Casey — A Revision of the American Paederini. 85 



stiff black setae; female very nearly similar to the male, except the 

 sligiitly longer elytra with more diverging sides, the sixth ventral evenly 

 rounded and rather broadly lobed at tip. Length 6.5 mm. ; width 0.9 

 mm. California (Mendocino and Sta. Cruz Cos.)..fraiiciscanum n. sp. 



11 — Gular sutures moderately separated and strongly convergiog posteriorly 



to the base. Body elongate and rather slender, more depressed than in 

 the preceding species, parallel, dark and uniform piceous in color 

 throughout, the legs and antennae rufous; sui'f ace shining; punctuation 

 coarse, deep and sparse anteriorly, the smooth line of the pronotum 

 sometimes subobliterated anteriorly and with its surface more or less 

 uneven toward base; head suboval, fully as long as wide, the sides 

 parallel and feebly arcuate, the angles broadly rounded to the neck; 

 prothorax slightly elongate, a little wider than the head, parallel, the 

 sides feebly arcuate, the angles rather distinct; elytra small and de- 

 pressed, not quite as long as wide, distinctly shorter than the prothorax, 

 somewhat wider than the latter at base and distinctly so at apex, the 

 diverging sides nearly straight, the basal angles distinct, the punctures 

 not very coarse, very sparse and confused ; abdomen parallel, as wide 

 as the elytral apex, the punctures minute and rather dense. Male un- 

 known; female with the sixth ventral narrowly and strongly lobed at tip, 

 the lobe narrowly rounded, the surface feebly and narrowly impressed 

 along the middle. Length 7.5 mm.; width 1.1 mm. New Hampshire. 



picescens n. sp, 

 Gular sutures widely separated, straight and parallel to the base 12 



12 — Elytra very much shorter than the prothorax, with the straight sides 



strongly diverging from base to apex and the surface rather depressed. 

 Body elongate, only moderately stout, shining, black throughout, the 

 legs and antennae rufous; punctures coarse and sparse anteriorly, 

 those of the elytra notably flue, very sparse and confused, of the abdo- 

 men minute and dense; head longer than wide, the sides parallel and 

 nearly straight for a long distance, the basal angles only moderately 

 broadly rounded; prothorax wider than the head, distinctly elongate, 

 parallel, the sides broadly, feebly arcuate, the angles rather distinct, the 

 broad median smooth area even, generally slightly impressed along the 

 median line toward base; elytra at base as wide as the prothorax or 

 slightly wider, at apex very distinctly wider, about as long as wide, 

 strongly and angularly eraarginate at tip; abdomen parallel, scarcely 

 as wide as the elytral apex. Male unknown; female with the sixth 

 ventral strongly and rather narrowly lobed at tip, the apex of the lobe 

 rather broadly rounded, the surface feebly impressed or flattened in the 

 middle toward tip. Length 7.8 mm.; width 1.0 mm. Wisconsin (Bay- 

 field), Montana (Kalispell), and Idaho (Coeur d'Aleoe), — Mr. Wick - 



ham loogiventre n, sp. 



Elytra not so greatly abbreviated and rather less strongly tmarginate at 

 apex, with the sides subparallel and the surface less depressed 13 



13 — Body rather stout, subparallel, deep black throughout, the legs and 



antennae dark picea-rufous; punctures of the head and pronotum deep 

 and distinct, sparse but only moderately coarse, of the elytra fine, uj-arse 

 and confused, of the abdomen minute and close-set as in longiventre; 

 head slightly elongate, the sides parallel and straight for only half the 



