Goleopterological Notices, VI. 835 



the elytra uneven and denser on the small pale areas. Head more than one- 

 third as wide as the prothorax, coarsely, densely sculptured, not very densely 

 f iilvo-pubescent ; eyes large, very coarsely faceted and almost contiguous 

 on the front; beak rather long and slender, feebly arcuate, nearly one-half as 

 long as the body, cylindrical, shining and finely, distinctly punctate toward 

 apex, dull, longitudinally and feebly rugose and not distinctly punctate to- 

 ward base, the dorsal carina almost obsolete except toward base; antennae in- 

 serted distinctly behind the middle, the basal joint of the funicle as long as the 

 next two. Prothorax small, rapidly conical, nearly twice as wide as long, the 

 sides strongly convergent from the base and only just visibly arcuate; disk 

 with fine, strongly elevated and anastomosing rugse, which are rather widely 

 distant and inwardly oblique posteriorly, the median carina fine and distinct, 

 the rngse feebler, closer and less defined on the flanks beneath. Elytra from 

 above one-fourth longer than wide, one-fourth wider than the prothorax and 

 not quite three times as long, the carinas rather broad and moderately elevated, 

 the intermediate intervals also obsoletely carinate, the serial punctures mod- 

 erately coarse and close-set, slightly elongate and distinct to the apex. Abdo- 

 men shining, feebly and not very closely punctate, rather densel}^ so however 

 on the fifth segment; metasternum coarsely but somewhat sparsely punctured ; 

 legs moderate, the femoral tooth well developed. Length 4.2 mm.; width 

 2.3 mm. 



Arizona ('Tu9son). Mr. Wickham. 



This is a distinct species, readii}' distinguishable fi'om any 

 other by the subcarinate intermediate intervals of the elytra ; the 

 eyes are even more approximate than in the lineaticollis group. 



There are before me two specimens which I refer to pubescens 

 Horn ; one of them is from an unknown part of Arizona, and the 

 other from San Augustine, New Mexico, collected by Mr. Cock- 

 erell ; there are some slight differences between them but both 

 satisfy the description sufficiently well ; the alternate elytral in- 

 tervals are flat, and the eyes are less approximate than in me- 

 dialis. 



R. parvulus.— Narrowly oval, very convex, strongly shining, pale rufo- 

 testaceous throughout, glabrous. Head nearly two-fifths as wide as the pro- 

 thorax, rather sparsely punctured; eyes in considerable part covered by the 

 ocular lobes in repose, widely separated on the front, the interocular fovea dis- 

 tinct; beak rather slender, cylindrical, evenly and feebly arcuate, longer than 

 the head and prothorax, shining, finely but distinctly, sparsely punctate, not 

 at all carinate above toward base; antennae slender, inserted at about the mid- 

 dle, the basal joint of the funicle elongate as usual, club long and narrow, 

 pointed. Prothorax fully three-fourths wider than long, feebly constricted 

 near the apex, the latter nearly one-half as wide as the base; sides strongly 

 convergent and broadly, evenlj' arcuate from the base; disk strongly and 



Annals N. Y. Acad. Sci., VIII, Nov., 1895.— 56 



