Casey — A Revision of the American Paederini. 117 
Elytral punctures distinctly, though somewhat unevenly, serial in arrange- 
ment throughout. Body similar in form and coloration to the pre- 
ceding but smaller in size and more coarsely and closely sculptured; 
head well developed, parallel at the sides, the angles very broadly 
rounded to the neck; eyes unusually small, at more than three times 
their own length from the base; punctures very coarse and close-set, 
becoming somewhat sparser on the vertex; antennae less stout than 
usual, very feebly incrassate distally, the medial joints equal in length 
to the subapical; prothorax narrow and strongly elongate-oval, much 
narrower than the head, coarsely and rather closely punctured; elytra 
much elongated, parallel, two-fifths wider and a third longer than the 
prothorax, very coarsely but not so closely punctate; abdomen slightly 
narrower than the elytra, less finely and rather closely punetate, 
somewhat shining. Male with a small oval glabrous pit on the median 
line at apex of the fifth ventral, the sixth with a small shallow, broadly 
rounded sinus at apex, the adjoining surface very feebly, triangularly 
impressed and wita short black spiculiform hairs as in the preceding 
species; female with the sixth ventral very broadly, obtusely rounded 
at tip. Length 6.7-7.5 mm.; width 1.05 mm. California (Hoopa 
Valley, — Humboldt Co.) ...- eee cece cece cccececcesseeess 2NOMA D. SD. 
5 — Head equal in width to the elytra. Body rather stout, parallel, convex, 
shining, pale testaceous in color throughout, the legs and antennae 
concolorous — probably immature; head well developed, the sides 
parallel, broadly, evenly rounded at base to the neck; eyes rather 
small, at more than three times their own length from the base; punc- 
tures notably coarse but well separated throughout; antennae not very 
stout, rather short, the median joints but little longer than wide in 
the female; prothorax oblong, slightly longer than wide, much narrower 
than the head, the sides parallel and straight in the middle, the angles 
broadly rounded, the anterior much more broadly than the posterior, 
the punctures similar to those of the head, coarse and rather widely 
separated, the median smooth line wide; elytra quadrate, parallel, 
barely as long as wide, equal in length to the prothorax and a third 
wider, the punctures very coarse, not close-set, arranged in rather 
uneven series throughout; abdomen parallel, fully as wide as the 
elytra, rather finely but not very closely punctate, shining. Male 
unknown; female with the sixth ventral broadly rounded at tip. 
_ Length 6.0mm.; width 1.0 mm. California (Lake Co.).validiceps n. sp. 
Head wider than the elytra; body more slender; elytra shorter than the 
prothurax except in subseriatia....... (hOGh SeRCReKe MADAM RON Rien abiccec: O 
6— Form moderately slender, dark rufo-piceous, the elytra and legs 
brighter rufous, the abdomen black, the antennae infuscate; head oval, 
somewhat longer than wide, parallel, the basal angles very broadly 
rounded to the neck; eyes rather small; antennae stout, distinctly 
incrassate distally, the medial joints about a third longer than wide, the 
punctures coarse and deep but well separated; prothorax narrow, 
elongate-oval, very much narrower than the head, the anterior angles 
very broadly rounded and wholly obsolete, the punctures coarse, deep 
and rather close-set; elytra parallel, slightly longer than wide, about a 
fifth wider than the prothorax and equal in length to the latter, the 
