Goleopterological Notices, IV. 541 



epistomal lobe not at all advanced, very broad with the lateral fissures 

 extremely small, the mandibles well developed, each with two deep 

 notches at apex, feebly arcuate and not overlapping when closed but 

 forming a small triangle. Antenna^, normal, the first funicular joint 

 as long as the next four, the second but slightly longer than th<! 

 third, the club moderate, pubescent, scarcely longer than the four 

 preceding joints combined and with the basal joint constituting less 

 than one half the mass. 



The prosternum is very large, flat, thrown up in a transverse 

 tumid ridge just behind the coxjb, in the position of the two trans- 

 verse tubercles of Glyptobaris,' the ridge strongly declivous behind 

 and produced over the mesosternum, terminating on a line drawn 

 through the middle of the intermediate coxae, the process very wide, 

 acutely angulate at the sides and broadly sinuate between the angles. 

 At a short distance behind the anterior margin there are two deep 

 angulate more or less coalescent foveas, each continued posteriorly 

 for a short distance by a fine but distinct fold of the surface. Ante- 

 rior coxfe small, very remote, separated by fully twice their own 

 width. Legs moderate, the tarsi normal, with the third joint broad, 

 bilobed; claws moderate, perfectly free, somewhat divergent. Scu- 

 tellum small, triangular or ogival, not in the least emarginate at base. 



That two genera, mutually so dissimilar in appearance as Mada- 

 rellus and Glyptobaris, should in reality be so closely allied, is one 

 of these interesting surprises continually offering themselves in these 

 little-studied groups. I am quite unable to agree with LeConte in 

 his statement that Ampeloglypter makes a gradual transition from 

 J3aris to Madarellus, for the latter is much more closely allied to 

 Baris through Onychobaris than is Ampeloglypter, this genus 

 forming one of the pseudobaride series; but, at the same time, the 

 position assigned to Madarus by Lacordaire seems to be equally 

 unnatural. 



1 Jfladarelllis UlldulatllS Say— Joum. Ac. Nat. Sci., Phila., Ill, 

 p. 315; Ed. Lee, II, p. 177 (Rhynch;enus); sanyuinicollis Dej. Cat. 3ed, p. 311. 



This species is so well known, that a detailed description is need- 

 less at the present time. The form is subcuneate, rather wider at 

 the middle of the prothorax than at any other part, the thoracic 

 punctures extremely minute, feeble and sparse, but becoming rather 

 closer, stronger and feebly rugulose or subasperate anteriorly, rugu- 



' Compare also the South Ameiican genus Scambus Sch. 



