532 Coleoplerological Notices, V. 



one-half as wide as tlie base ; scutellar lobe small, rather strongly rounded ; 

 basal angles acnte, moderately produced and somewhat detlexed. Scutelluni 

 small but distinct. Elytra not quite as long as wide, a little less than twice 

 as long as the prothorax, slightly wider from basal third to fourth than at 

 base ; sides evenly rounded ; oblique apex three-fourths of the maximum 

 width ; angles distinctly rounded ; sutural stria deep, the basal obsolete. 

 Mes-epimera very small, the suture obsolete ; met-episternal suture coarse, 

 feebly oblique, the episterna broad throughout. Post-coxal plate of the meta- 

 sternum very short, broadly rounded, bordered by a series of deep conspicuous 

 punctures extending outward along the anterior margin of the metasternum 

 almost to the parapleurae ; post-coxal plate of the first ventral extremely short. 

 Length 1.25 mm. ; width 0.8 mm. 



North Carolina (Asheville). 



Resembles the preceding very much, but differs conspicuously in 

 the forni and extent of the elevated plate behind the middle aceta- 

 bula, in the much less minute scutellum and smaller size. 



S. arkaiisana n. sp. — Narrowly oval, impunctate, highly polished, 

 black, the elytral apex not paler except from diaphaneity ; under surface 

 rufo-piceous ; antennse blackish, the first six joints and the legs throughout 

 testaceous. Head small, the eyes separated by a little less than twice their 

 widtli ; antennae slender, one-half as long as the body, third joint not twice 

 as long as wide and one-third as long as the fourth, the latter a little shorter 

 than the fifth but correspondingly longer tlian the sixth, seventh distinctly 

 wider and slightly longer than the fifth, eighth scarcely larger than the sixth, 

 last three joints moderately compressed. Prothorax three-fourths wider than 

 long, the apex arcuate and about one-half as wide as the base ; sides evenly 

 arcuate ; basal angles produced and acute ; median lobe distinct, rounded. 

 Scutellum distinct but small, perfectly equilateral. Elytra as long as wide, 

 twice as long as the prothorax and, at about basal fourth, a little wider ; sides 

 evenly arcuate ; apex three-fifths of the discal width ; outer angles moderately 

 rounded ; sutural stria extending only to the base, the basal stria obsolete. 

 Leys slender ; hind tarsi wanting in the type. Length 1.25 mm. ; width 

 0.75 mm. 



Arkansas. 



A sing'le specimen, kindly communicated by Mr. H. C. Fall. It 

 is closely allied to carolinse, but differs in certain well defined struc- 

 tural features referred to ia the table. 



S. pusilla Lee— Proc. Ac. Nat. Sci., Phila., 1860, p. 323. 



This species can always be recognized by its very minute size 

 and generally by the coloration, the elytra being rufous in apical 

 half; two specimens before me depart however in being pale testa- 

 ceous throughout, and two others in being black with the apex only 



