152 MEMOIRS ON THE COLEOPTERA 



16 Body oblong, the anterior parts much smaller relatively than in any 

 of the preceding, shining black, the upper surface with very obscure 

 bronzy lustre, the under surface rufo-piceaus, the legs ferruginous; 

 head fully three-fourths as wide as the prothorax, with very much 

 larger eyes than usual, they being also very convex and prominent; 

 antennae very slender, dusky-testaceous; palpi dusky, slender, very 

 finely acuminate at apex; prothorax short, fully two-thirds wider 

 than long, widest and with rather strongly rounded sides before the 

 middle; apex sinuato-truncate; base subtransverse, with the angles 

 very obtuse though scarcely at all rounded, only narrowly blunt 

 at their tips; surface rather finely but strongly re flexed but only 

 slightly diaphanously paler at the sides, the transverse impressions 

 very feeble though more or less evident, the stria excessively fine, 

 the foveae broadly diffuse and vague, barely at all impressed or 

 punctulate, the latero-basal region rather flat; elytra relatively large, 

 nearly one-half longer than wide and a third wider than the prothorax, 

 parallel, obtuse at tip, the striae very fine, the scutellar notably short 

 and feeble, the intervals flat; punctures of the series very fine, not 

 always accurately following the striae, the marginal and apical 

 punctulation almost obsolete; abdomen scarcely at all punctulate; 

 hind tarsi extremely slender though distinctly shorter than the tibiae, 

 the basal joint slightly shorter than the next three combined. Length 

 (9) 4.5-6.0 mm.; width 1.75-2.4 mm. Texas (Brownsville). Six 

 examples. The male would probably disclose some interesting 

 sexual characters fatuus Lee. 



Body rather less elongate, more strongly shining, black above, with 

 bright though dark and slightly greenish aeneous lustre, the under 

 surface, legs and epipleura dusky rufous; head not quite three-fourths 

 as wide as the prothorax, the eyes not so large as in fatuus though 

 well developed, the antennae very slender but not so long and black- 

 ish-piceous, with pale basal joint, the slender palpi blackish, with 

 feebly pale tip; prothorax somewhat as in fatuus but still a little 

 shorter, similarly strongly rounded at the sides and widest well 

 before the middle, but with more finely reflexed and concolorous 

 edges, the apex rather deeply sinuate, with prominent and barely 

 at all rounded angles, the basal angles very obtuse and rather blunt 

 though scarcely rounded; surface rather more convex, smooth and 

 completely impunctate, the foveae more deeply impressed, the surface 

 thence to the sides feebly convex and not flat; elytra not so elongate, 

 though more than two-fifths longer than wide, the striae very fine 

 and feebly impressed, the scutellar extremely short, the intervals 

 not quite flat, the marginal and apical punctulation obsolete; punc- 

 tures of the three series very much larger, more deeply impressed 

 and conspicuous; hind tarsi shorter though slender, the basal joint 

 not quite as long as the next three. Length (9) 5.0 mm.; width 

 2.1 mm. Florida (Biscayne Bay), Schwarz mustus n. sp. 



The remarkable abdominal sexual characters of the pedicularius 

 section, detailed above in describing riparius, do not seem to have 



