292 Trans. Acad. Set. of St. Louis. 



ately narrowei from base to apex, nearly as wide as the elytra. Male 

 with four or six subequal, subequidistaat, and elongate asperities near 

 the apex of the fifth tergite in almost median half, the sixth with two 

 long, slender and aciculate porrect processes at tip, separated by half 

 the width, the processes gradually and feebly curved inwardly and to 

 some extent upwardly toward apex, the inclosed sinus feebly curved, 

 with an extremely feeble obtuse cusp at the middle; fine and dense 

 asperities of the seventh tergite parted along the median line by a feebly 

 impressed glabrous channel; female not at hand. Lenguh 1.4 mm.; 

 width 0. 05 mm. Utah (Provo),— H. F. Wiekhara nteanan. sp. 



Form nearly similar but more parallel, with wider heid and relatively nar- 

 rower hind body; coloration dark, the head blackish, the prothorax but 

 slightly less dark, the antennae blackish-piceous, flavate toward base; 

 elytra dark flivo-testaceoas, infumit^ toward the apical angles exter- 

 nally, the abdomen black, with the tip not very obviously paler, gradu- 

 ally paler and dark though clear rufo-testaceous iu about basal half, the 

 legs pale; upper surfice distinctly micro-reticulate throughout, the 

 elytra m^st coarsely aid feebly so; head feebly and sparsely punctulate 

 laterally, the antennae rather strongly incrassate distally, with the outer 

 joints distinctly traosverse; prothorax scarcely visibly wider than the 

 bead, less transverse than in uteana, about one-half wider than long, 

 the sides parallel and not obviously converging posteriorly, feebly 

 rounded, more strongly at apex, the base arcuate, the angles rather dis- 

 tinct but rounJed, the four past-median punctures alone distinct; elytra 

 two-fifths wider and oae-half longer than the prothorax, less transverse 

 thin in iiteana, fl lely puactate externally and apically, subimpuactate 

 elsewhere, the fioe puactules very sparse but aggregated into a narrow 

 irregular series parallel and very close to each sutural bead; abdomen 

 Bubparallel, slightly narrower than the elytra. Male vrnkno-w a; female 

 with the sixth tergite rounded behind. Length 1.5 mm.; width 0.68 

 mm. Wisconsin (Bayfield),— H. F. Wickham gandens n. sp. 



Form stouter and less parallel, nearly as iu uteana, convex; color dark, 

 nearly as in uteana throughout, the entire upper surface almost simi- 

 larly reticulate; head deep black, with a very few sparsely scattered 

 coarse punctures at each side of the front; antennae short, strongly in- 

 crassate near the tip, the outer joints distiuctly transverse, the tenth 

 much longer as well as wider than the ninth and less transverse, the 

 eleventh fully as lon^ as the preceding two combined; prothorax two- 

 fifths wider than long, distinctly wider thaa the head, the sides broadly 

 rouaded anteriorly, thence just visibly converging and straighter to th« 

 base, the base arcuate and narrowly refiexed as usual, the four post- 

 median punctures strong ; elytra two-fifths wider and one-half longer than 

 the prothorax, punctured nearly as in gaudens, the humeri widely exposed 

 at base; abdomen at base distinctly narrower than the elytra, thence 

 arcuately tapering to the tip. Male with two small oblique elliptical and 

 smoothly rounded, though slightly elevated tubercles, near the apex of 

 the fifth tergite and narrowly separated, with two more elongate and 

 feeble asperities external thereto, the sixth with two acutely pointed, 

 rather long porrect processes at tip, gradually curved slightly inward, 

 finely carinate externally and separated by half the total width, the in- 



