1896.] of the Coleoptera of South Africa. 169 



Meladroma agnatus. 



Black, shining ; apical part of the palpi and last joint of antennae 

 reddish brown ; labrum smooth ; head coarsely and deeply punc- 

 tured ; prothorax cordiform, truncate at the base with the posterior 

 angle sharp, very roughly punctured, and with a broad median 

 depression reaching from the apex to nearly the base, and without 

 any transverse impression in the anterior part, nor lateral ones near 

 the base ; elytra a little ampliated from the base to two-thirds of the 

 length, and from there slightly narrowed towards the apex, very 

 little convex, costate with the alternate costse very sharp, smooth, 

 and with one series of small punctures on each side, the others more 

 convex, and with a double series of broad punctures ; under side and 

 legs black, punctulate. Length 18-22 mm. ; width 7-10 mm. 



Hab. Ovampoland (Okovango Eiver). 



Gen. TEI^NOGENIUS, Chaud., 

 Bull. Mosc, 1877, i., p. 249. 



Ligula broad, horny, sinuated in the central part, with the angles 

 rounded, not concave anteriorly, and with the basal part deeply 

 hollowed on each side ; paraglossse small, not quite half as long as 

 the ligula, with the tip lanciform and projecting a little, mentum 

 and palpi of Meladroma ; antennae massive ; labrum elongated, but 

 shorter than in Meladroma and Macrochihts, and more rounded at 

 the tip ; prothorax cordiform ; elytra gradually ampliated from the 

 base to long past the middle, costate ; legs moderately long, tarsi 

 triangular, not bristly underneath, but the median part of the three 

 basal joints of the anterior tarsi of the male with lamellae. 



The partial absence of bristles under the tarsi is really the most 

 important characteristic of this genus. 



Two more species of this genus are recorded — one from Benguela 

 (Angola), and the other from Uzagara (Eastern Africa). 



Synoi^sis of Species. 



Intervals of elytra plane, and with one series of punctures on 



each side cor^ndentios. 



Intervals alternatively convex and carinate vicinus. 



Intervals plane, and with three series of punctures each . . . . higiLhrinus. 



Tri^nogenius corpulentus, Chaud. 

 Plate III., fig. 3. 

 Bull. Mosc, 1877, i., p. 249. 

 Black, shining ; labrum smooth ; apical part of palpi slightly 



