Coleopterological Notices, VI. 741 



Michigan. 



This species, which is represented b}- a single male, is closel}^ 

 a,llied to festinans, but ditters in its smaller prothorax which is 

 much more broadly margined at base, in its feebler and closer 

 elytral punctures and in the sexual characters. The anterior and 

 intermediate femora are distinctly arcuate toward apex, but the 

 trochanters are unmodified, the fifth ventral moderate in length, 

 rounded or feebly subtruncate at apex and unmodified on the 

 disk. The elytra completely lack the strong and conspicuous 

 subapical impressions near the suture which characterize the male 

 of festinans. 



10. S. tiiiiidil!^ n. sp. — Slightly stout, convex, shining and rufo-testa- 

 ceous throughout; pubescence of the head and pronotum very short, stiff, 

 strongly arcuate and not dense, intermingled on the latter with some long 

 tactile setae, on the elytra short, stiff and strongly arcuate, longer, straight and 

 finer near the suture, the short hairs extremely minute but very coarse, the 

 vestiture not dense and pale throughout. Head transverse, convex, not dis- 

 tinctly punctate, rectilinearly truncate and unimpressed at base, the angles 

 broadly rounded, the tempora becoming parallel just behind the eyes which 

 are rather small, convex and prominent, situated at much more than their 

 own length from the base; antennce somewhat longer than the head and pro- 

 thorax, slender, the three outer joints broader but not in the least darker in 

 color. Prothorax rather large, convex, only slightly narrower than the head, 

 not quite as long as wide, broadlj^ rounded and widest just before the middle, 

 the sides becoming strongly convergent and feebly sinuate toward base, the 

 latter strongly margined and not more than three-fourths as wide as the disk; 

 punctures fine and well separated, dense in the middle toward base. Elytra 

 scarcely more than two-thirds longer than wide, not distinctly more than 

 twice as wide as the prothorax, the sides parallel and very feebly arcuate, 

 rather narrowly rounded behind in apical third; humeri rounded, widely ex- 

 posed at base; scutellar impression and omoplates obsolete; punctures rather 

 small but deep, only moderately sparse. Abdomen somewhat shining, obso- 

 letely punctulate. Zeiy.s moderate in length, somewhat slender. Length 2.1 

 mm.; width 0.7 mm. 



Florida. 



The single male represents a species widely diflferent from any 

 other here described in its peculiar vestitui-e and subglobular pro- 

 thorax. The legs and trochanters are not perceptibly modified, 

 but the fifth ventral has a peculiar discal excavation ; the pos- 

 terior edge of the segment is quite evenly rounded, but thick 

 and deep vertically, and the large rounded impunctate pit at the 

 middle of the disk thins out the vertical posterior edge into a flat 



