92 Trans. Acad. Sci. of St. Louis. 



from the base, where it is nearly as wide as the elytra, to the apex, 

 where it has gradually become narrower; head parallel, very coarsely 

 and remotely punctate; prothorax as long as wide, equal in width to 

 the head, the punctures rather large, sparse and irregularly disposed, 

 except single series along the median smooth line; elytra just visibly 

 wider thau the prothoraxand distinctly longer, nearly as long as wide, the 

 punctures not fine, rather sparse and partially arranged in series almost 

 throughout; abdomen finely and sparsely punctulate. Male unknown. 

 Length 6.4 mm.; width 1.1 mm. Florida parcuin Lee. 



Form rather stout, parallel; head large, wider than prothorax, parallel, not 

 very coarsely but deeply, rather closely punctate, the antennae thick, 

 subraoniliform, almost as long as the head and prothorax, the latter 

 about a fifth longer than wide, distinctly narrower and a little shorter 

 than the elytra, the sides feebly convergent and nearly straight from 

 apex to base, the punctures small, feeble, rather close-set and irregu- 

 larly arranged throughout, with a wide median impunctate line; elytra 

 somewhat longer than wide, the punctures fine, feeble, sparse and con- 

 fused; abdomen very finely, rather densely punctulate; legs pale. Male 

 with the fifth and sixth ventrals wholly unmodified on the disk, the 

 apex of former very broadly, angularly emarginate, the latter somewhat 

 more deeply and angularly emarginate, both throughout the entire 

 width, the latter emargination apparently about six times as wide as 

 deep. Length 8.0 mm.; width 1.25 mm. Louisiana pedale Lee. 



Form slender but convex; sides of the head slightly converging behind the 

 eyes, the basal angles broadly rounded, the punctures very fine, feeble 

 and remotely scattered; antennae slender, distinctly longer than the 

 head and prothorax, the latter wider than the head, just visibly longer 

 than wide, convex, parallel, finely, very feebly, indistinctly, sparsely 

 and irregularly punctate; elytra not wider than the prothorax and dis- 

 tinctly shorter, quadrate, feebly, sparsely and irregularly punctate: 

 abdomen darker in color, finely and extremely densely punctulate, dull 

 in lustre. Male having a rounded discal impression in apical half of 

 the fifth ventral, the apical margin not modified, the sixth segment 

 with a small acutely cuspidiform emargination at tip, the surface not 

 modified. Length 4.5 mm.; width 0.7 mm. Michigan bieolor Lee. 



The narrowing of the head behind the eyes in seriatum, 

 the peculiar coloration of parcum and the sexual characters 

 of pedale and bieolor, make any definite generic assignment 

 of these species impossible in the absence of the types ; it is 

 hoped, however, that enough characters are given to allow 

 of identification in case they should be rediscovered. Bieolor 

 is a preoccupied name in Lobrathium, but the sculpture of 

 the body is very unlike that prevailing in Key's genus, where 

 the punctures are especially coarse and close-set throughout 

 in all the species known to me ; so the name should stand. 



