166 WILLIAM G. DIKTZ, M.D. 



anteriorly, very broadly rounded on the sides, scarcely wider at middle than at 

 base, apex very broadly, though not strongly constricted, punctures apparently 

 not closely placed, entirely concealed by the large, oval scales, iuterniixed with 

 rather conspicuous seta, having the same color as the scales, the latter diverging 

 from the median line. Scutel very small, scaly. Elytra one-third wider at the 

 base than the prothorax, oblong, nearly twice as long as wide, sides nearly 

 straight, subparallel, for fully one-half their length, strise very fine, punctures 

 minute, remote, almost entirely concealed by the scaly vestiture; interstitial 

 setse of moderate length, prominent and not very evident. Prosternum moder- 

 ately long in front of the coxse, not deeply emarginate. Thighs moderately 

 clavate, tibise not slender, somewhat widened to the apex, apical hooks less evi- 

 dent than in the preceding species; claws connate near the base only. Length 

 2.5 mm.; 0.10 inch. 



Hab. — Arizona (Wickham). 



Two males and one female, Dr. Horn's and my own collection. 

 Quite distinct, more elongate with the sides less rounded than in 

 comicidatus. A female specimen in Dr. Horn's collection has quite 

 a large spot of white scales about the middle of the elytra. Deter- 

 mined for me by Capt. Casey. 



S. abiiormis n. sp. Sub-oval, robust, dark ferruginous, scaly vestiture 

 more dense on the upper surface, scales rather large, broadly oval, whitish, 

 scarcely variegated with pale yellow. Beak moderately stout, curved, as long as 

 head and prothorax, of equal thickness throughout, densely but finely punctured 

 with an indistinct, median, elevated line, sparsely squamose, basal tufts obsolete, 

 incision not deep, scrobes oblique. Antennse stout, inserted a little before the 

 middle, first joint of funicle robust, second not elongate, one-half longer than 

 the third, outer joints wider. Prothorax a trifle longer than wide, slightly nar- 

 rowed anteriorly, sides nearly straight behind the anterior third, subparallel, 

 scarcely wider at the middle than at the base, feebly rounded anteriorly and 

 broadly constricted at the tip, surface coarsely and rather closely punctured, 

 subcoiifluent behind the middle, scales not very closely placed, erect setse not 

 evident. Scutel elongate, triangular. Elytra two-fifths and rather suddenly 

 wider at the base than the prothorax and less than one-half longer than wide, 

 sub-ovate, a little wider behind the middle, with the sides nearly straight for 

 one-half their length, then rather suddenly narrowed to the apex, coarsely 

 .striate, stripe not concealed by the scales, punctures distinct, elongate, remote, 

 interstices slightly convex, with the scales intact, flat, when denuded, rugulose, 

 feebly shining, sette whitish, procumbent. Prosternum deeply emarginate, short 

 in front of the coxse ; femora very feebly clavate, tibise rather long, slightly 

 widened toward the apex, outer apical angle prominent; claws connate in their 

 basal third. Length 3.0 mm.; 0.12 inch. 



Hab. — New Mexico. 



A single male specimen in my collection. An isolated form, dif- 

 fering materially from all the preceding species of this group by its 

 ferruginous colors, form of thorax and the prominent outer apical 

 angle of the tibite. The above specimen is partially abraded. Very 

 closely related if not itlentical with the next species. 



