156 CASEY 



above, deep metallic magenta with feeble medial aeneous reflection 

 beneath; head not very coarsely, densely and unevenly punctato-rugose, 

 with an uneven transverse callous band between the eyes and two un- 

 even basal callous areas, the eyes moderately prominent, pale in the 

 type; prothorax four- fifths wider than long, the sides strongly and sub- 

 evenly arcuate, becoming about parallel for only a very short distance at 

 base, widest slightly before the middle, the sulcus broadly concave, closely 

 punctate and with a small central callus, the surface from the ridges to the 

 sides very uneven, densely punctate and rugose, strongly impressed behind 

 the middle, the exterior callous line broadly interrupted, the lateral ridge 

 from the basal angles to the middle strong; scutellum whitish and coria- 

 ceous in the type, transverse, semicircularly rounded behind ; elytra barely 

 at all wider than the prothorax, four-fifthslongerthanwide, parallel, the 

 sides gradually rounding and feebly oblique in posterior two-fifths, 

 becoming scarcely at all sinuate toward the narrow apices, which are 

 truncate with rounded angles, their discal carina not extending to the 

 tip; surface not coarsely, very densely punctured laterally, sparsely 

 so and in clusters suturally, with even series throughout the width of 

 very large perforate punctures, which are not at all connected in the 

 series by any kind of a stria; elevated spots few in number, small and 

 with very irregular outline; under surface (c?) strongly punctato- 

 rugulose, the presternum broad and flat, very densely, coarsely punc- 

 tured, the metasternum broadly concave and also densely punctured, 

 the first ventral simply broadly flattened medially, the middle tibiae 

 unmodified, the fifth ventral with a shallow, broadly sinuate apical 

 emargination, the angles acute. Length 15.0 mm.; width 5.5 mm. 

 Lake Superior (Whitefish Point) morio n. sp. 



6 — Form oblong, attenuate behind, moderately convex, not very stout, being 

 somewhat as in ptmctulata in general form and sculpture; head densely 

 and confusedly punctate, with a very irregular band of low callus be- 

 tween the eyes, the latter rather small and scarcely at all prominent; 

 prothorax three-fourths wider than long, the sides evenly rounded and 

 inflated anteriorly, becoming nearly straight and parallel in almost 

 basal third; surface with the median ridges very narrow, strong, the 

 inclosed sulcus deep, punctate, with a smaU central callus, the surface 

 thence laterally very densely and confusedly but shallowly punctate, 

 deeply impressed behind the middle interrupting the narrow line of 

 caUus, the submarginal ridge evident but very irregular ; scutellum black, 

 dull, transverse; elytra quite obviously wider than the prothorax, 

 twice as long as wide, the parallel sides rather rapidly rounding and 

 thence moderately oblique, becoming very broadly but distinctly sinuate 

 to the narrowly and evidently prolonged apices, which are narrow and 

 rounded at tip; surface punctured nearly as in morio and with series 

 of perforate coarse punctures, which are however smaller and more 

 compressed and only very obvious suturally, the raised spots more 

 numerous and very irregular, mostly elongate and coarsely crenated 

 at their sides by the punctures; under surface (?) rugulosely punc- 

 tate, the densely punctate presternum flat, the fifth ventral gradually 

 and acutely attenuate, with the apex very narrowly, subangularly 



