new Species of Histeridffi. 15 



with ridge-like interstices somewhat longitudinally raised, 

 especially behind the fourth and fifth striae ; the pygidium 

 similarly sculptured, except that the interstices are more 

 irregular and less longitudinal; the prosternum, anterior 

 lobe somewhat pointed, with two marginal stri« on either 

 side, lateral region punctured ; the mesosternum is sinuous 

 and the marginal stria complete, but it does not join the meta- 

 sternal stria at the suture ; the anterior tibi^ are tridentate, 

 the apical tooth is very strong. 



In its general form tliis species resembles //. Lesehuci, 

 Mars. 



Hah. Uar-es-Salam, Dutch E. Africa. 



JYote. — The mandibles in Hister trepidus^ Lew., and 

 //. Colensoi, Lew. (1897), are bidentate in the middle of the 

 inner edge. 



Hister tinctusj sp. n. 



Ovalis, parum couvexus, niger, nitidus ; fronte foveolata, stria In- 

 tegra ; pronoto stria laterali externa basi abbreviata, interna 

 baud interrupta ; elytris striis 1-4 integris, 5 diinidiata, suturaH 

 subintegra ; propygidio bifoveolato ; pygidio parum dense 

 punctato ; tibiis latis. 



L. 6|-7i mill. 



Oval, little convex, black, with a bluish tint on the elytra, 

 shining ; the head, forehead foveolate, like that of Hister 

 cavifrons, Mars., surface very feebly punctulate, stria com- 

 plete, sometimes bisinuous, sometimes straighter; the thorax, 

 marginal stria is fine and ceases behind the eye, outer stria 

 commences witliin the anterior angle and terminates before 

 the base, inner stria is complete and crenulate behind the 

 head and nearly reaches the base, being clearly longer than the 

 outer stria, surface microscopically punctulate; the elytra, strije, 

 internal subhumeral apical and reaching beyond the middle, 

 1-4 complete, interstice between the second and third rather 

 wide at the base, 5 apical and not quite reaching the middle, 

 sutural arcuate and shortened a little before and behind ; the 

 propygidium bifoveolate, not densely punctured, punctures 

 some small and some large, intermixed ; the pygidium is more 

 evenly punctured and the punctures are more dense ; the 

 prosternum impunctate and without strige; the mesosternum 

 rather deeply emarginate, marginal stria strong and com- 

 plete ; the tibise, anterior 4-dentate, apical tooth bifid at the 

 apex, intermediate and posterior multispinose. 



The tibiae of this species are broad and tlie tarsi short, 



