320 MEMOIRS ON THE COLEOPTERA 



parallel line and a smaller one near the suture, a sharply arcuate 

 transverse post-medial fascia, more or less expanding at the margin, 

 extending nubilously to the tip and a small discal spot near the apex, 

 the apices separately strongly and evenly rounded; femora strongly 

 clavate, the posterior less so, especially in the female, though very 

 evidently also in the latter; under surface pale, infumate narrowly 

 along the sides. Length (cf 9 ) 4.6-6.2 mm.; width 1.4-2.0 mm. 

 New York, Ohio, Ontario and District of Columbia. . . signatus Lee. 



Outline much narrower, smaller and even narrower than signatus, much 

 darker, black or nearly so, the under surface broadly pallescent 

 along the middle, the femora at base and the tibiae, except distally, 

 feebly picescent, the tarsi black, the first joint of the posterior (cf ) 

 scarcely so long as the remainder, shorter than in the preceding, 

 where it is paler and equal to the remainder, the prothorax (cf ) feebly 

 trapezoidal, much shorter than in the same sex of signatus, very 

 transverse, fully three-fourths wider than long, the strong oblique 

 spines at basal third; disk densely punctulate, not maculate; 

 elytra fully twice as long as wide, gradually feebly and arcuately 

 tapering behind to the apices, which are barely at all prolonged and 

 broader and more obtuse than in the preceding species and evenly 

 rounded; maculation very indistinct on the blackish ground, which 

 is loosely clothed with short fine dusky-cinereous hairs, of the same 

 style as in signatus but more developed; punctures similarly strong 

 but more evident; femora all clavate. Length (cf) 5.0 mm.; 

 width 1.5 mm. New York (Bluff Point, Lake Champlain). 



tenebrosus n. sp. 



9 Body very much shorter, relatively stouter and more convex than 

 in the preceding section, rufo-piceous, the ground of the elytra 

 densely covered with short cinereous vestiture, the maculation 

 pale brown, with certain points more blackish; antennae very long, 

 extremely tenuous; prothorax transverse, feebly trapezoidal, the 

 sides more rounding at apex than usual, the spine at basal fourth; 

 surface with two nubilous vittae expanding anteriorly; elytra only 

 three-fourths longer than wide, parallel, rounding rapidly behind, 

 finely, rather sparsely punctate, not densely on the flanks, which are 

 rather shallow and with very broadly obtuse line of flexure, the basal 

 spot large, quadrate, inclosing a small cinereous point and joining 

 the black humeri, the latter spot gradually evanescent along the 

 margin but adjoining an oblique discal series of three nubilous spots 

 at and near basal third, the inner near the suture; a sharply arcuate 

 more blackish fascia behind the middle expands externally but comes 

 far from reaching the margin and the oblique inner ramus is faint 

 and near the suture; behind this there are three oval faint spots 

 forming a subapical triangle; legs shorter than usual, the two an- 

 terior femora strongly clavate, the posterior slender, not clavate; 

 tibiae and tarsi much shorter, the basal joint of the posterior much 

 shorter than the remainder. Length (9) 4.2 mm.; width 1.5 mm. 

 Texas (Brownsville), Wickham celtis Schf. 



IO Form ( 9 ) notably short as in the preceding, blackish, the elytra a 



