134 MEMOIRS ON THE COLEOPTERA 



Antennae with the medial joints about twice as long as wide 83 



8 1- Elytral strise and punctures extremely fine. Body slender, very 

 small, moderately convex, black; elytra not very shining, more 

 strongly micro-reticulate than the anterior parts, nearly black, 

 \vithout distinct maculation, each indefinitely somewhat paler lat- 

 erally toward base; under surface black, the legs pale piceo-testa- 

 ceous; head four-fifths as wide as the prothorax, with moderate 

 eyes, the frontal sulci parallel; antennae three-fourths as long as the 

 elytra, blackish, the basal joint obscurely rufescent, gradually thick- 

 ened distally, the medial joints but slightly more than one-half 

 longer than wide; prothorax a third wider than long, the sides evenly 

 rounded to the parallel basal part, which is fully a sixth the total 

 length; base fully three-fourths the maximum width; impressions 

 subobsolete, the stria rather deeply impressed; fovese moderate, 

 linear, the carina short; elytra more than one-half longer than wide, 

 gradually parabolic in apical two-fifths, two-fifths wider than the 

 prothorax; striae not evidently impressed, the very small punctures 

 moderately separated; foveae subequal, near basal and apical third. 

 Length (9) 2.35 mm.; width 0.7 mm. California (Lake Co.), 

 Fuchs triviale n. sp. 



Elytral striae less fine and slightly impressed, the punctures very dis- 

 tinct though small 82 



82 Body rather narrowly oblong-oval, moderately convex, black, the 

 elytra feebly alutaceous and with very feebly defined paler mark- 

 ing, a transverse biarcuate pallid fascia behind the middle, in a darker 

 region, being among the more obvious features; under surface black, 

 the legs piceous; head three-fourths as wide as the prothorax; anten- 

 nae blackish, rather slender, three-fourths as long as the elytra, the 

 medial joints about three-fourths longer than wide; prothorax two- 

 fifths wider than long, the sides strongly rounded to the short parallel 

 basal parts; fovese broadly impressed and more opaque, linear at 

 the bottom, the carina distinct; elytra more than one-half longer 

 than wide, two-fifths wider than the prothorax, gradually rounding 

 behind, the small punctures of the feebly impressed striae distinct 

 and rather close-set; foveae equal, near basal and apical third. 

 Length (cf 9 ) 2.5-2.7 mm.; width 0.8-1.0 mm. California (St. 

 Helena, Napa Co., and Mt. Diablo) sordidulum Chd. 



Body still narrower, moderately convex, black, the elytra feebly palles- 

 cent, with very nubilous darker marking, of which a median unde- 

 fined fascia and a subapical area are more noticeable; under surface 

 black, the legs dark rufous; head three-fourths as wide as the pro- 

 thorax, with the eyes very moderate both in size and prominence; 

 antennae unusual in development, blackish, obscurely rufous basally, 

 rather thick although filiform and not distinctly longer than the 

 head and prothorax, the medial joints barely one-half, the tenth 

 joint only a third, longer than wide, the third much longer than 

 either the second or fourth as in the other allied species; prothorax 

 two-fifths wider than long; base three-fourths the maximum width; 

 sides moderately rounded, oblique and sinuate basally, the parallel 

 part shorter than usual; foveae small, sublinear, slightly separated 



