Coleopterological Notices, V. 313 



E. lireTicorilis. — Somewhat stout, convex, black ; legs and basal parts 

 of the antennae paler, dark rufous ; integuments polished, very minutely, 

 sparsely punctate, the elytra rather more strongly and closely so ; pubescence 

 moderate in length, sparse on the abdomen. Head fully as wide as the pro- 

 thorax, the neck two-fifths as wide as the width across the eyes, the latter 

 rather large, at rather more than their own length from the base ; antennae 

 short, the first joint slightly shorter than the second, the latter more than 

 twice as long as wide and distinctly longer than the third, which is obconical, 

 four to ten subequal in length but greatly increasing in width, the latter twice 

 as wide as the fourth and nearly twice as wide as long, eleventh as long as 

 the two preceding. Prothojux as long as wide, widest at two-fifths from tl)e 

 apex, where the sides are strongly rounded and rather prominent, thence 

 rapidly convergent to the neck and feebly convergent and very slightly sinuate 

 to the base, the latter very feebly arcuate ; disk strongly convex, even, with 

 a slight transverse impression near the base. Elytra large, quadrate, three- 

 fourths wider and nearly one-half longer than the prothorax, the sides parallel 

 and straight, convergent and rounded near the apex ; humeri rounded, promi- 

 nent and widely exposed ; disk strongly, broadly impressed on the suture 

 behind the scutellum. Abdomen moderate in length, at base three-fifths, and 

 at the apex of the third segment four fifths, as wide as the elytra ; segments 

 equal in length, the first three very strongly impressed and coarsely, densely 

 sculptured at base. Ze*/."; and tarsi normal. Length 2.0 mm. ; width 0.55 mm. 



California. 



The smallest species of the genus and decidedly aberrant, not 

 only in its shorter antennae but much broader neck and truncate 

 median parts of the base of the head. A single specimen. 



E. lacustris. — Slender, convex, dark rufo-piceous or paler, the last two 

 segments of the abdomen blackish ; legs pale rufo-testaceous ; antennse slightly 

 paler toward base ; punctures fine and well separated but strong and distinct, 

 more asperate on the elytra, finer and very sparse on the abdomen except in 

 tlie basal impressions, which are coarsely and closely sculptured as usual ; 

 pubescence rather long, subrecumbent, not very dense. Head as long as wide, 

 fully as wide as the prothorax, the neck slightly exceeding one-third of the 

 width at tlie eyes, the latter small, at much more than twice their length from 

 the base ; antennse long and slender, although distinctly incrassate, extending 

 nearly to the middle of the elytra, the first three joints elongate, subequal in 

 length, four to ten shorter, subequal in length, the first much longer than 

 wide, the latter very slightly transverse, eleventh gradually pointed toward 

 apex, barely as long as the two preceding. Prothorax fully as long as wide, 

 widest at two-fifths from the apex, where the sides are narrowly rounded, 

 thence rapidly convergent to the neck and feebly convergent, broadly and 

 distinctly sinuate to tlie base, the latter subtruncate, fully twice as wide as 

 the apex ; disk strongly, evenly convex, not impressed, the punctures more 

 densely crowded toward the median line as usual. Elytra one-half wider and 

 slightly longer than the prothorax, the sides parallel, nearly straight, con- 

 Annals N. Y. Acad. Sci., VII, Oct. 1893.-21 



