OMOTEMNUS STOLZI. 171 
concave above about the middle; the basal slightly thickened 
portion is finely and distantly punctured; in front of this 
portion the upper side is very rough, owing to numerous 
warts of different size; between these warts short erect 
stiff black hairs are spread; the rough portion is com- 
pressed near the end so as to form a short keel which 
ends in a compressed short tooth of which the top is 
slightly curved backwards; the sides of this tooth and 
the apical portion of the rostrum are finely and sparingly 
punctured. Underneath the rostrum is almost straight, 
slightly bent downwards at the tip; it is remotely covered 
with very minute punctures and provided at the base 
with an impressed mesial line which splits just before the 
middle of the rostrum. 
In the Q the rostrum is almost regularly curved beneath. 
Just before the slightly thickened basal portion a more 
or less distinct linear impression is to be seen, followed 
by a strong punctuation which further on is enclosed 
between raised sides which meet at a distance of one 
third of the length of the rostrum from the apex, forming 
here a sharply raised keel which bifurcates at the apex 
of the rostrum. A faint furrow is present on the sides of 
the apical half of the rostrum. The sides and the under- 
surface of the rostrum are minutely punctured. The under- 
surface is shallowly furrowed and in this furrow two 
divergent impressed lines originate. 
The pronotum is slightly convex, somewhat more in 
the o than in the Q; the sides are regularly rounded, 
narrowing towards the constricted front portion; the basal 
lobe ist narrowly margined, rather strongly sinuated, the 
middle lobe rounded. The scutellum is elongate lanceolate '). 
The elytra are rather short and broad, narrowing in 
straight lines towards the end; each of them is provided 
with 5 impressed lines of which the outermost is shortened. 
The pygidium is convex in the ©’, nearly flat in the 
1) In one of the two smaller females the scutellum is shorter and broader, 
and notched at the tip. 
Notes from the Leyden Museum, Vol. XXXVI. 
