AMARIISL-E 243 



from apex to base and finely, abruptly reflexed, the angles minutely 

 subprominent; impressions very feeble, the stria very fine; surface 

 completely impunctate; foveae extremely feeble but otherwise as in 

 the preceding, impunctate; elytra rather more than one-half longer 

 than wide, not distinctly wider than the prothorax, the parallel 

 sides feebly arcuate; striae fine, very feebly impressed, not evidently 

 punctate, the scutellar rather long, extremely fine and feeble; lateral 

 series somewhat widely interrupted; hind tibiae (cf) with rather 

 numerous fine suberect hairs within; under surface impunctate. 

 Length (cf ) 5.8 mm.; width 2.35 mm. California (Gualala, Mendo- 

 cino Co.) immundus n. sp. 



The posterior tibiae of the male in cequalis are absolutely devoid 

 of internal pubescence but, as the facies is entirely as in the neigh- 

 boring species, I cannot transfer it to Celia, where the prothorax 

 would be incongruous. So also in immundus, nearly all the char- 

 acters are those of Amara, excepting the more erect and stiffer in- 

 ternal hairs of the posterior male tibiae; the ocellate puncture of 

 the scutellar striae and the coloration of the antennae, are to be 

 particularly noted in this comparison; the facies of the body, how- 

 ever, is exactly as in the other species of the fourth group of Brady- 

 tus. All this serves to indicate that general habitus of the body is 

 the criterion of chief importance in estimating genera in the Amar- 

 inae, but this habital character is extremely important and in my 

 opinion decisive. 



If the genus Bradytus is to be maintained, as I believe to be war- 

 rantable, the name septentrionalis of LeConte, is to be restored. 

 The synonymy given above under latior is derived from the work 

 of Hayward; its correctness is demonstrable in the case of Icevistri- 

 atus and liber, but I am doubtful in regard to oregonus. 



Percosia Zimm. 



This is really one of the better defined and more consistent groups 

 of the Amarinae, though wholly disregarded and united with Celia 

 by Horn. In habitus it contrasts strongly with Celia in its much 

 larger size of body, of oblong-oval form and thicker, denser integu- 

 ment. In the cluster of setae on the prosternal process it is appar- 

 ently unique in the Amarine series. The absence of pubescence 

 along the inner side of the posterior male tibiae distinguishes .it 

 from Amara, where this pubescence is always fine, decumbent and 

 dense, but in the Amarinae at large the character is not so important. 



