NORTH AMERICAN COLICOPTKHA. 281 



little wider at base tlian tlie thorax, liuiaeri romuled, uuihone not promineiit, 

 a])i(',al antrle distinct, but ol)tuse, di,sc not very convex, tlie pnnctnatiou fine, but 

 very distinct, rather close about the scutellum, thence {gradually sparser to apex 

 and sides. Body beneath piceous. Abdomen sparsely punctate. Legs uniform 

 rufotestaceous. Lengtli .08 incli.; 2 mm. 



This species is readily known in tlie present sei'ies by its very dark 

 color and rather elongate form, resendiling in this respect a diminu- 

 tive Systena elongata. In the two specimens before me the umbones 

 are a little paler than the rest of the surface. 



Occurs in western Nevada (Morrison). 



7. li. ropainllis Lee — 01)lon<; oval; moderately <-onvex, pale j'ellowish 

 testaceous, shining. AutenniiB slightly darker externally, joints 2-3-4 gradually 

 longer. Head smooth, slightly rufescent. Thorax about one half wider than 

 long, not narrowed in front, sides feebly arcuate, the oblique truncation of the 

 anterior angles scarcely evident, base with extremely fine, hut entire marginal 

 line, disc moderately convex, the surface not punctate, but slightly irregular 

 near the base. Elytra wider at base than the thorax, huniiii rounded, umbone 

 , moderately prominent and smooth, sutui-al angle distinct, but obtuse, disc feebly 

 convex, the surface rather shining, the punctuation extremely fine, sparse and 

 obsolete, faintly visible near the base only. Body beneath and legs similar in 

 color to the upper surface, the postci'ior femora very slightly darker and nearly 

 smooth. Abdomen with extremely few, scattered, fine punctures. Length .0(>.5 — 

 .08 inch. ; 1..5 — 2 mm. 



A very inconspicuous species, which, however, could only be con- 

 founded with livens or vanus, both of which have the underside en- 

 tirely pale, but the surface very distinctly punctate. 



Occurs at Los Angeles and San Diego, California. 



S. li. livens IjCC. — Oblong oval, subdepressed, yellowish testaceous, or yel- 

 lowish white, surface ver.y shining. Antenni« faintly infuscate, the three basal 

 joints pale, joints 2-3-4 progressively longer. Head faintly rufescent, smooth. 

 Thorax about one-third wider than long, not narrowed in front, sides arcuate, 

 the anterior angles feebly obliquely truncate, a basal marginal line very feeble 

 and often indistinct, disc moderately convex, surface sparsely punctate, punctures 

 finer in front. Elytra wider at base than the thorax, humeri rounded, umbone 

 not prominent, sutural angle distinct, but obtu.se, disc sparsely, finely punctured 

 at basal half, smooth at apex and sides. Body beneath and posterior femora 

 slightly darker than the upperside. Abdomen distinctly, but sparsely punctate, 

 the first two segments smooth at the sides. Anterior and middle legs and poste- 

 rior tibise pale yellowish testaceous. Length .10 inch ; 2.5 mm. 



This species is known by its pale underside and legs, punctate 

 abdomen, very shining and finely punctate surface. 

 Occurs in California from Los Angeles to Fort Yuma. 



TEANS. .\M. ENT. SOC. XVI (36) JULY, 1889. 



