486 Coleopterolo(jical Notices. 



ELEATES Casey. 

 The o-onera of Bolitophagini may be distinguished as follows: — 



Eyes emarginate in front. 



Prothorax broadly pedunculate at base, the sides strongly, unevenly serrate ; 

 elytra eacb -with four coarse widely interrupted ridges, tbe fourth less 

 evident, the intervals unevenly punctato-tuberculose ...Kolitof liei'HS 



Prothorax not pedunculate at base, the sides not serrulate ; elytra eacli 

 with nine fine equal and entire costse, the intervals uniseriately punctate. 



Eledona 



Eyes completely divided. 



Head deeply inserted ; pronotum lobed in the middle at apex, broadly 

 pedunculate at base, the sides finely but strongly serrulate ; elytra each 

 with four interrupted ridges, the intervals each with two rows of coarse 



punctures separated by a finer interrupted ridge BolitopliagllS 



Head not deeply inserted, the eyes distant from the prothorax, the pronotum 

 not, or but very feebly lobed, the base not pedunculate ; sides not serru- 

 late ; elytra each with nine fine continuous and equal costae, the intervals 

 evenly and uniseriately punctate Eleates 



It will be observed that Eleates is related to Bolitophagus in 

 nearly the same way that Eledona is to Bolitotherus ; in both 

 of those first mentioned the sides of the prothorax are sometimes 

 extremely feebly and indefinitely undulated, but never properly 

 serrate. The species of Eleates may be defined as follows ; — 



Eyes coarsely faceted ; sides of the pronotum broadly explanate. 



Form robust, not more than twice as long as wide ; apical angles of the 

 prothorax distinctly rounded depressilS Rand. 



Form rather slender, always notably more than twice as long as wi<le; 

 prothorax a little more than twice as wide as long, the apex deeply 

 emarginate, the middle feeble arcuate ; apical angles subacute and more 

 narrowly rounded ; disk vf.ry densely and rather more coarsely punctate, 

 feebly impressed along the middle ; elytra similar to those of depressus 

 but distinctly longer, the punctures of the intervals a little coarser ; 

 under surface densely punctured. Length 5.6 ; width 2.'J-2.3 nun. 



Oregon explaiiatus n. sp. 



Eyes finely faceted ; form more convex ; sides of the pronotum very narrowly 



reflexed occideii talis Cas. 



1 have before me a series of six specimens from Marin Co., 

 California, which are exactly similar to the typical explanatus but 

 uiiilormly smaller, — length 4.4-4.8 mm.; width 1.8-2.0 mm. 



Explanatus is related to depressus in mucli the same way that 

 Coxelus pacific us is to guttulatus, LyjJsiviena califormca to fus- 



