350 Mr. G. Lewis on some 



Eretmotus approximans, Fairra., 1884, = £". Leprieuri^ 

 Mars., 1862. 



Baron Bonnaire has kindly lent me the tjpe of Fairmaire's 

 species^ and I feel sure tiie above determination is correct. 



Triballus onustus, sp. n. 



T. agresti. Mars., similis, sed multo major ; pronoto stria antice 



haud internipta. 

 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 punctulateon 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, striae obscurely crenulate ; the mesosternum, 

 stria anteriorly interrupted, transverse stria nearly straight 

 and crenulate throughout, surface very sparsely and finely 

 punctulate ; tlie metasternum with a few larger punctures 

 before the posterior coxaj. 



This species is extremely like T. agrestis^ Mars., but it is 

 much larger and the thoracic stria is continued behind the 

 neck. T. agrestis also has no frontal stiia. 



Hah. Zanzibar {Raffray). 



Triballus opimus, sp. n. 



Breviter ovalis, convexus, niger vel obscure aeneus, nitidus ; T. 



homhce proximo affinis et simillimus. 

 L. 3§mill. 



Short-oval, black, or with an geneous tinge, antennte and 

 legs reddish ; the forehead obscurely punctulate, triangulate 

 before the antennai, with a stria on each side which docs 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 smootli, 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 



