Casey — A Revision of the American Paederini. 179 
acters as stated in the table. Since then another member of 
the genus has occurred, and a specimen was kindly sent to me 
by Mr. Wickham as having been collected in eastern Nevada. 
The two species may be identified as follows : — 
Stout, depressed, the sides slightly arcuate in general form, pale brownish- 
testaceous throughout, the head and abdomen rather darker; head and 
prothorax smooth, shining and subimpunctate, becoming finely punctu- 
late and subscabrous broadly toward the sides, the elytra evenly, 
closely, minutely and asperately punctate; head much wider than long, 
somewhat transversely oval in form, the sides being parallel and broadly 
arcuate, the angles broadly rounded and the base transversely arcuate, 
the eyes moderately well developed, the sides and frontal regions 
bristling with a few black setae; antennae slender, as long as the head 
and prothorax in the male, shorter in the female; prothorax three-fifths 
wider than long, the sides just visibly converging from the very broadly 
rounded apical angles to the more obtuse but less rounded basal angles 
and nearly straight, distinctly wider than the head, the rounded contour 
of the apical angles having three or four long black bristling setae and 
the basal angles marked by another similar bristle; elytra much wider 
than long, slightly wider than the prothorax and about one-half 
longer, the sides strongly diverging and broadly arcuate from the 
rounded and scarcely at all exposed basal angles; apical margin con- 
jointly broadly and angularly sinuate, the side margins without trace of 
bristling setae; abdomen short and broad, as wide as the elytra, the 
segments short and broad with the side margins rather thick, having 
numerous long bristling setae toward tip. Length 4.0 mm.; width 
1.0 mm. Northern Illinois, Iowa (Iowa City) and Nebraska (West 
POINt) . ceeeesecccecccccsccccceccssce cece soecscccesvessslaticolle Csy. 
Stout but more parallel, moderately depressed, pale red-brown throughout, 
the head and abdomen somewhat more piceous; elytra and prothorax 
alutaceous, finely but strongly, extremely densely and evenly punctate 
throughout, the latter with only vestiges of a narrow smooth median 
line, the head more shining, more coarsely, deeply and less closely 
punctured but evenly so throughout, except a narrow smooth median 
line, the abdomen finely, densely punctulate as usual; head but little 
wider than long, the sides much longer than in Jaticolle and nearly 
straight, the angles less broadly rounded and the base moderately arcu- 
ate; antennae longer and relatively stouter, as long as the head and pro- 
thorax even in the female; prothorax only just visibly wider than the 
head, about a third wider than long, the sides subparallel and feebly 
arcuate, the apical angles right and scarcely or only very narrowly 
rounded, the basal more broadly so, the bristling setae subobsolete; 
elytra about as long as wide, slightly’ wider than the prothorax and 
three-fifths longer, the sides diverging from the base and nearly 
straight, the apex only feebly sinuate; abdominal setae toward tip 
short. Male unknown. Length 4.6 mm.; width 0.9 mm. Nevada 
(ELKO) + coscecccscccrccccevccsccscccsseccssces cove sess NOVAGiCUM 0. Sp. 
