Coleopterological Notices, V. 333 



exactly equal, the fifth longer than the two preceding ; ungues long, 

 rather strongly, almost evenly arcuate, divergent and irregular, 

 being strongly compressed toward the middle, with the inner edge 

 thinned out and very acute. 



This interesting genus is probably more closely related to Alianta 

 Thorns, than any other, but differs in its spinulose tibiae, longer and 

 compressed tarsal claws, much more finely acuminate mesosternal 

 process, less incrassate antennae and many other characters. From 

 Heterota, Rey, it differs greatly in antennal structure, in the short 

 basal joint of the hind tarsi, as well as in sevei:al features enumerated 

 under Alianta. From Halobrectha Thorns, it differs in its almost 

 filiform antennae and other characters. It is confined to the sea- 

 beaches of the Pacific coast. 



T. pa.llidipes u. sp. — Moderately depressed, intense black throughout, 

 the antennse piceous-black, paler at base ; legs extremely pale and uniformly 

 flavate throughout ; integuments opaque, finely and strongly granulato-reticu- 

 late, the abdomen less strongly, more coarsely so and somewhat shining ; 

 anterior parts finely and extremely obsoletely, though rather densely, punc- 

 tulate, the punctures of the elytra almost wholly obsolete, the abdomen more 

 strongly and distinctly, evenly and somewhat closely punctate ; pubescence 

 short, rigid, dense, cinereous and conspicuous, longer, finer and less distinct 

 on the abdomen. Head as long as wide, slightly but distinctly narrower than 

 the prothorax, the eyes convex, at rather more than one-half their length from 

 the base ; tempera behind them feebly convergent and arcuate to the base ; 

 antennae slender, extending to basal fourth of the elytra. Prothorax scarcely 

 more than one-third wider than long ; sides subparallel, broadly, feebly arcuate 

 anteriorly, slightly convergent and nearly straight in basal half; basal angles 

 slightly obtuse but scarcely at all rounded ; base broadly arcuate, distinctly 

 wider than the truncate apex ; disk widest slightly before the middle, broadly 

 flattened toward the middle, the median line sometimes obsoletely impressed. 

 Elytra large, quadrate, about as long as wide, one-third wider and three-fifths 

 longer than the prothorax ; sides subparallel ; humeri rather broadly exposed 

 at base. Abdomen distinctly narrower than the elytra and slightly wider than 

 the prothorax, as long as the anterior parts ; sides parallel and nearly straight ; 

 border moderately thick. Length 2.9 mm. ; width 0.75-0.8 mm. 



California (San Francisco to San Diego). 



This is one of the characteristic aleocharinides of the southern 

 California sea-beaches, and the large series in my cabinet indicates 

 scarcely any variation. It is allied to the Alaskan Tachyusa fuci- 

 cola Makl., — afterwards referred to Homalota Er. nee Mann., — but 

 differs in its clear and uniform flavate legs, fucicola having the legs 

 piceous, with the knees and tarsi paler. 



