Coleo2:>terological Notices, VI. 751 



fully as long a,s wide, feebl}^ convex, truncate and strongly, cana- 

 licularly impressed at base, the angles very broadly and obliquely 

 rounded ; tempora thence long and parallel to the eyes, which are 

 very small and somewhat feebly convex ; punctures fine, simple 

 and sparse; antennw long, filiform, not at all incrassate, as long 

 as the head and prothorax, the joints inflated at apex and very 

 narrow at base, the last joint abruptly much narrower, slender, 

 very feebly bilobed and as long as the three preceding together ; 

 maxillary palpi slender, the last joint but slightly longer and 

 wider than the third, obliquel}^ truncate at apex. Prothorax 

 trapezoidal, widest and moderately narrowly rounded at apical 

 fourth, about as long as wide and distinctly' narrower than the 

 head ; sides moderately oblique and nearl}^ straight ; apex broadly 

 ai'cuate ; disk depressed, minutely and sparsel}' punctate, with a 

 coarse and deep rounded groove along the basal margin. Elytra 

 two-fifths longer than wide, three-fourths wider than the pro- 

 thorax, broadly and almost semi-circularly rounded in apical fifth, 

 not dehiscent, leaving one-third of the abdomen exposed, dis- 

 tinctly wider behind the middle than at base, the sides almost 

 straight; humeri rounded, rather widely exposed at base; disk 

 with a distinct intra-humeral impression but not otherwise modi- 

 fied, somewhat densely punctate, not reticulate, the punctures 

 fine and pubiferous, mingled with others which are a little larger 

 and shallow, bearing exceedingly minute set.ne. Abdomen polish- 

 ed, finely, sparselj^ and subasperately punctate. Legs very long, 

 rather slender. Length 5.0 mm.; width 1.65 mm. 



California (southern salt lakes). This species is the most re- 

 markable of the tribe, not only in size but in many points of 

 structure. The male has the fifth ventral scarcely longer than 

 the fourth, broadly and distinctly sinuate at the middle of the 

 wide apex, the genital segment relatively somewhat small, evenl}' 

 and feebl}^ convex, truncate at apex ; the exposed part of the 

 oedeagus consists of two lateral rounded laminate lobes and a 

 more slender median part, which is abruptly bent upward at apex. 



Subgen. Taiiai'tliropsis Csy. 



2. T. 'bre'Vipeiiiii^ n. sp. — Narrow, snhparallel, dcpresseil, dull, the 

 elytra alutaceous, jmle rufo- testaceous, the abdomen ])ice()ns beneath, black- 

 ish above, the elytra blackish, paler at apex and in basal third; pubescence 

 fine short, rather sparse, longer and more cinereous, denser and more consi)icn- 

 ous on the elytra, decumbent. Head (quadrate, as long as wide, truncate but 



