80 
Journal New York Entomological Society. 
[Vol. VI. 
than wide, the sides feebly convergent and evenly and feebly arcuate from the 
base, the apex circularly rounded, the surface dull; elytra polished, nearly as in 
the female; first ventral segment foveate at the centre. Length 2.0-2.2 mm.; 
width 0.65-0.75 mm. Utah (southwestern). fraterna, sp. nov. 
10— Body more slender, picious black throughout. Female. —Narrowly elongate- 
oval, moderately convex, shining; legs and antennae rufous ; bristles short, pale 
as usual, arranged in almost regular series on the elytra; front feebly convex ; 
eyes moderate in size; clypeus broadly arcuate, very short before the eyes; pro¬ 
thorax nearly one-third wider than long, the sides feebly convergent, evenly ancl 
feebly arcuate from base to the rather pronounced apical angles, which are not 
rounded, the apex circularly arcuate, the punctures fine but deep, moderately 
close; elytra two-thirds longer than wide, nearly two and one-half times as long 
as the prothorax and somewhat wider, the humeral callus minute; series well 
impressed, almost regular but not much more coarsely punctate, the intervals 
sparsely punctulate. Length 1.9 mm; width 0.7 mm. California (LakeTahoe)- 
macilenta, sp. nov. 
Body stouter and more cylindric, bicolored, the head and prothorax rufous, the elytra 
black. Female. —Oblong-subcylindric, moderately convex, slightly dull in 
lustre; bristles short, feeblv subserial on the elytia; head feebly convex, the 
clypeus broadly arcuato-truncate, oblique at the sides to the eyes, which are 
snail; prothorax fully one-third wider than long, nearly as in macilenta, the 
basal angles more broadly rounded; elytra scarcely more than one-half longer 
than wide, but little more than twice as long as the prothorax and not wider, 
the impressed lines feeble and somewhat irregular, more coarsely punctured. 
Length 1.4-1.8 mm.; width 0.55-0.75 mm. California (Calaveras, Humboldt, 
Lake and Los Angeles Cos.). versicolor, sp. nov. 
11— Vestiture of the elytra stiff and bristle-like.12 
Vestiture of the elytra long, slender and hair-like but erect and conspicuous; elytra! 
punctures arranged without order, not at all seriate at any point; last joint of the 
maxillary palpi acutely pointed. 2 5 
12—Vestiture more or less distinctly serial in arrangement.13 
Vestiture not at all serial at any point, the punctures evenly distributed.15 
15—Body strongly cylindro-convex, the elytral punctures differing among themselves 
in size, the larger forming more or less indefinite series; bristles unusually 
long ... x 4 
Body narrow, parallel, distinctly depressed, the punctuation dense, the elytral punc¬ 
tures more uniform in size, the bristles moderate in length, forming close and 
nearly even series. Pennsylvania to Texas. creberrima Mell. 
14—Sides of the prothorax becoming straight and parallel behind the middle. Male r 
—Body subcylindric, somewhat shining, castaneous in color, the bristles coarse,, 
erect, longer than the width of the scutellum, subserial on the elytra ; head mod¬ 
erate, the front flat, the eyes small; clypeal margin feebly reflexed, remotely and 
feebly bituberculate, a small sinus just without each tubercle and thence strongly 
oblique for some distance to the eyes; prothorax nearly as long as wide, circu¬ 
larly rounded at apex, narrowly subsinuate at the middle; angles obtuse; base 
finely margined; surface very obsoletely, transversely impressed at apex ; punc¬ 
tures uneven in size, small, deep, not very close-set; scutellum pointed behind; 
