CERAMBYCIOE 307 



as in aculifer; antennae a little longer than the body, slender, the scape 

 long and notably thick; legs and tarsi as in aculifer. Length (9 ) n-2 

 mm.; width 4.2 mm. Texas. 



Belongs near aculifer Say (marginellus Hald.) but larger, much 

 more elongate, with a longer and thicker scape and with the outer 

 antennal joints less rapidly abbreviated. In both sexes of aculifer 

 the third antennal joint is as long as the last four combined, the 

 antennae being not longer than the body even in the male; in divisus 

 they are much longer than the body in the female and probably 

 still longer in the male, with the outer joints less rapidly shorter; 

 the more basal joints are more strongly dilated at their apices. 

 Albescens Hald., is a species widely distinct from aculifer in its larger 

 size, denser and whiter vestiture, bifasciate with brown near the 

 apex and much longer antennae, these being nearly as in divisus but 

 with more slender scape; the latter species is much more slender 

 in bodily form; albescens has for a synonym asperatus Hald. 



Leptostylus mutilus n. sp. Form short, convex, dark piceous-brown, 

 the integuments not concealed by the small and uniformly ochreous- 

 brown hairs, which at certain parts are denser though of the same color 

 throughout; head small, much narrower than the prothorax, not dis- 

 tinctly sculptured, the antennae ( 9 ) longer than the body, maculate 

 with ochreous and brown; prothorax not quite twice as wide as long, the 

 sides feebly rounded, only slightly more so and broadly arcuate medially, 

 without any appearance of prominence or tubercle, the surface almost 

 even, sparsely and rather finely punctate, with a transverse series of 

 coarser punctures along the basal and apical constrictions, also having 

 a small tubercle at each side of the middle anteriorly; elytra one-half 

 longer than wide, much wider than the prothorax, parallel, rounding in 

 apical third or fourth, the apices very narrowly and obliquely truncate, 

 with obtuse but evident external angle, rather coarsely, deeply and 

 sparsely punctate throughout, the surface with an oblique impression 

 from near the humeri toward the suture, also with several uneven and 

 slightly elevated lines, bearing clusters of denser hairs; femora strongly 

 clavate; basal joint of the hind tarsi twice as long as wide. Length 

 (9 ) 7.0 mm.; width 3.2 mm. Florida (Key Largo). 



This species is allied to terrcecolor Horn, but is shorter in form, 

 with relatively smaller head and prothorax and much more narrowly 

 truncate elytra. 



*Leptostylus bates! nom. nov. This name is proposed for the Central 

 American Leptostylus albescens Bates (Biol. Cent. Amer. Col., V, p. 387) 

 which is preoccupied by Haldeman for a distinctly valid American species, 

 hitherto suppressed as a synonym of aculifer Say, as stated above. 



