234 H. C. FALL. 



ing. The Horn collection contains examples of the true punctula- 

 tum but evidently unrecognized, as they bear no name label. 



2. C vitiosum n. sp. — Brown, moderately elongate-oval, strongly convex ; 

 pubescence fine, not dense; form somewhat gibbous in profile and just visibly 

 narrowed posteriorly from the humeri. Coarser punctures fine and inconspicu- 

 ous on the head, numerous but not large at the sides of the prouotum, moderate 

 in size and number on the elytra, the latter without lateral striae. Metasternum 

 punctured from side to side. Eighth joint of antennae about two-fifths longer 

 than wide. Terminal joint of palpi elongate-parallel, the apex pointed but not 

 emarginate. Length 1.7-2 mm. 



Texas, San Diego and Brownsville. 



One example from the former locality sent by Mr. Chittenden 

 and one from the latter by Mr. Schaeffer. 



The entire absence of tibial grooves distinguishes this species 

 from all others known to me, except punctulatum, from which it 

 differs in the rather less robust form which is distinctly less gibbous 

 in profile, and its more slender terminal palpal joints, which are 

 moreover not at all notched or emarginate at apex. 



3. C. impressifrons n. sp. — Dark brown, robust, three-fifths as wide as 

 long, a little narrowed posteriorly, evidently gibbous in profile. Pubescence 

 short, not dense. Head with two coarsely punctured shallow foveas near the 

 eyes. Prothorax moderately coarsely punctate laterally ; the coarser punctures 

 of the elytra beginning at basal fourth or fifth, increasing somewhat in size 

 and number toward the apex, and showing a tendency to strial arrangement at 

 sides. Metasternum punctured at middle. Front tibiae bisulcate; middle tibiae 

 not sulcate. Length 4.1-4.25 mm. 



Hab. — Brownsville, Texas. Two examples collected by Mr. O. 

 Dietz and sent me by Mr. Schaeffer. 



The antenna? and palpi are not visible in either of the two exam- 

 ples. One of largest species and readily distinguished from all 

 others by the peculiarly sculptured front. Since writing the above 

 1 have seen a third specimen in the National Museum collection 

 labeled " Willis, Texas. In seed of tobacco ; issued July 28 " 



4. C. sectans Lee. — Blackish fuscous, scarcely more than half as wide as 

 long, evenly oblong, elliptical, not or scarcely gibbous in profile, very finely pu- 

 bescent. Coarser punctuation strong and conspicuous throughout, the punctures 

 as large and dense on the head as at the sides of the pronotum. There is a dis- 

 tinct tendency toward a serial arrangement on the elytra, the series more or less 

 evidently approximated by pairs, especially toward the sides; lateral striae lack- 

 ing. Metasternum one-half longer than the second ventral segment, punctured 

 nearly uniformly from side to side. Hind coxal plates strongly punctate. 

 Eighth antennal joint triangular, about one-half longer than wide. Front 

 tibiae bisulcate, middle tibiae not sulcate. Length 3-4 mm. 



