486 Coleopterological Notices. 



ELEATES Casey. 



The genera of Bolitophagini may be distinguished as follows: — 



Eyes emarginate in front. • 



I'rotliorax broadly pedunculate at base, tbe sides strongly, unevenly serrate; 



elytra each with four coarse widely interrupted ridges, the fourth less 



evident, the intervals unevenly punctato-tuberculose ...Ilolitotlieriis 



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



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



El ed on a 



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 RolitopliagllS 



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 depressus Rand. 



Form rather slender, always notably more than twice as long as wide ; 

 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 very 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 2.2—2.3 mm. 



Oregon explanatus n. sp. 



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



refiexed OCCideil talis Cas. 



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

 California, which are exactly similar to the typical explanatus but 

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



Explanatus is related to depressus in much the same way that 

 Coxelus pacificus is to guttulatus, Lypsimena californica to fus- 



