288 On neio Sj^eci'es of Ilisteridffi. 



apical, sutuial apical and dimidiate; the propygidinm is 

 coarsely punctate, with the posterior edge very narrowly 

 sniootli ; the pygidiiim is similarly punctate, with the poste- 

 rior margin smooth ; the prosternum, keel ralher narrow, 

 strioe parallel to each other and not apparently quite meeting 

 in front, but distinctly separate at the base; the mesosternuiii 

 is minutely punctulate, with the marginal stria complete ; 

 the anterior tibias 4-5-dentate. 



The general facies of the species agrees witii that ot" 

 P. chorites, Lew. ; the form of the inner subhumeral stria is 

 exceptional in the genus. 



Ilab. Congo River. 



Pachycrcerus minor, sp. n. 



Sabcylindriciis, seneo-niger, uitidiis ; fronte punctulata, stria late 

 iuterrupta; pronoto stria lateral! antice interrupta ; elytris 

 striis 1-3 iutegris, 4 dimidiata, suturali antice abbreviata ; 

 mesosteruo stria late interrupta ; tibiis anticis 5-deutatis. 



L. 2 miU. 



Somewhat cylindrical, black witli a brassy tinge ; the 

 forehead clearly and evenly, not closely punctulate, stria 

 straight above the eyes, oblique anteriorly and widely inter- 

 rupted ; the thorax very irregularly punctured, some points 

 rather large, others extremely fine, lateral stria tine and not 

 continued in front; the elytra, dorsal striae fine, 1-3 complete, 

 4 basal and nearly dimidiate, sufural shortened before the 

 base, outer subhumeral complete, inner apical and dimidiate; 

 the pygidia are punctured like the thorax ; the prosternuui, 

 anterior lobe microscopically strigose, keel rather narrow, 

 strise widen out a little at the base and rather more so ante- 

 riorly, not joining at either end ; the mesosternum has a few 

 irregular and inconspicuous punctures, the lateral stria is not 

 close to the edge, straight at the sides and oblique in front, 

 and distinctly terminates without passing behind the acumina- 

 tion, the suture is scarcely visible ; the metasternum, the 

 lateral stria is well marked and almost straight; the anterior 

 tibise are 5-dentate. 



This and P. nanus are the two smallest species known in 

 the genus. 



Ilab. Umbelosi E.iver, Delagoa ; found under Mimosa- 

 bark. 



