LeConte.] 618 [April 18, 
the much more finely and sparsely punctured head and pro- 
thorax. 
52. Mycetochares analis. Elongate, black, shining, pubescent. 
Antenne brown, slender, one-half as long as the body. Head and pro- 
thorax strongly rather densely punctured, the latter twice as wide aslong, 
narrowed in front, rounded on the sides, which are not explanate ; base 
scarcely impressed, indistinctly margined near the hind angles. Elytra 
very little wider than the prothorax, punctured, striz punctured, slightly 
impressed, nearly obliterated at the sides and behind. Beneath finely 
punctured, dull ferruginous, 4th and 5th ventral segments dark piceous. 
Front cox contiguous. Length 7.5 mm.; .30 inch. 
Detroit; one specimen. Of the same size, form and sculp- 
ture as IM. binotata, but differing by the absence of the hu- 
meral spot, and the different color of the antennee, legs and 
under surface. 
53. Mycetochares lugubris. More elongate, black, shining, pu- 
bescent. Antenne dark brown, rather stout, one half as long as the body. 
Head and prothorax strongly punctured, the latter twice as wide as long, 
sides rounded, especially in front, side margin narrowly but strongly ex- 
planate behind the middle, depression extending some distance along the 
base, which is indistinctly margined ; there are three vague shallow basal 
impressions. Elytra a little wider than the prothorax, punctured, striae 
rather strongly impressed. Beneath shining, sparsely finely punctured. 
Legs piceous. Front coxze contiguous. Length 6.4 mm.; .25 inch. 
Detroit ; one specimen. A similar one collected in Kan- 
sas by Prof. Snow, is slightly immature ; the color is brown, 
with the base of the antennze and legs testaceous. 
54. Mycetochares margimata. Elongate, of the same form as 
M. binotata but smaller, black, shining, pubescent. Antenne rather stout, 
black. Head and prothorax strongly rather densely: punctured ; the latter 
twice as wide as long, much rounded on the sides, especially in front, 
sides behind the middle narrowly but strongly flattened ; base with three 
very faint shallow impressions. Elytra very little wider than the pro- 
thorax, punctured, striz punctured, scarcely impressed, marked with a red 
humeral rounded spot. Beneath shining, sparsely punctulate, tarsi pi- 
ceous ; front coxe contiguous. Length 5.2 mm.; .21 inch. 
Marquette, Lake Superior ; one specimen. 
55. Mycetochares longuia. More elongate, of the same form and 
size as W. gracilis, black, shining, pubescent. Antenne stout, black, half 
as long as the body. Head and prothorax strongly, somewhat rugosely 
punctured, the latter about one-half wider than long, narrowed in front, 
rounded on the sides, which are not explanate, with three faint shallow basal 
