new Species of Ilisteridje. 217 



pygidium is similarly punctured, margined externally with a 

 smooth sonicu hat ch-vatcd rim ; the prosternuin is bisfrisite, 

 strije t'vanesccnt anteriorly before the suture, the anterior lohe 

 is margined with a deep stria which, being obliijue laterally, 

 leaves a wide margin, the surface of the lobe and the keel is 

 sparsely pnnctulate and microscopically strigose ; the meso- 

 sternum is feebly sinuous and margined with a well-marked 

 stria; the mefasternum has a lateral stria only; the anterior 

 tibia? are 3-dentate, but the apical tooth is bitid, 



1'he smooth margin of the propygidium iii this species 

 agrees somewhat with that of JI. latimargo, Sch. The 

 S|)ecies belongs,- like //. (fibberosus, to an American section of 

 the genus with a striate prostcrnum. 



Hah. Costa Kiea. " IVarba Esmeralda, May 1890" 

 [P. JiioUeii). 



Ih'ster planimartjo, sp. n. 



Ovnlis, convcxus, niger, nitidus ; fronte punctulata, stria antice 

 recta ; Ihoracc stria margiiiali iuterrupta, interna Integra ; 

 elytra striis 1-4 integris, 5 brevi, cuturali dimidiata ; propygidio 

 ])osti('o transrersiin punctato, margine lateral! anticoque lievi ; 

 ])ygi(lio punctato, marginc cxtus la^vi ; prosterno bistrialo, striis 

 posticis conjunctis. 



L. -4 J mill. 



Oval, convex, black and shining; the head, surface pnnctu- 

 late, frontal stria nearly straight anteriorly ; the thorax, 

 marginal stria interrupted behind the neck, lateral stria coin- 

 ]dete, ])aralkl to the sides and somewhat strong laterally; 

 the elytra with a line oblique humeral stria only, dorsal striic 

 1— i complete and rather dee]), 5 apical, short and punctiforin, 

 Rutural apical and dimidiate, turning away from the suture 

 posteriorly ; the propygidium is transversely densely punc- 

 tate, with the base and sides rather broadly smooth ; the 

 pygidium also densely punctate, with an outside smooth 

 margin ; the prosternnm, anterior lobe marginate, keel bi- 

 striate, striie joining behind, surface of lobe microscopically 

 strigose; the mesosternum feebly sinuous in front, marginal 

 stria conii)lete; the anterior tibia with an apical bifid tooth 

 and two simple teeth behind it. 



In the American series this species may be placed next to 

 the last and near //. lotimargo^ Sch. 



Hah. Costa Rica {JJonchier) . 



Ulster cinctipyfjus, sp. n. 



Brevitor ovatus, eonvexus, niger, nitidus : fronte antice depressa, 

 stria integra ; tliorace antice bisinuato, stria marginal! ad oculos 



