THE CANADIA.N ENTOMOLOGIST. 411 



reddish, each with two very large subeqiial isohited black spots, one just 

 before, the other well behind, the middle, the punctures fine, sparse and 

 inconspicuous ; legs pale, the femora piceous ; claws as in marginipemiis. 

 Length, 3.0 mm.; width, 2.6 mm. ^Missouri, 



Allied to viarginipennis, but of broader outline, finer punctuation 

 and with the anterior and posterior black areas of each elytron subequal in 

 size and wholly isolated. It resembles latiuscuhis in form more closely, 

 and may, for the present, be considered a subspecies of the latter, which 

 is specifically different from marginipeimis in its much more broadly 

 rounded outline. 



E. Monnonicus, n. sp. — Very broadly rounded, strongly convex, 

 highly polished, virtually completely impunctate, deep black throughout ; 

 tarsal claws well developed, moderately and ahiiost evenly arcuate, with a 

 distinctly defined rectangular basal tooth within. Length, 3.2-4.0 mm.; 

 width, 2.8-3.5 "^i^^' Utah (Marysvale), Wickham. 



E. Townsendi, n. sp. — Smaller, much more elongate-oval in form, 

 very convex, polished, deep black throughout, virtually impunctate, the 

 elytra vertically declivous to the lateral bead, which is finer than in 

 Mormonicus and cethiops\ in which species also the elytra become evidently 

 subexplanate along the sides, especially anteriorly ; claws nearly similar, 

 with an even more distinct acute rectangular tooth. Length, 2. 8-30 mm.; 

 width, 2.2 mm. Mexico (Colonia Garcia, Chihuahua), Townsend. 



Mormonicus is larger, very much more nearly circular and more 

 polished than ce.thiops, Bland, and has the elytra practically impunc- 

 tate even near the thick lateral bead, where numerous distinct punctures are 

 observable in the latter ; the prothorax is also larger and more especially 

 of a different shape, being more elongate along the median line. Besides 

 differing as stated in the description, Townsendi is of more narrowly oval 

 form than the feebly alutaceous cp.thiops, and has the front distinctly more 

 advanced before the line of the eyes. Both of these forms are species 

 distinct from cethiops. 



E. parvicollis, n. sp.— Very broadly rounded, convex, polished, 

 virtually impunctate, black, the anterior thoracic angles not paler ; elytra 

 black, with a broad parallel lateral rufous area from the humeri, obliquely 

 narrowed just before the middle, and extending thence narrowly and 

 more nubilously for a short distance further, also extending along the basal 

 margin, and sometimes with a slight posterior angulation, almost to the 

 scutellum ; also with a subangulate subapical discal pale spot; under 



