248 Memoirs on the Coleoptera 



joints stout, the third and base of the fourth testaceous; prothorax 

 small, very little rounded at the sides, subsinuate before the basal 

 angles, but feebly sculptured; elytra feebly alutaceous; striae very 

 fine, the intervals subconvex; legs bright rufo-testaceous, the tarsi 

 blackish. Length 4.5 mm. Florida (Tampa). Characters quoted 



from the original description rhodopus Scz. 



Head and prothorax moderately shining, black, slightly bronzed, the 

 elytra black, with feebly subaeneous lustre, strongly shining; under 

 surface black, the epipleura piceous, the legs brownish-fiavate; head 

 rather elongate, barely as wide as the prothorax, the eyes moderate 

 in size and prominence, the tempora not very rapidly converging 

 to the neck; surface micro-reticulate, feebly rugulose, smoother 

 centrally; antennae distinctly more than half as long as the body, 

 not very slender, the third joint and base of the fourth testaceous; 

 prothorax small, one-half wider than long, parallel, the sides rather 

 feebly, subevenly arcuate and somewhat narrowly refiexed, feebly 

 sinuate at the rather sharp and subprominent basal angles; latero- 

 basal deplaniture narrower than usual; surface finely, sparsely 

 punctulate and subrugulose, the median line rather broadly im- 

 pressed; elytra two-fifths longer than wide, feebly inflated behind 

 the middle, nearly two and one-half times as wide as the prothorax; 

 striae not very fine, widely and rather deeply impressed, the intervals 

 distinctly convex; dorsal punctures rather small. Length 4.2 mm.; 



width 1.9 mm. District of Columbia tertiaria n. sp. 



20 — Elytral striae distinctly impressed 21 



Elytral striae very fine, not at all impressed 22 



21 — Antennae notably elongate, much more than half as long as the 

 body, shining, deep black, the pronotum subopaque; under surface 

 very shining, black, the epipleura piceous, the legs pale flavate, 

 with very slender blackish tarsi; head slightly elongate, equal in 

 width to the prothorax, the eyes very moderate in size and promi- 

 nence, the tempora rather long, the front nearly smooth, convex; 

 antennae black, the third joint and base of the fourth testaceous; 

 prothorax small, one-half wider than long, parallel, the sides very 

 moderately arcuate and very finely refiexed, gradually feebly and 

 broadly sinuate posteriorly, the angles sharp; latero-basal deplani- 

 ture abrupt and triangular; surface minutely and feebly punctulate, 

 the median stria fine, subentire; elytra a third longer than wide, 

 gradually arcuately inflated behind, much more than twice as wide 

 as the prothorax; striae rather fine, irregular, impressed, the intervals 

 evidently convex. Length 3.3 mm.; width 1.4 mm. Louisiana 



(Alexandria) ludoviciana n. sp. 



Antennae similarly slender and moderately compressed, but not quite so 

 long, only a little more than half as long as the body, the pale third 

 joint shorter; coloration nearly as in the preceding, the upper 

 surface more aeneous and the under surface and legs piceous; head 

 as wide as the prothorax, sometimes apparently a little wider, 

 rather elongate, rhomboidal, the eyes not large and moderately 

 prominent; surface nearly smooth; prothorax small, one-half wider 

 than long, nearly as in the preceding, less opaque, the latero-basal 



