2 20 Natural History Bulletin. 



The Clavigeridae live seemingly solitary; the construction 

 and smallness of the oral organs seem to indicate that their 

 nourishment is taken in liquid form. 



Of the larv^te nothing is known, our own investigations 

 yielding doubtful results. 



1. CLAVIGERIDyE. 



Antennae and tarsi tw^o-jointed, anterior coxee contiguous, 

 posterior ones distant. Two genera are represented in our 

 fauna: 



Eves wanting. . . . . Adranes, Lee. 

 Eyes present. . - - - Articerus^ Dahlm. 



Adranes (from m'^pavij-, imbecile). 



Prothorax, when viewed from above, conical ; head 

 cylindrical. Length, i.S mm. - - accus. 



Prothorax campanulate; headobconical. Length 2.5 

 mm. - - - - - - lecoiiiei. 



A. ccECUs, Lcc. Orange yellow, pubescence in regular 

 rows of short, recumbent setre. Length, 1.8 mm. Plate I., 

 Figs. 4 and 5. 



Head variolate, frontal margin straight, antennal foveae 

 large, extending to the middle of the clypeus and leaving a 

 narrow septum connecting the frontal inargin with the labium. 

 The last antennal joint is rounded at the base, longer than one- 

 half the length of the head, squarely truncate and narrower at 

 the distal end. Palpi small, hidden inside of the circular oral 

 opening. Prothorax as long as wide near the base, where 

 the width equals the length of the head, neck half as wide as 

 the base. Sides, at base, rounded, arcuate, straight towards 

 the neck. Disk variolate, with a deep median sub-basal, cir- 

 cular fovea. Elytra with the suture as long as the prothorax, 

 which they very sHghtly exceed in width at base, middle 

 depressed, sides straight, divergent, longer than the suture, 

 posterior margin of each elytron triangularly lobed; disk 

 without impressed lines, apex of lobe tufted with hairs. 



