252 Trans. Ac. Sci. of St. Louis. 



slightly arcuate at the sides, truncate and not at all arcuate at base, 

 with narrowly rounded angles, the surface extremely sparsely and 

 minutely, obsoletely punctulate, strongly impressed on the median line 

 from tlie middle of the vertex to the front; antennae slightly longer 

 than the head and prothorax, moderately thick, but feebly incrassate 

 distally, the first three joints decreasing rapidly in length and thickness, 

 the outer joints moderately transverse, the eleventh about as long as 

 thejtwo preceding together, pointed; prothorax very slightly longer 

 than wide, somewhat shorter and very much narrower than the head, 

 feebly convex, with a very fine and feeble impression along the median 

 line almost from the apical margin to the base; sides anteriorly promi- 

 nently rounded, thence moderately converging and straight to the base, 

 which is fully three -fourths as wide as the disk; punctulation very 

 minute and even but rather closer and more asperate than that of the 

 head or elytra; scutellum flat, triangular, finely, sparsely, and evenly 

 asperulate, with a wide flat and sculptureless border throughout; elytra 

 quadrate, less than one- half wider and about two-fifths longer than 

 the prothorax, about as long as wide, the sides very feebly diverging 

 from base to apex and straight, the humeri scarcely rounded, angulate, 

 moderately exposed at base; punctulation very minute, rather sparse 

 and even throughout; abdomen much narrower than the elytra, widest 

 at the apex of the fifth segment, feebly narrowed thence to the base, 

 the sides straight, minutely, not very closely punctulate, the three im- 

 pressions subequal, fine, rather deep and impunctate; legs short, 

 rather slender. Length 1.35 mm.; width 0.3 mm. Florida. 



salcifrons Csy. 



This extremely minute species is probably very local in dis- 

 tribution and of peculiar habits, possibly subcortical. My 

 reference under the original description to a relationship with 

 Cardiola is erroneous and was based solely upon the absence 

 of an acute bead delimiting the hypomera. 



liissagria n. gen. 



The very wide abdomen and elytra, in contrast with the 

 comparatively narrow head and prothorax, gives to this genus 

 a peculiar habitus which can be recognized at once. The 

 detailed characters have been fully given in the table of genera 

 and little can be added at present, except to draw attention 

 to the marked homogeneity of the species, the general 

 color, polished lustre and elytral sculpture, as well as the 

 structure of the legs and antennae, varying scarcely at all 

 throughout. The elytral sculpture consists of extremely 

 minute,' sparse and scarcely visible punctulation, which, 



