84 Mr. G. Lewis on 



between the fourth and sutural stria is markedly punctate, 

 some of the punctures are lineal in their arrangement and 

 may represent the fifth stria ; the pygidia are distinctly and 

 evenly but not very closely punctate ; the prosternum, striae 

 are almost parallel, but widen out very slightly to the base, 

 joining anteriorly only; the mesosternum, marginal stria 

 complete and rather fine, at the basal angles of the meta- 

 sternum there is a cluster of punctures ; the anterior tibiae are 

 5— 6- dentate. 



The dorsal punctuation of this species is its most distinctive 

 character ; in outline it resembles P. modestus, Lew. 



Hah. Nyasaland. 



AiiiSTOMOitrHUS, gen. nov. 



Corpus oblongum, subdepressum ; caput declivum, fronte a clypeo 

 baud distincta, antice late emarginata ; pronotum antice angus- 

 tatura, fossa antennali sub angulo ; elytra striatis, angulis antice 

 prominentibus ; prosternum corapressum prominulum baud stria- 

 tum, lobo antico acuminata ; mesosternum breve, pedibus sat 

 longis, spinulosis, fossa tarsali fere recta. 



Aristomorplnis rutilus, sp. n. (PI. II. fig. 7.) 



Oblong, piceous, highly polished, slightly convex above ; 

 legs reddish brown ; the head is declivous, forehead, anterior 

 edge (? clypeus) is widely emarginate, with the angles obtuse 

 and the margin thickened and microscopically rugose, vertex 

 is grooved and pitted and has a median tuft of flavous 

 bristles ; the thorax is narrowest anteriorly, lateral edges 

 with strong flavous bristles, anterior margin has a very fine 

 stria close to the edge, behind it is a second stria which is 

 fine and close to the marginal stria behind the head, but the 

 interstice widens out behind the thoracic angles and is more 

 marked and punctiform, the anterior angles of the thorax 

 are produced similarly to those noted on the head, the base 

 has a fine stria which is close to the edge opposite the scu- 

 tellum, but gradually leaves it, forming an inverted arch 

 until its ends are lost in the basal depressions, there are two 

 very shallow impressions behind the eyes and two near the 

 basal angles of irregular outline, and there is a longitudinal 

 cluster of small punctures behind the middle of the neck; 

 the elytra, inner humeral stria very fine and complete, first 

 dorsal well marked and bending inwards towards the base, 

 2 or 3 sinuous in the dorsal area, and all have wide inter- 

 stices and are finely punctate in the apical half, and the 



