PHALACRID/E 51 



series of punctures unusually distinct; abdomen micro-reticulate but 

 feebly so, polished. Length 2.0 mm.; width 1.2 mm. Arizona (near 

 the Grand Canon), Prudden decoloratus n. sp. 



Form broadly oblong-oval, strongly convex, polished, blackish-piceous 

 above, dark ferruginous beneath; head nearly half as wide as the 

 prothorax, minutely punctulate, the antennae of normal structure; 

 prothorax rather large, distinctly more than twice as wide as long, 

 the strongly converging sides moderately and evenly arcuate, the 

 basal bead feeble, rather broad, flat as usual; scutellum transversely 

 and obtusely ogival; elytra slightly elongate, two and a third times 

 as long as the prothorax, parallel in basal half, the apical half evenly 

 and almost circularly, very obtusely rounded; surface very smooth, 

 the flanks sometimes obliquely subrugulose, the punctured series 

 distinct; metasternal process only moderately wide. Length 2.2- 

 2.45 mm.; width 1.2-1.45 mm - Nevada (Ormsby Co.), C. F. 

 Baker and California (San Diego), Dunn. The San Diego speci- 

 mens have the serial punctures of the elytra rather finer as a rule. 



bakeri n. sp. 



14 Color piceous-brown. Body small, oblong-oval, parabolic behind, 

 very highly polished, the elytra without trace of minute sculpture 

 even at apex; under surface and legs pale brownish-yellow; head well 

 developed, distinctly more than half as wide as the prothorax, very 

 minutely punctulate; antennae of the usual form, the joints of the 

 club increasing rather rapidly in width, the second strongly trans- 

 verse, rather shorter than the first; prothorax much more than twice 

 as wide as long, the converging sides rather strongly, evenly arcuate, 

 the basal bead feebly marked; scutellum rather sharply ogival, 

 moderately transverse; elytra distinctly longer than wide, fully 

 two and one-half times as long as the prothorax, very smooth, the 

 series faintly visible under sufficient amplification; mesosternum 

 rather broadly visible at the sides of the metasternal processanteriorly. 

 Length 1.4-1.75 mm.; width 0.7-0.9 mm. Utah (southwestern 

 Weidt and Marysvale Wickham) utealis n. sp. 



Color black, rarely with a feeble piceous tinge, very highly polished, the 

 elytra similarly without fine sculpture at any point, the series of 

 punctures faintly visible 15 



15 Form elongate, only moderately stout; under surface and legs rather 

 dark ferruginous; head not quite half as wide as the prothorax, 

 minutely, sparsely punctulate, the antennae as usual, the joints of the 

 club rather rapidly and conspicuously increasing in width; prothorax 

 distinctly more than twice as wide as long, the converging sides rather 

 strongly arcuate, the basal bead subobsolete medially, visible only 

 for a short distance at each side thence outwardly; scutellum rather 

 sharply ogival, moderately transverse; elytra much longer than wide, 

 nearly three times as long as the prothorax, the sides arcuately and 

 gradually converging almost from the base, the combined apices 

 notably narrow; punctures of the series everywhere extremely 

 minute, the surface very smooth. Length 1.8-2.35 mm-; width 0.9 

 1.2 mm. New Mexico (Jemez Springs), Woodgate. callidus n. sp. 



Form much less elongate and more obtuse behind, oblong-oval, convex, 



