464 Goleopterological Notices, VI. 



ASlfDATES n. gen. 



This genus difters but slightl}' from Trichochrous. but the 

 small prothorax and broad subdepressed el^-tra, which are nar- 

 rowly reflexed at the sides, give to the two species which at pres- 

 ent compose it, a facies which is quite peculiar and distinctive ; 

 the general habitus is in fact intermediate in some respects be- 

 tween Trichochrous and the genera allied to Allonyx. The epi- 

 pleurff! are broad and flat, and this character distinguishes it at 

 once from Trichochrous, although in other structural features it 

 is virtually similar. The epipleurii? are relativelj' altogether as 

 as wide as in Eudasytes, or even wider; they do not, however, 

 follow the apical curve of the el3'tra as in that genus, but become 

 abruptly obsolete at a greater distance from the apex. The spe- 

 cies are mutually ver^' distinct in appearance and ma}^ be thus 

 distinguished : — 



o 



Pubescence coarse and rather dense, not intermingled with erect hairs ; abdomen 

 entirely red 1 rufiTeiitris 



Pubescence fine and very sparse, intermixed with short but inconspicuous 

 erect hairs; abdomen red, blackish near the base 2 explaiiatu!!> 



It is probable that this genus is local and confined to the coast 

 resfions of California near Santa Barbara and Los Antyeles, a 

 faunal region which is known to support a considerable propor- 

 tion of endemic forms. 



1. A. rilliveiitris n. sp. — Oblong, suboval, broad and subdepressed, 

 black, with a strong a;neous lustre ; ely tral apices, abdomen and legs through- 

 out pale rufous; antennee darker, testaceous, blackish toward apex; integu- 

 ments strongly shining; pubescence rather coarse, long and somewhat dense, 

 closely decumbent, pale fulvous and very conspicuous, without trace of inter- 

 mixed erect setae; marginal cilia short, dense and fimbriform, longer on the 

 elytra. Head two-thirds as wide as the prothorax, nearly smooth, ^■ery obso- 

 letely reticulate, finely, sparsely punctate; impressions feeble and Avidely 

 separated ; epistoma very short and broad ; labrum short, subtruncate at apex ; 

 eyes large but not prominent, nearly attaining the base; antenna; but little 

 longer than the prothorax, feebly serrate, slightly incrassate, the penultimate 

 joints transverse. Prothorax three-fifths wider than long, widest Just visibly 

 l)ehind the middle, the sides subparallel and strongly rounded ; apex arcuato- 

 truncate, slightly narrower than the base; all the angles very obtuse and more 

 or less rounded; disk finelj^, sparsely punctate, the interspaces smooth, not 

 rugose laterally. Elytra scarcely two-fifths longer than wide and nearly one- 

 half wider than the prothorax, the sides subparallel and nearly straight; apex 

 almost evenly and not o])tusely rounded; humeri broadly exposed at base; 



