214 HELOTA TRIPARTITA. 



Under surface: the triangular middle portion of the 

 bead sparingly covered with fine punctures, the lateral 

 portions more strongly punctured ; the sterna show large 

 punctures laterally ; the ventral segments are exceedingly 

 finely punctured, but on the basal portion of the segments 

 the punctures are somewhat more distinct, moreover the 

 segments have a single hair-bearing puncture on both 

 sides of the middle ; the last ventral segment is broadly 

 truncate at the apex and provided in front of the trun- 

 cation with a shallow semicircular impression. 



The legs are short and simple. 



Hab. West Africa: North Cameroon (Johann-Albrechts 

 Höhe). — The described female, the only specimen of this 

 interesting species with which I am as yet acquainted, 

 belongs to the Berlin Museum of Natural History. 



Synopsis of the Species. 



I. Pronotum bicolorous (fulvous and black). 

 A. Disk of pronotum with one black vitta. 

 Basal half of elytra fulvous, apical half 

 black. 

 a. Elytral interstices flat or nearly flat, 

 the 7 th interstice more or less strongly 

 raised in the cf . 

 X. 9* Apices of elytra pointed, without 

 sutural tooth. — tf. Apices of elytra 

 more or less broadly rounded ; basal 

 ventral segment with a small hairy 

 spot in the middle. 

 *. Apices of elytra in the 9 Du ^ 

 very slightly prolonged, in the 

 cf broadly rounded; 7 th elytral 

 interstice in the cT strongly 

 raised guineensis. 



Notes from the Leyden Museum, Vol. XXV. 



