268 GEO. H. HORN, M. IJ. 



l)lace(l, intervals wider than tlie stria», slightly convex, each with a series of dis- 

 tant fine punctures, surface not alutaceous. Pody beneath piceous shining- 

 Prosternuni ])unctate, the side pieces smooth. Abdomen sparsely, indistinctly 

 punctate. Legs usually entirely pale rufo testaceous, the posterior femora some- 

 times slightly darker. Length .06 — .08 inch. ; 1.5 — 2 mm. 



Easily known by the transversely quadrate thorax, obliquely trun- 

 cate front angles, the pale antennas and legs. 



Occurs in Florida (Enterprise, New Smyrna, Biscayne Bay). 



2r>. C'. decipiens Lee -Oval, less convex, surface dark greenish bronze, 

 shining. Antennae riifotestaceous at base, the outer joints piceous. Head quite 

 shining, impunctate, not distin<;tly alutaceous. Thorax twice as wide as long, 

 anterior angles obliquely truncate, the sides behind the angulation feebly arcuate 

 and slightly narrowed to base, basal marginal line feebly distinct near the sides 

 only, surface rather shining at middle in front, alutaceous at the sides and base, 

 the punctuation fine and indistinct on the smoother space closer and deeper near 

 the sides and base. Elytra a little wider at ba.se than the thorax humeri rounded, 

 umbone feeble, the stripe moderately impre.ssed, the punctures relatively coarse, 

 closely placed and deep, the intervals slightly convex, rather narrower than the 

 strife, smooth, not alutaceous. Body beneath black, shining. Pro.sternum shin- 

 ing, not di.stinctly punctate, side pieces smooth. Abdomen nearly smooth. 

 Femora piceous, tibife and tarsi rufotestaceous. Length .06 inch.; 1.5 mm. 



This species resembles qimdrico/lis, but has the sides of thorax 

 more distinctly arcuate, the basal line feeble, abdomen smoother and 

 the antenn;^ and legs differently colored. 



Occurs in Kansas. 



Grovip XIV.— SYSTEN^. 



Antennae 11-jointed. Thorax without a distinctly impressed line. 

 Anterior coxal cavities closed behind. Ventral segments free. Pos- 

 terior Uh'vx faintly sulcate, these alone with a terminal spur. Claws 

 appendiculate. 



This group contains genera which have heretofore made i)art of 

 the Crepidodenie. While it is already difficult to sharply define the 

 groups into which the Halticini have been divided, part of the diffi- 

 culty in several instances has resulted from the association of hetero- 

 geneous material. To define a group as possessing an ante-basal 

 impression and include in it genera without it is unnatural, unscien- 

 tific and confusing. 



It is possible that Clamophora and Prasona should form part of 

 this group. In our fauna we have Sy.stena alone. 



