76 MEMOIRS ON THE COLEOPTERA. 



shorter and perhaps slightly more narrowed basally, the elytra as long as 

 wide, parallel and very much longer than the pro thorax; abdomen apparently 

 tapering very feebly from base to apex as in fucicola. Length 1.8 mm.; 

 width 0.45 mm. California (Sta. Monica to San Diego). 



Tarphiota iota n. sp. Very small and slender, piceous-black throughout 

 and dull, the abdomen more shining and with the usual small asperulate 

 punctures; antennae dusky-testaceous, the legs pale flavo-piceous; head 

 moderate, the eyes at scarcely their own length from the base; antennae 

 small, nearly as usual, except that the second joint is less elongate than in 

 any of the preceding and not quite as long as the next two combined; pro- 

 thorax moderately transverse, much wider than the head and evidently 

 narrower than the elytra, rounded at base, the sides almost evenly rounded 

 but becoming more converging basally; elytra nearly as long as wide, very 

 much longer than the prothorax; abdomen slender and parallel. Length 

 1.7 mm.; width 0.32 mm. California (San Francisco). 



The smallest and most slender species known to me, differing 

 also in antennal structure to some degree as indicated above. 



Tarphiota insolita n. sp. Form and size somewhat as in hirsiitula but 

 more parallel, similarly black and dull, the pubescence stiff and similarly 

 distinct; head larger than in the preceding, the antennae as in litorina, the 

 eyes at less than their own length from the base, the setae very short as usual ; 

 prothorax as usual, feebly narrowed toward base, less evidently wider than 

 the head or narrower than the elytra than in the other species, the elytra 

 not quite as long as wide, very much longer than the prothorax; abdomen 

 rather less slender than usual though much narrower than the elytra, sim- 

 ilarly punctulate, feebly narrowing apically. Length (contracted) 1.6 mm.; 

 width 0.45 mm. Queen Charlotte Islands. 



Resembles litotina and hirsutula but with a rather larger head and 

 notably wider abdomen. 



Tarphiota seditiosa n. sp. Slender, moderately depressed, deep black, 

 opaque, the reticulation very strong, rather coarse and polygonal but feeble 

 on the slightly shining abdomen; legs and antennae blackish-piceous; punc- 

 tures fine and obscure, but, on the elytra and especially toward the middle 

 of the pronotum, there are comparatively large areolate punctures bearing 

 the somewhat coarse plumbeous pubescence and not visible except under 

 oblique view; head and antennae nearly as in insolita, the former relatively 

 much smaller; prothorax similar but shorter and more notably wider than 

 the head, evidently narrower than the elytra, narrowed toward base; elytra 

 not so elongate, quite evidently shorter than wide, much longer than the 

 prothorax; abdomen more slender, long and parallel. Length (extended) 

 2.3mm.; width 0.38 mm. Queen Charlotte Islands. Two similar specimens 



Distinguishable readily from insolita by its shorter prothorax, 

 more slender form, rather stronger and closer areolate punctures of 

 the pronotum and other features. 



