Coleopterological Notices, IV. 543 



facie?. But in addition to this they are allied in the deep sulcus 

 of the prosternum common to both; it is however rather less ab- 

 ruptly defined at the edges in the present genus, and besides differs 

 radically in serving as a partial shelter for the beak in repose. 



In A. naso the sulcus is broadly sinuate at the sides, the latter 

 projecting inward just before the coxae, touching the middle of the 

 beak when the latter is folded in against the body. These projec- 

 tions of the sides before the coxae, although not very prominent, 

 are extremely interesting as being the nearest approach to similar 

 modifications of the sides of the rostral sulcus observable in many 

 cryptorhynchs. Aulobaris in fact possesses several suggestive 

 cryptorhynchine characteristics. It is interesting in this con- 

 nection to call attention to the close general similarity of certain 

 barides, as Eisonyx and Aulobaris, to such cryptorhynchs as Bar- 

 opsis and Tyloderma. 



The remaining characters of Aulobaris are not of especially deci- 

 sive value, but it should be mentioned that the third tarsal joint is 

 unusually wide and deeply bilobed, and that the prosternum is pro- 

 longed behind slightly over the mesosternum, the process being wide 

 flat and broadly arcuate at apex. In Madarellus it is still further 

 prolonged upon the mesosternum and is broadly sinuate or sub- 

 truncate throughout its width. In all of our species there is a small 

 cluster of squamules at the base of the third elytral interval, as in 

 many species of Pseudobaris. 



In A. scolopax the sexual characters are very pronounced, the 

 abdomen in the female being strongly conical and upwardly ascend- 

 ing toward apex, with the pygidium small. In the male it is nearly 

 horizontal, with the pygidium much larger. These pygidial differ- 

 ences are of the same general order as in Baris. In the female of 

 scolopax the prothorax is much shorter than in the male, as in 

 Centrinus scutellum-album. 



The species are not numerous and may be separated as follows : — 



Prothorax feebly transverse and much narrower than the elytra, moderately 

 convex, with the basal lobe rather prominent. 

 Prosternal sulcus sinuate at the sides and produced inwardly near the 



coxae ; elytral punctures coarse, deep and rounded 1 Jiaso 



Prosternal sulcus straight at the sides, without the ante-coxal projection ; 

 elytral punctures small, feebly impressed and slightly transverse. 

 Piceous-black to pale rufo-piceous in color. 



Smaller and darker species 2 pusilla 



Larger species, paler in color 3 SCOlopax 



