NORTH AMERICAN COLEOI'TERA. 145 



and very slijilitly narrowed ou the sides toward tlie base; surface rather closely 

 punctured, punctures moderate, rounded, not confluent, concealed by the scaly 

 covering; interspaces, when denuded, shining. Scutel subtriaugular, scaly. 

 Elytra two-fifths wider at the base than the prothorax, oblong, nearly twice as 

 long as wide; humeri prominent, rounded, sides straight for one-half their 

 length, tlieii broadly rounded to the apex; strife fine, but distinct, punctures 

 concealed by the scales, interspaces flat ; setse very short, procumbent, not at all 

 evident, the broad stripe of pale scales tapers from the base to the apex, margiu 

 irregular, disc sprinkled with spots of pale scales. Prosternnm rather long in 

 front of the coxte, broadly emarginate, antecoxal ridges distinct, postocular lobes 

 feeble. Legs moderate, thighs feebly clavate, tibia gradually widened toward 

 the apex, armature feeble: tarsi moderate, third joint not bri)a<lly bilobed, fourth 

 projecting more than the length of the preceding joint; claws small, connate 

 two-thirds length. Length 2.75 -:iO mm. ; 0.11—0.12 inch. Plate vii, fig. 13. 



Hah. — Nevada. Two males in Dr. Horn's collection. 



A very distinct form. In appearance, it vi'ry much resembles 

 perplexus, with which, indeed, I had considered it identical, however, 

 the larger size, much wider prothorax, and the presence of antecoxal 

 ridges, make the distinction easy. From spyrius, which it resembles 

 in the lateral vitta of the elytra, it is distinguished by its much 

 larger size, broader form and wider j)rothorax. 



S. spretiis n. sp.— Elongate-oval, black, legs and a vitta each side of elytra 

 rufous; scaly vestiture moderately dense, scales elongate-oval, black and daik 

 brown mottled with white above, fulvous or yellowish brown on the sides of the 

 elytra, on the underside smaller, rounded, grayish white. Beak rather stout, 

 cylindrical, feebly curved, about as long as head and prothorax in the male, a 

 trifle longer and tapering in the female ; densely punctured without scarcely any 

 lustre, substriate, rather densely .scaly near the base in the male, equally densely 

 scaly, but more slender and shining in apical half in the female; basal tufts 

 prominent, incision deep; scrobes scarcely obli(nio ; antennse inserted two-tifths 

 from the apex ( 'J, ), or a trifle before the middle ( J ), rather stout, second joint 

 of funicle a trifle longer than the third, outer joints slightly wider, club small, 

 densely pubescent. Head finely rugulose, front punctured, densely scaly. Pro- 

 thorax a trifle wider than long, a little narrower at the apex than at base, sides 

 rounded, broadly but feebly constricted at the apex, surface not closely punc- 

 tured, punctures rather small, rounded, interspaces scaicely shining, .scales not 

 crowded, deviating from the median line, directed transversely on the sides, a 

 narrow median vitta of white scales. Scutel rather large, squamose. Elytra 

 two-fifths wider at the base than the prothorax and about t'vice as long as wide, 

 sides straight ; subparallel for one-half their length, then gradually rounded to 

 the apex ; humeri prominent; strise. impressed, remotety punctured, more or less 

 concealed by the scaly vestiture; interstices flattened, setie brownish, procum- 

 bent, rather distinct, surface where deprived of scales shining, a broad rnfous 

 vitta commencing on the humerus and extending toward the suture behind the 

 middle and enclosing a triangular, dark basal space, more or less sharply limited 

 by a line of white scales and extending along the suture to the apex, the rufous 

 vitta is clothed with fulvous scales, the whole sprinkled with white scales; an- 



TEANS. AM. KNT. SOC. XXI. (19) MAY. 1894. 



