644 Coleopterological Notices, VI. 



by a fine line; disk iiiimitcly, very densely punctate, and densely clothed with 

 minute closely dfcunihent jjiibescence. Elytra strongly, transversely im- 

 pressed near the base, distinctly dilated behind, rather more than twice as 

 wide as the prothorax, not quite twice as long as wide, and not longer than the 

 heiid and prothorax together, dull, densely, extremely minutely and almost 

 invisibly punctate, densely clothed Avith very minute, closely decumbent, dark 

 ^ay and inconspicuous pubescence, coarser and brown in a transverse fascia at 

 basiil two-fifths, inunediately before which there is a transverse fascia of 

 longer, less decumbent, coarser silvery pubescence; apex broadly, obtusely 

 rounded. Under surface and legs minutely and densely pubescent, the latter 

 relatively rather long. Length 2. 'A mm.; width 0.55 mm. 



'Florida (Htiw Creek). Hubbard and Schwarz. 



The erect, widely dispersed setae of the upper surlace are short 

 throughout, but those of the bristling fringe along the lateral 

 €dges of the mesosternum, visible from above, are very long and 

 €onspicuous. Sexual characters are not apparent in the single 

 ■specimen before me. 



FORIHIC ILLA Leo. 



The very small polished and sparsel}' setose species, for which 

 this genus was erected by LeConte (Ann. TjVC. Nat. Hist., 

 N. Y., Y, p. 1-^2), certainly cannot be associated with the large 

 forms of totally- different habitus, which include the types of 

 Formicomus Laf., nor can the}' be placed with Anthicus, as sub- 

 sequentl}- suggested by LeConte (Proc. Acad. Nat. Sci., Fhila., 

 1852, p. 94), because of the remarkable structure of the meso- 

 sternum. The onl}- course left, therefore, is to regard them as 

 •constituting a distinct genus. 



The anterior coxal cavities are closed behind b}- an extension 

 of their corneous floor, and, in scitula, the median line of the floor 

 is produced behind in a slender cusp-point which, however, does 

 not project posteriorly further than the lateral lobes, from each of 

 which it is separated b^- a small deep rounded emargination. The 

 fourth palpal joint is only moderately large, triangular and ob- 

 liquely truncate. 



The species are confined to the extreme south of the United 

 States, from the Atlantic to the Pacific, extending also into 

 Mexico, but the approximate southern limits of range are not at 

 present deterniinal)le. 



Our four species may be known as follows : — 



