464 Coleopterological Notices, V. 



Head relatively much larger ; ventral pygidium of the male larger, 

 very slightly longer than wide ; body smaller and less stout. 



testaceum 

 Basal ridges extremely short, flat and broadly but acutely triangular, sepa- 

 rated by barely one-fourth of the discal width ; smaller species, the 

 male with minute setose tufts near the sides of the second and third 

 ventral segments. 

 Head subequal in size to the prothorax ; intermediate femora greatly 



swollen in the male candidlllll 



Head much shorter and narrower than the prothorax ; intermediate femora 



scarcely perceptibly larger in the male inarinicum 



Elytra with two basal fovese. 



Head smaller ; elytra nearly as long as wide. 

 Cephalic fovese large and very widely separated. 



The fovese near the antero-superior margin of the eye ; abdominal 



carinse strong, one-half as long as the segment fOTeicolle 



The fovese unusually posterior in position ; abdominal carinse two-thirds 



as long as the segment COStale 



Cephalic fovese very small, nude, separated by one-half the total width ; 

 front parabolic in outline ; abdominal carinse finely triangular, flat, 



scarcely one-third as long as the segment pacilicillll 



Head slightly larger ; elytra very much shorter, transverse, species more 

 minute 1>reTipeniie 



The following species which I have not seen are attached provi- 

 sionally to the present genus : — 



Elongate, shining, black, the antennse and legs testaceous. 1.3 mm. Sitka, 



Alaska, Probably a true Actium ClaTicorne 



Head narrower than the prothorax; elytral strise extending to the middle; 



abdominal carinse very minute. 1.2 mm. Iowa. Probably a true Actium. 



durum 

 Head transverse, nearly as wide as the prothorax^ the fovese pubescent and 



separated by one-half the width ; elytra with two basal fovese, the discal 



stria very short ; base of the tergum not carinate, the segments subequal. 



Iowa? AflSnities somewhat doubtful parabolicuni 



Antennse not longer than the head [Brendel]. 1.5 mm. Georgia. Affinities 



decidedly doubtful globifer 



Head narrower than the prothorax, the latter wider than long ; maxillary 



palpi with the last joint not larger than the third. 1.4 mm. Virginia. 



Probably not an Actium impunctatum 



Gostale Brend is also unknown to me in nature, but its relation- 

 ship y\'\ih foveicoUe appears to be sufiBciently evident. Calif ornicum 

 Lee. was described by me under the name pallidum ; the discal stria 

 is too short in the figure (Bull. Cal. Acad. Sci., II, PI. xvi). The 

 species has recently been described also by Mr. Raffray under the 



