236 Memoirs on the Coleoptera 



larger. General form and coloration as in grandis; elytra shining, 

 the micro-reticulation fine and faint; head in form and relative 

 > size nearly similar, the large eyes very prominent; surface feebly 

 rugulose, smoother anteriorly; antennae long, very slender, similar 

 in coloration but with more elongate joints; prothorax relatively 

 larger, fully twice as wide as long, general outline and sculpture 

 nearly as in grandis, but with a smooth obtuse elevation extending 

 outwardly from the convex part not quite to the outer limit of the 

 broad lateral reflexion at base, and of which there is barely a trace 

 in grandis; elytra larger and more elongate, three-sevenths longer 

 than wide, four-fifths wider than the prothorax; striae finer but very 

 deeply impressed, not micro-punctulate; intervals strongly convex 

 except laterally, the two outer striae finer and more punctulate as 

 usual; reflexed edges not so diaphanous or pallescent as in grandis; 

 legs long, pale throughout. Length 10.5 mm.; width 4.8 mm. 



Lake Superior (Marquette), — Sherman magister n. sp. 



5 — Head and prothorax pale 6 



Head black, the prothorax pale 9 



6 — Body stouter in form, the coloration and general habitus almost 

 exactly as in grandis. Elytra of rather more greenish hue than in 

 grandis; head fully three-fourths as wide as the prothorax, finely 

 rugulose, the eyes large and very prominent; antennae long, about 

 half as long as the body, fusco-testaceous, the three basal joints 

 clearer; prothorax four-fifths wider than long, widest at the middle, 

 the sides much rounded and strongly converging anteriorly; surface 

 broadly reflexed at the sides, the convex discal parts finely, closely 

 rugose, the basal peduncle conspicuous, the transverse groove only 

 moderately deep, the median stria deep; elytra nearly a third longer 

 than wide, twice as wide as the prothorax, the outer limit of the 

 sinuate apical truncature rather narrowly rounded; striae deeply 

 impressed, fine, nearly smooth, the intervals moderately convex, 

 densely micro-reticulate; reflexed margins diaphanous and slightly 

 paler; under surface pale, the epipleura and abdomen piceous; tarsi 

 as pale as the tibiae. Length 8.5 mm.; width 4.0 mm. Texas. 



majuscula Chd. 



Body narrower, much less ventricose and smaller in size 7 



7 — Elytra with fine micro-punctulate striae and flat intervals, deep 

 indigo-blue and with the side margins finely reflexed and not in the 

 least paler in color. Under surface pale, the epipleura and abdomen 

 black, the former feebly picescent basally; legs pale, the tarsi a 

 little darker; head narrower than in grandis, with less prominent 

 eyes, the front very finely and feebly rugulose, nearly smooth medi- 

 ally; antennae almost half as long as the body, blackish, the three 

 basal joints and basal node of the fourth pale testaceous; prothorax 

 finely and feebly rugulose, three-fourths wider than long, more 

 evenly arcuate at the sides and less narrowed anteriorly than in 

 grandis, the margins only half as widely reflexed; basal peduncle 

 and transverse channel almost similar; scutellum similarly rufous; 

 elytra much narrower, almost one-half longer than wide, fully twice 

 as wide as the prothorax, the apical truncature sinuate, more oblique 



