536 Goleopterological Notices, VII. 



The first of these species differs very greatly from the second 

 in facies and in some structural characters ; other forms will be 

 discovered, as the siDecies of Acholerops are much smaller and 

 more obscure, as a rule, than the components of Eumicrus. 



1. A. zimmerniaiiiii Schaum — Analecta Entomologica, 1841, p. 26 

 (Scydmtenus); punctatus Csy.: Cont. Descr. Syst. Col. N. A., II, p. 86 

 (Eumicrus). 



Narrowly suboval, very convex, polished, the head subim- 

 punctate ; pronotum finely and somewhat sparsely punctulate, 

 the elytra more coarsely and rather sparsely punctured ; pubes- 

 cence short, stiff, sparse, strongly recurved and subdepressed, 

 coarser toward the flanks of the elytra. Head behind the antennse 

 distinctly wider than long, the eyes well developed, anterior and 

 not prominent; sides behind them parallel and nearly straight, 

 gradually feebly convergent and broadly rounded to the broadly 

 truncate base, the basal angles rather evident ; upper surface only 

 moderately convex throughout ; antennal prominences distinct, 

 separated by :^ the total width. Antennae fully ^ as long as the 

 body, the club slender, gradually and feebly incrassate ; basal 

 joint C3'lindric, nan'owed toward base, more than twice as long as 

 wide, only slightly thicker than the second and |- longer ; two to 

 eight slender, subequal in thickness, cylindiic ; second very little 

 thicker, -|, third |, fourth f, fifth |-, sixth ■§-, seventh and eighth 

 equal and just visibly, longer than wide ; six to eight only slightly 

 oblique at apex ; ninth as long as the two preceding and f thicker, 

 obconic, ^ longer than wide ; tenth equally long and a little wider, 

 slightly elongate ; eleventh still slightly thicker, gradually pointed, 

 much shorter than the two preceding. Prothorax slightly longer 

 than wide, ^ wider than the head, widest and rounded laterally at 

 apical third, the sides thence oblique and straight to the base ; 

 surface strongly convex, more coarsely, closely and rugosely 

 punctured toward base, the subbasal foveas not distinct. Elytra ^ 

 longer than wide, a little more than twice as long as the pro- 

 thorax and f wider, widest just before the middle, the sides 

 very evenly and broadly rounded from base to apex ; humeri 

 scarcely visibly tumid above ; disk without basal or sutural 

 modification. Pygidium equilatero-triangular, rounded at apex, 

 very convex, sparsely pubescent. Legs long, the femora rather 

 strongly but gradually clavate ; hind tarsi f as long as the tibioe, 

 the first joint longer than the fifth. Length 1.45 mm.; width 

 0.55 mm. 



