H. C. FALL. 137 



tate, with an impressed line, wliicii does not reach lieyond the middle. Elytra 

 about one-half longer than wide, snbi)arallel ; lunneri moderate; sides feebly 

 arcuate, without post-humeral sitiuatiou ; strise not deep; intervals about one- 

 half wider than the strife, flat or sliehtly convex, more or less finely wrinkled ; 

 punctuation beneath not dense; legs moderate, last tarsal joint extending beyond 

 the lobes of the third for a distance much greater than their length ; claws 

 strongly toothed. Length 2 mm. ; .08 inch. 



%. Sutural angles rounded; middle and hind tibia.- with rather long, slender, 

 simple nuicro. 



9 . Sutural angles not rounded ; til)iie unarmed. 



Hab. — Lower Califoruia (San Julio). 



Al)out a dozen speciinen.s seen, and presenting no variation 

 wortiiy of note. This species bears a superficial resemblance to 

 several others, but the long polished, apically subimpunctate beak 

 with the characters given in the table will make it easilv recogniza- 

 ble It is probably confined to the Peninsula. 



39. A. inetalliviiin Gerst.— Black, more or less ieneous; vestittire hairy, 

 rather plentiful. Beak rather slender, moderately curved, subequal to the head 

 and )n-othorax ( % ), or longer ( J ), feebly dilated one-fourth fi-om the base, cylin- 

 drical and polished beyond the dilatation ; punctuation variable, but usually 

 rather spar.se; the superior margin of the antennal fossa strongly angulate. 

 First joint of antenme subequal to the two following, second reaching the eye. 

 Front wide, punctate, sometimes with a median impressed line; eyes y)rominent. 

 Prothorax about one-third wider than long; sides strongly arcuate behind the 

 apical constriction ; base not expanded ; surface closely, deeply, but not very 

 coarsely punctate; basal fovea well marked. Humeri moderate; sides of elyti'a 

 sub])arallel, or feebly arcuate ( 9 ) I intervals wide, flat. Beneath coarsely but not 

 closely punctate. Legs moderately stout. Length 1.5-2 mm.; .06.08 inch. 

 'PI. IV, fig. 5). 



'J, . Middle and hind tibise with slender, simple mucro. 

 9 ■ Tibite unarmed. 



Hab. — Texas, Louisiana, North Carolina. South Carolina, Florida. 



There is very little sexual difference in the elytral tips, the angles 

 being oidy slightly less well marked in the male. Very close to the 

 following species, which see for a statement of differences. 



40. A. tro^Io«lytes Mann. — So close to the preceding that a detailed de- 

 scription is not neces.sary. The prothorax is not or but little wider than long, 

 with the sides less strongly arcuate. The elytra are generally more robust, with 

 the sides less parallel. The beak is a little more slender and less elongate in the 



9 ; the tarsi not quite so stout. In troglodytes the third joint is often as wide as 

 long, while in »neto/?»CMJn the third joint is always longer than wide. The claws 

 are also a little more strongly toothed in metaUicam. The form of the thorax is 

 the most reliable character for separation, but the present species is held as dis- 

 tinct from an assemblage of small differences, ratlier than fi-om the presence of 

 any very strongly-marked characteristics. (PI. IV, fig. 6). 



An abundant species from Central to Southern California. 



TRANS. AM. ENT. SOC. XXV. (18) OCTOBER. 1898. 



