DYNASTIN^E 217 



the finely laminiform side margins distinct; subapical carina much 

 more (cf), to correspondingly less (9), than half as long as the 

 basal width, the teeth obtuse; prothorax shorter, more than one-half 

 wider than long, the sides evenly converging and very evenly arcuate 

 from base to apex, the basal angles narrowly rounded, the lobe dis- 

 tinct but gradual in formation; punctures coarser and more im- 

 pressed than in any of the preceding, unevenly distributed, generally 

 very sparse, though becoming rather close-set anteriorly equally 

 throughout the width; median line at least in part broadly puncture- 

 less; scutellum elongate, very smooth, broadly and feebly concave; 

 elytra barely visibly longer than wide, only feebly inflated posteriorly 

 and broadly, circularly rounded at apex, fully two-fifths wider than 

 the prothorax and evidently more than twice as long; series only 

 feebly impressed but composed of well spaced and notably coarse, 

 deeply impressed punctures, each with the usual annulus at the bot- 

 tom relatively small; intervals except 1-3-5, which are a little nar- 

 rower, each with more or less complete single series of coarse and 

 widely spaced punctures; on the flanks toward the sides the punc- 

 tures are more or less uneven, confused and not quite so coarse; 

 pygidium bright rufous, convex and longer in the male, minutely, 

 densely punctulate throughout (cf), or becoming smooth and sparsely 

 punctulate medially (9). Length (cf 9 ) 13-0-13.3 mm.; width 

 7.9-8.7 mm. Florida (Jacksonville). Three examples. [Bothynus 

 variolosus and Aphonus hydropicus Lee.] variolosus Lee. 



Hind tibiae longer, the tarsi relatively, or even actually, shorter, not as 

 long as the tibiae 7 



7 Anterior transverse carina of the clypeus high as usual, the teeth 

 broadly obtuse 8 



Anterior carina low or wanting 9 



8 Elytra abruptly and strongly inflated posteriorly. Body oblong- 

 suboval, very convex, extremely polished, dark red-brown through- 

 out, except the elytra, which are piceous-black; head rather more 

 than a third as wide as the prothorax, finely, sparsely, transversely 

 rugulose, the clypeus still more loosely, more brokenly and sharply, 

 the transverse frontal ridge very fine but evident almost from side to 

 side; clypeus only moderately short, the apex rather more than half 

 as wide as the base; prothorax large, convex, one-half wider than 

 long, the sides of the base extending beyond the elytral humeri; 

 sides moderately converging, evenly and distinctly arcuate from 

 base to apex, the basal angles barely more than right and not at all 

 rounded, the median lobe strong; punctures strong and very close-set 

 antero-laterad and nearly as strong but less close thence to the base 

 toward the sides, elsewhere small and sparse, becoming still more 

 remote basally, without impunctate line; basal edge smooth and 

 sharply, very rapidly beveled; scutellum fully as wide as long, con- 

 cave; elytra but just visibly longer than wide, the sides converging 

 anteriorly, broadly rounded at apex, at apical third nearly a fourth 

 wider than the prothorax, three-fourths longer; punctures rather 

 small, extremely shallow and annular and in about seven regular, 

 broadly, moderately impressed dorsal lines, the flanks with two 



