CERAMBYCID^E 353 



characters of the front, pronotal ornamentation and sterna they 

 are properly Cyllene and not allies of antennata: 



Cyllene snowi n. sp. Rather stout and convex, black, testaceous 

 under the fasciae of the elytra, black beneath, piceous posteriorly, the legs 

 and antennae red-brown; head with two strong, obliquely and anteriorly 

 converging carinse between the antennae, trifasciate with bright yellow, 

 having some scattered coarse punctures basally; antennae (9) about 

 three-fifths as long as the body, rather stout, the second joint somewhat 

 more than half as long as the third, which is equal to the fourth, both a 

 little shorter than the fifth, clothed with very short ashy hairs, which 

 distally become very dense, giving a silvery lustre; prothorax nearly one- 

 half wider than long, narrowed only very slightly from the obtuse angles 

 at the constriction to the apex, the sides but feebly, evenly arcuate; 

 surface finely and closely but clearly perforato-punctate throughout, 

 except in a small convex spot at the middle of the length near lateral 

 third, which is excessively minutely, closely punctulate, clothed through- 

 out with short cinereous hairs, except three transverse fasciae of bright 

 sulphur yellow, the apex not yellow; scutellum large, densely pubescent, 

 broadly subtriangular; elytra nearly a fourth wider than the prothorax 

 and more than three times as long, slightly tapering, obliquely truncate 

 at the apices, the angle obtuse, not at all dentiform ; surface with close-set 

 uneven sinuous bands, two near the base yellow, a broader one near basal 

 third ashy gray, then two finer and yellow, then a broad indefinite one 

 of ashy gray, the apices broadly yellowish, the depressed sutural region 

 almost solidly cinereous; under surface densely clothed with yellow and 

 cinereous hairs indefinitely blending; legs rather thick, closely, cine- 

 reously pubescent. Length (9) 17.0 mm.; width 5.6 mm. Arizona 

 (Oak Creek Canon elev. 6000 feet), F. H. Snow. 



This very fine species is wholly isolated and needs no further 

 comment. 



Cyllene zuniana n. sp. Much less stout and more parallel, nearly as 

 convex; head and prothorax deep black, the former nearly as in snowi, 

 except that the converging carinae are feeble and indefinite; antennae in 

 the type not quite three-fourths as long as the body, more slender but 

 otherwise of nearly similar structure, the second joint shorter, not one- 

 half as long as the third, the latter and succeeding joints with similar 

 very acutely subspiniform outer angles; prothorax nearly one-half wider 

 than long, widest and laterally subprominent at the middle, the sides 

 thence slightly converging and subsinuate posteriorly to the constriction 

 and much more converging and evenly arcuate anteriorly to the apex; 

 surface with rather small but perforate, tolerably close punctures, except 

 in two large convex spots as in snowi but larger and also broadly along 

 the median line basally and thence laterally along the summit of the 

 constriction, curving forward toward the isolated spots, these more convex 

 areas very minutely punctulate; surface clothed with short cinereous 

 hairs, crossed by three yellow fasciae, not entire as in snowi but narrowly 

 interrupted at the middle; elytra slightly wider than the prothorax, 



T. L. Casey, Mem. Col. Ill, March 1912. 



