292 Trans. Acad. Sci. of St. Louis. 



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

 with four or six subequal, subequidistant, aud elongate asperities near 

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

 long, slendar and aciculata 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. Length 1.4 mm.; 

 widch 0.G5 mm. Utah (Provo),— H. F. Wickham .ateauan. sp. 



Form nearly similar but more parallel, with wiler he id 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 dirk flivo-testaceoas, infumate toward the apical angles exter- 

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

 ally paler and dark though clear ruf j-testaceous in about basal half, the 

 legs pale; upper surface distinctly mlcro-rellculate throughout, the 

 elytra most coarsely and faeb'.yso; head feebly and sparsely punctulate 

 laterally, the anten-iae rather strongly incrassate dlstally, with the outer 

 joints distinctly traasverse; prothorax scarcely visibly wider than the 

 head, 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 rounded, the four post-median punctures alone distinct; elytra 

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

 than in uteana, fl lely puactate externally and aplcally, sublmpuuctate 

 elsewhere, the flue panctulas very sparse but aggregated into a narrow 

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

 subparallel, slightly narrower than the elytra. Male unkaow a; female 

 with the sixth tergite rounded behind. Length 1.5 ram.; width 0.6i 

 mm. Wisconsin (Bayflald) , — H. F. Wickham gaadens n. sp. 



Form stouter and less parallel, nearly as in 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 distinctly transverse, the tenth 

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

 eleventh fully as ion? as the preceding two combined; prothorax two- 

 flfths wider than long, distinctly wider than the head, the sides broadly 

 rounded anteriorly, thence just visibly converging and stralghter to th« 

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

 median punctures strong ; elytra two-flf ohs 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- 



