Coleopterological Notices. 345 



toward the sides. Metastcrnum between coxa and groove slightly longer than 

 the first ventral segment; wings well developed. Length 4. 7-"). 3 mm.; 

 width 2.1-2.3 mm. 



Texas (El Paso); Arizona. 



This species, which is represented before me by an ample series, 

 is one of the smallest of the genus and is remarkable for its verv 

 convex, sin (cylindrical form and dense punctuation. It differs from 

 sodalis, to which it is allied, in its much smaller size and narrower 

 form, larger head which is more strongly narrowed from base to 

 apex, in its denser duller and darker integuments, and prominent 

 thoracic angles. The median lobe of the front is narrower and the 

 lateral lobes much broader than in sodalis. 



In these small species the basal bead of the pronotum and its 

 corresponding line groove are more pronounced than in the others. 



Ell. serratlim Lee. — New Spec. Col., 1866, p. 106. — Elongate-oval, very 

 strongly convex, pale brownish-testaceous throughout, polished. Head moder- 

 ately narrowed from base to apex ; sides straight ; median lobe of apex slightly 

 produced, truncate ; lateral eniarginations distinct ; eyes large and slightly 

 prominent ; antennae long and very slender ; surface finely and rather sparsely 

 punctate. Prothorax about two-thirds wider than the head and twice as wide 

 as long; apex considerably narrower than the base, evenly and distinctly 

 emarginate in circular arc, the angles obtuse, not at all rounded but not very 

 prominent ; base transverse, very feebly lobed in the middle, the basal angles 

 extremely obtuse and rather blunt; sides strongly arcuate, straighter and 

 more convergent toward apex ; disk much wider behind the middle than at 

 base, with obsolete traces of a fine elevated median line and a small foveiform 

 impression just before the scutellum, rather coarsely but feebly and roughly 

 punctate laterally, the punctures slightly separated, finer and decidedly 

 sparse toward the middle ; lateral edges finely but distinctly serrulate and 

 with short erect seta?. Elytra slightly wider than the prothorax and rather 

 less than four times as long ; humeri but slightly exposed, rounded ; apex 

 parabolically rounded; sides feebly arcuate; disk with rather well defined, 

 unimpressed, approximate rows of punctures, the latter becoming finer, sparser 

 and more diffused toward the suture; punctures distant throughout in the 

 rows. Metasternum between coxa and groove about one-fourth longer than 

 the first ventral segment. Legs very slender throughout, the posterior tarsi 

 subequal in length to the tibia?. Length 4.4-5.0 mm.; width 2.0-2.2 mm. 



Arizona (Gila Valley); Texas (El Paso). 



As usual throughout this section of the genus the anterior tibiae 

 are finely serrato-crenulate externally. One specimen in the cabinet 

 of Dr. LeConte, marked "Atlanta, Idaho," and probably collected 

 by Mr. L. Allgewahr, indicates a very exceptional range for this 



