834 Goleopterological Notices, VI. 



densely and somewhat finely punctate, the legs stout witli the femoral tooth 

 large. Length G.7 mm.; width 3.7 mm. 



Iowa (Keokuk). 



Readily distinguishable from lineaticollis by its stouter form, 

 still larger and more inflated protborax -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. a nnectens.— Narrowly oval, somewhat shining, black, the tarsi antl 

 antennic rufous, the clul) of the latter infuscate; minute elytral setic entirely 

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

 somewhat finely and densely punctate, f\ilvo-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 toward apex, thence more obviously sculptured 

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

 rately developed, the interocular fovea small; antennae inserted quite distinct!}' 

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

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

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

 rugose, the rug;e sinuous and quite uneven, inwardly and posteriorly oblique 

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

 flanks beneath. Elytra distinctlj' longer than wide, nearly cme-third wider 

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

 convexities feeble; carinie 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 punctate 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 otlier, for, with a general facies sugges- 

 tive of lineaticollis, it has the oblique pronotal rugic of pahna- 

 collis and some other pubescent species. The prothorax is very 

 much smaller than in any other species of the lineaticollis group 

 of the genus. The types are probably- males. 



R. medial is. — Subrhomboid-oval, strongly convex, rather shining, dark 

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

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

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



