diets.) (Fig. 62, 7.) 



Described from a single male from Florida. The only speci- 

 men labelled sctir/er at Cambridge is notable for its pear-shaped 

 body. 



GROUP III. 



The members of this group have the beak stout, slightly 

 shorter than thorax, distinctly carinate above, often angulated at 

 the sides, separated from the head by a shallow transverse im- 

 pression ; tarsi less slender, the front ones of male with the third 

 joint dilated, deeply bilobed. In most species the thorax is densely 

 and finely punctate, and when the scales are in place it often has 

 a finely granulated appearance. 



KEY TO SPECIES OF GROUP III. 



a. Upper margin of antennal grooves directed toward upper part of 



eyes (Fig. 62, e.) ; scape reaching upper front margin of eye. 

 ft. Thorax coarsely punctate; hind tibiae of male with a brush of long 

 flying hairs along the inner margin (Fig. 62, h.) ; length 3.5 

 4.5 mm. 



c. Thorax wider than long, densely and coarsely punctate; larger, 



3.5 4.2 mm. 225. DELUMBIS. 



cc. Thorax not wider than long, sides less rounded; punctures larger, 



cribrate; smaller, 3.2 3.5 mm. 226. SUBCRIBRATUS. 



1)1). Thorax finely and densely punctate; hind tibia? of male without a 



brush of long flying hairs. 



(1. Alternate elytral intervals with a row of setse; each elytron sub- 

 acuminate at apex. 227. SPARSUS. 

 <1(1. Each elytral interval with a row of setae; elytra conjointly 



rounded at apex. 



e. Thorax suborbicular, strongly rounded at base and sides, its 



hind angles obsolete. (Fig. 62, i. ) 228. ROTUNDICOLLIS. 



ee. Thorax feebly rounded at sides, its base subtruncate, hind angles 



distinct and setae very conspicuous. 229. OBSCURELLUS. 



act. Upper margin of antennal grooves directed toward the middle of eyes 



(Fig. 62, g. ) ; scape of antennae shorter, reaching front margin of 



eye about its middle. 



f. Surface densely scaly; each interval with a row of distinct setae; 



larger, 3.7 4.5 mm. 



g. Beak feebly carinate, the lateral carinae obsolete; thorax dis- 

 tinctly constricted near apex. 230. Ec'in \ATUS. 

 gg. Beak subcostate or strongly tricarinate; thorax not constricted 

 near apex. 231. XOVELLUS. 

 ff. Surface very sparsely scaly; third and fifth intervals convex, al- 

 ternate ones only with setae; smaller, 2.5 2.8 mm. 



232. MINIMUS. 



