292 SUBFAMILY X. (TUt TLIOXINJE. 



tures very large, remote; intervals convex, with small, scattered shining 

 tubercles. Length 4.35 mm. (Fig. 81, c.) 



Described from Metacumbe Key, Florida. 



421 (10,981). AXTHONOMUS COSTULATUS Suffr., 1871, 137. 



Oval, robust. Dark reddish-brown to piceous, rather densely clothed 

 above with minute yellowish or fulvous scales, elytra mottled with patches 

 or lines of paler and darker scales; under surface rather densely clothed 

 with coarse white pubescence; thorax with a narrow median white line. 

 Beak long, slender, opaque, slightly widened at tip, striate, punctured and 

 thinly pubescent. Thorax two-thirds wider at middle than long, strongly 

 narrowed in front, constricted near apex, sides rounded, disc deeply, densely 

 and rather finely punctured. Elytra at base one-third wider than thorax, 

 one-half longer than wide; striae wide, their punctures rather large, trans- 

 verse, close-set; intervals strongly convex, a small acute tubercle near base 

 of third and a feeble tuberosity on fifth near declivity. Length 2.5 3.2 

 mm. 



Lake Okeechobee, Fla., Mar. 0. Known also from Key West, 

 Cocoanut Grove, Punta Gorda and Biscayne Bay. Fla. The 

 toothed tibiar> easily separates this from julichi. A. irroratit* 

 Dietz (1891, 198) is a synonym. 



SUBGENUS V. (Anthonomus.) 



As here treated this submenus comprises the eastern species of 

 the first seven groups of the submenus Anthonoinns as limited by 

 Dietz, or those having the antennal funicle 7-jointed. The prin- 

 cipal characters are those given under the generic heading and in 

 the key to subgenera. Dietz recognized 47 species from the United 

 States as belonging to the seven groups, while Fall and Pierce 

 have each since described a number of others. 



KEY TO GROUPS OF SUBGEXUS AXTHOXOMUS. 



a. Vestiture mainly of hairs or narrow hair-like scales; true scales, if 



any, arranged in spots or lines (except in concinnus.) 

 b. Claws with a long, strong tooth (except in sitbguttatus) ; upper sur- 

 face distinctly pubescent. 



c. Elytra conjointly rounded at apex; pygidium of male very little 

 exposed; pubescence arranged in patterns on the elytra. 



GROUP A. 



cc. Elytra not conjointly rounded at apex; pygidium, at least of male, 

 more fully exposed; pubescence uniform, or condensed in 

 spots or lines without pattern. 

 (I. Front femora bidentate, the front tooth often very small. 



GUOUP B. 

 dd. Front femora one-toothed. 



e. Third ventral segment longer than fourth, fifth shorter, 



rarely as long as fourth in male. (Fig. 79, b.. c.) 

 /. Elytra with pubescence uniform, rarely condensed in spots 

 or lines, and without denuded patch or band. GROUP C. 

 // Elytra with spots or lines of condensed pubescence, enclos- 

 ing a denuded patch or band. GROUP D. 



