834 Goleopterological Notices, VI. 



densely and somewhat finely punctate, the legs stout -with the femoral tooth 

 large. Length 6.7 mm. ; width 3.7 mm. 



Iowa (Keokuk). 



Readily distinguishable from lineaticoUis by its stouter form, 

 still larger and more inflated prothorax which is much more 

 feebly and indefinitely rugose at the sides beneath, and by the 

 peculiar feeble elytral sculpture. The single type before me is 

 apparently a male, but the fifth ventral is scarcely perceptibly 

 modified on the disk. 



R. annectens. — Narrowly oval, somewhat shining, black, the tarsi and 

 antennse rufous, the club of the latter infuscate; minute elytral setae entirely 

 inconspicuous. Head rather more than one- third as wide as the prothorax, 

 somewhat finely and densely punctate, fulvo-pubescent; eyes narrowly sepa- 

 rated on the front, broadly sinuato-truncate anteriorly ; beak almost as long as 

 the head and prothorax, nearly straight, feebly and obliquely flattened distally, 

 finely and sparsely punctate, to ward apex, thence more obviously sculptured 

 and punctate in longitudinal eroded rugie to the base; dorsal carina mode- 

 rately developed, the interocular fovea small; antennre inserted quite distinctly 

 beyond the middle. Prothorax small, nearly twice as wide as long, feebly 

 constricted at the apex, the latter one-half as wide as the base; sides strongly, 

 evenly convergent and feebly arcuate from base to apex; disk coarsely plicato- 

 rugose, the rugte sinuous and quite uneven, inwardly and posteriorly oblique 

 toward the middle, moderately disintegrated and with the histre duller on the 

 flanks beneath. Elytra distinctly longer than wide, nearly one-third wider 

 than the prothorax and about three times as long; oiitline oval, the humeral 

 convexities feeble; carinse moderately strong, the intervals alutaceous and 

 nearly smooth, the serial punctures deep, somewhat elongato-subquadrate and 

 separated by about their own lengths, distinct to the apex. Abdomen very 

 densely jninctate throughout, more coarsely so at base. Length 4.8-5.0 mm. ; 

 width 2.6 mm. 



Indiana? 



Two specimens from the Levette cabinet without labels, but 

 probably taken in or near the above region. This species cannot 

 be confounded with any other, for, with a general facies sugges- 

 tive of lineaticoUis, it has the oblique pronotal rugse of palma- 

 collis and some other pubescent species. The prothorax is very 

 much smaller than in any other species of the lineaticoUis group 

 of the genus. The types are probably males. 



R. iue«Iialis. — Subrhomboid-oval, strongly convex, rather shining, dark 

 rufo-piceous, the legs and iipper surface somewhat darker, the elytra with 

 small indefinite paler areas especially toward apex; pubescence sparse, evenly 

 distributed and consisting of short erect yellowish setse on the prothorax, on 



