46 MEMOIRS ON THE COLEOPTERA 



and forming so conspicuous a feature in the allied tropical genera. 

 The sculpture is generally moderate, the head always with com- 

 pressed longitudinally anastomosing furrows and fine plication, 

 instead of the evenly cribrate sculpture of Limnichites, and the 

 scutellum is always much more elongate and more acutely ogival. 

 The punctures are always feebler or obsolescent toward the sides of 

 the upper surface, especially behind, which is not the case in Lim- 

 nichites, but the prosternum is constantly and similarly sulcate 

 along the middle. Our species, nine in number, may be separated 

 as follows: 



Surface between the punctures, at least toward the sides of the pro- 

 notum, more or less strongly micro-reticulate 2 



Surface toward the sides of the pronotum smooth and polished, devoid 

 of evident micro-reticulation 7 



2 Elytral punctures stronger, distinct, separated by slightly more to 

 evidently less than twice their own diameters 3 



Elytral punctures minute, feeble and very remotely scattered, some- 

 times almost completely obsolete 5 



3 Prosternal episterna finely attenuate anteriorly, attaining the minute 

 lateral incisure of the apex or very nearly. Body oblong, convex, 

 very obtuse before and behind, black, with feeble grayish shining 

 lustre, the vestiture short, close, coarse, decumbent, pale, dull 

 fulvous, feebly mottled with cinereous; head with the usual anasto- 

 mosing longitudinal furrows; prothorax three times as wide as its 

 minimum length, strongly narrowed from base to apex, with straight 

 sides; surface with a very fine and feeble transverse line of greater 

 opacity and with a fine striiform impunctate median line evanescent 

 toward tip, the punctures fine, widely separated, becoming still 

 finer, much feebler and even sparser in the densely reticulate lateral 

 areas; elytra a fourth longer than wide, parallel, the sides straight, 

 rounding at the slightly tumid humeri, gradually broadly and evenly 

 rounding behind in about apical third, the punctures not very deep 

 or coarse, separated by not quite twice their diameters; abdomen 

 rather dull, the micro-reticulation everywhere strong, the surface 

 somewhat longitudinally furrowed, with fine, well separated punc- 

 tures which become coarse and coalescent at the sides, forming a 

 coarse marginal furrow, the last segment (c/ 1 ) with a median area, 

 pointed behind, which is depressed, extremely densely, finely cha- 

 grined and densely clothed with long yellowish-cinereous hairs, 

 the pubescent area smaller, feebler and less definite (9). Length 

 2.15-2.45 mm.; width 1.15-1.3 mm. California (about Monterey 

 Bay). [Limnichus analis Lee , Bull. U. S. Geol. Surv., V, 1879, 



p. 515] analis Lee. 



A Similar to the preceding but smaller and narrower, the vestiture 

 rather closer and more conspicuous, the pronotal punctures still 

 finer and sparser; abdomen more shining, finely, sparsely punctate, 



