THIBE XVIII. BARIXI. 383 



the more slender, as long as the next two united. Thorax one-halt' wid- 

 er than long; disc rather coarsely, densely and rugosely punctate and 

 with a faint smooth median line. Elytral stria? deep, rather fine; in- 

 tervals densely, confusedly and rugosely punctate. Male with a short, 

 stout, erect process before each front coxa. Length 2.9 mm." (Casey.) 



Described from the District of Columbia. 



581 (8929). CENTBIKUS PERSCITUS Herbst, 1797, 28. 



Oval, convex. Piceous-brown, the elytra, beak, antennae and legs 

 rufous; above rather thinly clothed with narrow, dull yellow scales, 

 denser along sides of thorax; elytra with a few larger and whiter, 

 Widely scattered scales. First joint of funicle as long as the next 

 three, second not twice as long as wide; club as long as the five pre- 

 ceding joints combined. Thorax nearly two-thirds wider than long, 

 feebly converging and slightly curved on basal two-thirds, then broad- 

 ly rounded, converging to apex; disc densely not coarsely punctured. 

 Elytral stria? fine, deep; intervals flat, three to four times wider than 

 stria?, finely and rugosely punctate. Prosternum of male narrowly, 

 deeply excavated, with a short, stout, tapering erect process before each 

 coxa. Length 2.5 2.7 mm. 



Recorded from New Jersey by Casey. Ranges from New Jer- 

 sey and District of Columbia, west to Nebraska, south to Georgia 

 and Texas. Bruner (1891, Ifi) records this and the next species 

 as gnawing small holes in the leaf stems of sugar beets at Lin- 

 coln, Nebraska. 



fig 2 (8918). CENTRINUS PENICELLUS Herbst, 1797, 29. 



Oval or subrhomboidal, feebly flattened above. Piceous-black, dense- 

 ly clothed with narrow, pointed, dull yellowish 

 scales, thore of thorax arranged transversely, 

 those of elytra forming two or three nearly regular 

 rows on each interval; each elytron usually with 

 three submarginal dark spots on apical two-thirds, 

 one or two of these sometimes almost or wholly 

 wanting; beak, antennas, tibia? and tarsi dark red- 

 dish-brown. Beak slender, compressed, half as long 

 as body, finely striate-punctate on sides, polished 

 and almost impunctate above. Antenna? inserted 

 just beyond basal third; second joint of funicle 

 97. x 6? slender, nearly as long as the next two, the latter 



(After Hunter & Hinds.) equal. Thorax one-fourth wider than long, sides 

 feebly converging from base to middle, then broadly rounded to near apex, 

 which is subtubulate; disc densely and rather coarsely punctate, slight- 

 ly carinate at middle. Elytra at humeri distinctly wider than thorax, 

 thence narrowed to the conjointly rounded apex; sculpture hidden by 

 scales. Length 3.5 3.8 mm. (Fig. 97.) 



Southern half of Indiana, scarce; not taken north of Hamil- 



