neia Species 0/ lUstcvidai, 357 



points, otlier lari,'*' punctures beliiuil tlie tnuisvcrse strlic arc 

 condueut, trausvi-rse stria strai;^lit and well niarkcil; the 

 tliorax, marginal stria complete and raised laterally, punctu- 

 late on the disk, but outside the central area the points arc 

 larger and clearer, somewhat dense, with a few line points 

 interspersed, along the Ijase is an irregular line of the larger 

 points; the elytra — stri;e, outer humeral dimidiate, internal 

 complete and very similar to the first stria, 1-i complete, 5 

 abbreviated before the base, sutural apical and dimidiate, 

 interstices finely punctulatc, with a band of larger points 

 along the posterior margin ; the propygidium closely, not 

 densely punctured, with the posterior nuirgin feebly raised ; 

 the ])ygidium, [junctures larger and deeper than those of tho 

 propygidium, and the external rim is manifestly elevated ; 

 the prosternum ^vithout striie, keel feebly punctulate, anterior 

 lobe distinctly ])unctatc ; tiic mesosternum sparsely punctu- 

 late, widely, not deeply eniarginate, stria complete but ends 

 at the metasternal suture ; the anterior tibia3 4-dentate. 



The dense surface-sculpture of the forehead gives a similar 

 appearance of opacity to that seen in A. Schaumi, Mars., but 

 there the similarity ends. 



IJah. Cameroon. 



Platijsoma extrarium, sp. n. 



Oblon^um, subcylindricum, nigrum, nitidum ; fronte punctulata, 

 stria intogra tenuitcr impressa : thoracc stria integra necnou 

 basi conspicuc continiiata ; clytris striis 1-4 intcgris, 5 apicali 

 dimidiata ; pygidio basi punctata, apice lasvi. 



L. 7 mill. 



Oblong, somewhat cylindrical, black, shining ; the head 

 anteriorly impressed, surface finely punctulate, stria complete 

 but very fine anteriorly, where it crosses the impressed area ; 

 the thorax, anterior angles somewhat produced, surface 

 microscopically punctulate, lateral rim carinate and joins the 

 lateral stria behind the eyes, lateral stria com])lete anteriorly 

 and posteriorly, before the scutellum there is a distinct oval 

 fovea in front of the basal line ; the elytra at their bases have 

 a corresponding stria to the la?al thoracic one, but it is not 

 quite so deep and it is carried along the lateral border of the 

 elytra as an inner epipleural stria, there is a fine oblique 

 basal humeral line, strife 1-4 are complete with crenulate 

 edges, 5 apical and dimidiate, sutural wanting; the propy- 

 gidium is irregularly punctured, punctures for the most part 

 not circular in outline, the basal margin and a small triangular 

 median basal space smooth ; the pygidiuni is punctured at 



