new Species of Histeridoe. 225 



This species in its opacity and surface-sculpture is similar 

 to PbilosceUs Hai-risii, Lee. ; it is rather more oblong than- 

 Placodes coffer^ Er. 



Hoh. Kuilu, French Congo {Mocquerys, 1892). One 

 example. 



Flatylister mirahilis, sp. n. 



Oblongus, subdepressus, niger, uitidus ; fronte concava, stria bi- 

 sinuata utrinque interrupt a ; clytris striis dorsalibus 1-3 in- 

 tegris, 4 in medio subinterrupta, 5-G apicalibus ; pygidio dense 

 ocellato-punctato ; mesosterno stria late interrupta ; tibiis inter- 

 mediis in medio bispinosis, posticis unispinosis. 



L. 11 mill, (absque mandibulis). 



Oblong, somewhat depressed, black and shining ; the head 

 finely punctured, anteriorly with the epistoma concave, trans- 

 verse stria not deeply impressed, bisinuous, and not reaching 

 the edge on either side ; mandibles robust, each with two teeth 

 on the inner edge, left mandible concave at the base ; the 

 thorax transverse, marginal stria very fine and sinuous behind 

 the middle, lateral stria deep at tlie sides, especially behind 

 the anterior angle, complete behind the liead and at the base 

 it is continued round the angle to a point opposite the base 

 of the third dorsal stria, scutellar fovea small but very 

 distinct ; the elytra, lateral margin with two fine and com- 

 plete stria^, both strongly and similarly sinuous in the middle; 

 dorsal striae, 1-3 complete, rather wide but shallow, 2 bent at 

 the base towards 3, 4 less marked than the third and evan- 

 escent before the middle, 5 apical and not reaching the middle, 

 6 shorter and partly punctiform, the only humeral stria visible 

 is an oblique stria at the base which is very fine ; the pro- 

 pygidium has shallow ocellate punctures, somewhat irregular 

 and rather closely set, the posterior margin is smooth ; the 

 pygidium has similar punctures, but they are more evenly and 

 more closely set, and the posterior margin is slightly raised 

 and smooth ; the prosternum is finely punctulate and its 

 anterior lobe is margined by a semicircular well-marked 

 stria; the mesosternum is emarginate and the strise are lateral 

 only and not close to the edge ; the anterior tibiee are 4-den- 

 tate, intermediate with two teeth close to the tarsi and two 

 very distinct near the middle on the outer edge, posterior has 

 two tarsal teeth and one acute spine behind the middle on 

 the outer edge. 



Except the large size of this species and its peculiar tibial 

 spines, I cannot find any characters to separate it generically 

 from Platylister ovatuSj Er. 



Hab. Khasia Hills. 

 Ann, & Mag. N. Hist. Ser. 7. Vol. v. 15 



