400 



G. LEWI?5 



Oval, convex above, l)lack and shining; the head very linely 

 punctulate , stria complete and feebly sinuous in front, clypeus 

 sliglitly ini})ressed; the thorax punctulate, bistriate striate laterally, 

 outer stria evanescent behind the angle , inner stria is continued 

 behind the head but it is slightly broken behind the eyes; the 

 elytra, striae, outer humeral fine, basal and dimidiate, inner com- 

 plete and rather fine anteriorly, 1-4 and suturai didymous and 

 complete, 5 similar but shortened a little at the base and mar- 

 kedly sinuous before the apex, the suturai turns away from the 

 suture in the scutellar region; the propygidium is bifoveolate and 

 faintly punctulate along its base; the pygidium is smooth and 

 there is a raised margin at the base along half its length; the 

 mesosternum is a little sinuous and anteriorly is clearly marginate. 



ConlijJUs sinuosus is more convex above and more oval in 

 outline than C. didymostrius Mars. It may be recognised also 

 by its larger size , its marginal thoracic stria being continued 

 behind the head and the fifth dorsal stria being sinuous. 



Hab. Bolama, Portuguese Guinea. 



Mici-olister Gen. nov. 



Body oval, rather convex, head retractile, forehead striate, 

 mandibles strongly bidentate, labrum transverse and very narrow, 

 antennal fossej:tes rather large and in the thoracic angle , the 

 prosternum is bistriate, mesosternum markedly emarginate and 

 conspicuously margined, propygidium transverse, pygidium semi- 

 circular and convex, anterior tibiae 4-dentate. 



Superficially the species of this genus resembles those of 

 Phellster in size , in the punctuation of the thorax and in the 

 dorsal striae, but the strongly marked emargination of the me- 

 sosternum indicates its relation to Hister to which also, the form 

 of the antennae connects it. 



Microlister coronatus sp. n. 



Ovalis, parum convexus, niger, nitidus, antennis pedi- 

 busque brunneis; fronte bistriata; pronoto lateribus punctata, 

 stria marginali post caput continuata, laterali Ì7itegra ; 



