CERAMBYCID^: 259 



head deeply and closely punctured; antennae (c? 1 ) moderately thick, 

 filiform, extending about to the middle of the body, coarsely, densely 

 sculptured, brown, black at base, the second joint two-thirds as long 

 as the third, which is slightly longer than the fourth, fifth one-half 

 longer .than the fourth but not thicker, tenth two-fifths longer than 

 wide, the last rather abruptly narrowed and rapidly pointed in nearly 

 apicalihalf ; prothorax two-fifths wider than long, slightly swollen at the 

 sides behind the middle, thence rapidly narrowing to the base which 

 is much narrower than the apex, unimpressed, rather strongly, 

 densely, vernacularly rugose, more finely medially; elytra about a 

 fourth wider than the prothorax, scarcely twice as long as wide, 

 parallel and straight at the sides, abruptly rounding and very obtuse 

 at apex, not very finely, extremely densely punctate, the raised lines 

 as in moestum; fifth ventral shorter than the fourth, rounded. Length 

 (c?) 9-5 mm.; width 3.0 mm. Massachusetts (Wellesley), Frost. 



amputatum n. sp. 



6 Color black or piceous-black throughout 7 



Color black, the elytra more or less pale brown 8 



7 Body rather stout and of somewhat larger size than any of the pre- 

 ceding, black, feebly shining; head similar but not quite so densely 

 punctate; antennae (9) black, gradually dark brown distally, mod- 

 erately slender and pubescent, extending to about basal fifth of the 

 elytra, the fifth joint much longer than the fourth or sixth, which 

 is rather longer than the seventh, tenth fully three-fourths longer 

 than wide; prothorax well developed though distinctly narrower 

 than the elytra, barely one-half wider than long, the sides subangu- 

 larly swollen well behind the middle; surface convex, with a rounded 

 central impression and two or four which are more lateral and some- 

 times obsolete; scutellum finely, densely punctate; elytra ample, 

 entirely covering the abdomen, parallel, arcuately narrowing in 

 nearly apical third, finely, very closely but not densely punctate, 

 the intervals generally subequally and feebly costuliform, shining- 

 under surface minutely, not closely punctate, with the hairs rather 

 longer, coarser and more distinct than usual. Length (cT, 9) 

 13.0-15.0 mm. ; width 4.2-5.0 mm. Washington State to Nevada 

 and Utah. [^4. atrum Esch., Bull. Mosc., II, p. 66].. .atrum Esch. 

 Body much smaller and more slender, rather strongly shining and very 

 deep black throughout; head more densely punctured medially; 

 antennae (9) unusually small, slender, but little longer than the 

 head and prothorax, black throughout, of the usual structure but 

 with the outer six joints less considerably shorter than the fifth 

 than in the preceding; prothorax rather less than one-half wider 

 than long, widest and strongly rounded at the sides at or very near 

 the middle, and not posterior thereto as in the preceding, feebly 

 impressed medially and with a very faint impression at each side of 

 the medial sufficiently evident, the granules unusually large and 

 conspicuous, the general surface polished; scutellum rounded, shin- 

 ing, finely and loosely punctate; elytra more than twice as long as 

 wide but exposing the very narrow and subtruncate last dorsal, not 

 wider than the prothorax, very minutely and closely but not densely 



