Casey — A Revision of the American Paederini. 173 
legs and antennae pale. Head distinctly wider than the prothorax 
in the female, the eyes only moderately developed and rather smaller 
than in the female of pallescens; prothorax relatively smaller, scarcely 
more than just visibly wider than long, subparallel and nearly straight 
_at the sides, the angles rounded; elytra relatively larger, somewhat 
longer than wide, fully a third wider and three-fifths longer than the 
prothorax, not paler in color than the latter; under surface of the head 
rather flat and somewhat strongly and closely punctate, the gular 
sutures fine, scarcely at all impressed, nearly straight and just visibly 
converging to a short distance from the base, the intersutural region 
paler in color. Length 4.0 mm.; width 0.72 mm. California (Sta. Cruz 
CO. )nide Sh4i bak Send deubin i pegs Ob dome dees ch astnans ----conforme 2. sp. 
21— Body slender, black, the anterior parts with a slight piceous tinge, 
scarcely at all paler on the elytra; head and prothorax polished, finely, 
sparsely punctate, the former rather wider than long, only slightly wider 
than the prothorax, parallel and nearly straight at the sides behind the 
unusually small eyes, the basal angles moderately broadly rounded; 
prothorax as long as wide, the apex oblique at each side of the neck, 
the apical angles broadly obtuse; elytra quadrate, almost one-half 
wider and longer than the prothorax; under surface of the head broadly 
convex, rather strongly but sparsely punctate, the gular sutures very 
fine, almost obliterated, wholly unimpressed and sensibly converging 
nearly to the base, where they are more narrowly separated than in any 
of the preceding species of this section. Median process of the fifth 
ventral very narrow but rather long, about a fourth as wide as the sinus, 
deeply sinuate at apex with its sides straight and nearly parallel and 
the angles acute; fimbriate sides of the segmental sinus long, very 
feebly curved, each with about ten or eleven unusually long black 
spinules. Length 3.5 mm.; width0.6mm. California (Sta. Clara Co.). 
gregale Csy. 
Body shorter and relatively less slender, the elytra scarcely picescent, the 
legs brown; surface shining, the abdomen dull; head very finely, not 
very densely punctured, as long as wide, evidently wider than the 
prothorax, the sides behind the rather small eyes parallel and broadly, 
distinctly arcuate, the basal angles broadly rounded; prothorax nearly 
as in the preceding but with the sides of the apex less oblique and more 
rounded and the obtuse apical angles more broadly rounded; elytra 
two-fifths wider and one-half longer than the prothorax, scarcely longer 
than wide; under surface of the head convex, polished, rather finely, 
sparsely punctate, the gular sutures fine, but slightly impressed, grad- 
ually and feebly converging nearly to the base almost as in gregale. 
Median process of the fifth ventral distinctly more than a third as 
wide as,the sinus, deeply and evenly sinuate at apex from side to side, 
its angles acutely rounded and less than right, its sides straight and 
diverging thence to the base; fimbriate sides very feebly curved; sur- 
face having some long bristles before the process at each side of the 
middle, nearly as in gregale. Length 3.2mm.; width0.6mm. Califor- 
nia (Sta. Cruz to San Francisco) ......+++++++++e+e+++--mimulum Csy. 
Body very slender, dark rufo-piceous in color, the elytra piceous, the legs 
paler; surface rather shining, finely, sparsely punctate, the elytra and 
