new Species of Ilisteridre. 99 



that there is a short oblique humeral stria, but this oblique 

 stria, very common throughout this family, is not usually 

 called a " humeral " stria — humeral striaj, as usually under- 

 stood, are longitudinal. 



Ilah. Mikindani, E. Africa {Raffray). 



CORNILLUS, gen. nov. 



Body oval or oblong-oval ; forehead impressed longitu- 

 dinally, stria biarcuate ; thorax, antennal fossa in theauterior 

 angle; elytra, striaj fine, crenate, or punctiform ; pro- 

 pygidium tinely and evenly punctured, binodulose ; pro- 

 sternum bistriate ; anterior tibiae 4-dentate. 



This genus has much general similarity to Omalodes ; the 

 species to be included in it are tuherculipyguSy Sch., buUatuSj 

 tuherculutus^ and tuberosus, Lew. 



CONTIPUS, Marseul, Mon. p. 548 (1853). 



I propose to include in this genus G.Jlexuosus, Sch., as the 

 type, because it is the commonest species existing in collec- 

 tions, and (h'f/iiatus, .Mars., with imuunvjinatus and ohlomjusy 

 Lew. For the present 1 would also include the American 

 species, ahhorrens, Sch., p^atanus and suhquadratiis, Mars. 

 The African species with didymous elytral stria I assign to 

 the new genus below. 



Body oval, more or less convex ; head transverse, man- 

 dibles equal and strongly deiitate, labrum short and transverse, 

 frontal stricc complete ; thorax with two lateral striie ; an- 

 tennal fossae are open from below and shallow and somewhat 

 similar to those of Contipus ; elytra, striie are wide and 

 shallow, with fine crenate edges (Marseul termed them did}-- 

 mous), stri;\! 1-4 complete, 5 and sutural nearly complete, 

 sutural turning outward before the base j pygidia almost 

 impunctate; mesosternum feebly sinuous anteriorly; tibi:i3 

 dilated, anterior strongly 3-dentate. Other characters similar 

 to those of Contipus. 



'i'yjic, Contipus diJymostrius, Mars. 



The other known species are sinuosus (convex), proximua, 

 and fractistriusy Lew. (less convex) ; at present only unicpie 

 examples arc in collections, so that it is highly probable 

 the species have secretive and peculiar habits. 



