350 Mr. G. Lewis on some 
Eretmotus approximans, Fairm., 1884,= H. Leprieurt, 
Mars., 1862. 
Baron Bonnaire has kindly lent me the type of Fairmaire’s 
species, and I feel sure the above determination is correct. 
Triballus onustus, sp. n. 
T. agresti, Mars., similis, sed multo major; pronoto stria antice 
haud interrupta. 
L. 3 mill. 
Oval, convex, black, shining; the head not thickly punc- 
tulate, with a few large points intermixed, stria strong before 
the eyes, evanescent anteriorly ; the thorax is punctured like 
the head, with the lateral stria continued behind the neck ; 
the elytra are finely punctulate on the disk, with larger punc- 
tures, much scattered, at the sides and on the posterior area ; 
the pygidium is punctured like the head, except that the 
punctulation is more dense; the prosternum feebly punctu- 
late, bistriate, strie obscurely crenulate ; the mesosternum, 
stria anteriorly interrupted, transverse stria nearly straight 
and crenulate throughout, surface very sparsely and finely 
punctulate ; the metasternum with a few larger punctures 
before the posterior cox. 
This species is extremely like 7’. agrestis, Mars., but it is 
much larger and the thoracic stria is continued behind the 
neck. 7. agrestis also has no frontal stria. 
Hab. Zanzibar (Raffray). 
Triballus opimus, sp. n. 
Breviter ovalis, convexus, niger vel obscure eneus, nitidus; 7’. 
bombe proxime affinis et simillimus. 
L. 33 mill. 
Short-oval, black, or with an eneous tinge, antenne and 
legs reddish; the forehead obscurely punctulate, triangulate 
before the antennz, with a stria on each side which does not 
quite meet in front, epistoma rugose, over the eye is a short 
ill-defined sulcus ; the thorax, lateral stria ceases at the ante- 
rior angle, punctures fine and sparse and varying in size, 
along the basal edge there is a continuous line of points, some 
oval, some acicular; the elytra, disk almost smooth, but 
laterally scattered punctures of various sizes are visible ; the 
sculpture of the propygidium and pygidium is limited to a 
fine and scattered punctuation; the prosternum is broad and 
