CERAMBYCID/E 355 



Elytra with straight parallel sides; antennae longer, with numerous long 

 flying hairs beneath. (Subgen. Euthuorus Duval) 2 



Elytra inflated posteriorly; antennae not so long and with sparser flying 

 hairs beneath. (Spalacopsis in sp.) 3 



2 Linear, parallel, more feebly convex above, piceo-rufous, covered 

 extremely densely with a crust of cinereous pubescence concealing 

 all sculpture, except on certain parts of the elytra; antennae in both 

 sexes slightly longer than the body, very little longer in the male than 

 in the female, the scape extending to the base of the prothorax and 

 clothed with rather long brownish pubescence, which is so loose 

 above as to fully expose the integument, prothorax one-half longer 

 than wide, with a very broad medial and fine lateral indistinct vitta 

 of white, the lateral along the summit of a feeble ridge; having also, 

 at the centre of the disk, a deep foveiform puncture; elytra a fifth 

 wider than the prothorax, parallel, oblique near the apices very 

 feebly (cf ), more strongly (9 ), the apices obliquely arcuately trun- 

 cate from the external angles anteriorly to the suture and much 

 broader in the male; surface with one sutural and two discal cos- 

 tules, the intervals between which have the vestiture alternately 

 densely white and subdenuded, showing the sculpture, which is 

 in geminate series of rather strong and very close-set punctures; 

 outside the costules the convex surface descends more rapidly and 

 is rather densely pale brunneo-pubescent, partially concealing the 

 rows of punctures; apices concave. Length (cf 9) 10.0-10.5 mm.; 

 width 1.2-1.3 mm. Florida (Biscayne Bay), Schwarz. 



costulata n. sp. 



Linear but larger and stouter, similar to the preceding, except that the 

 vestiture is paler cinereous and more uniformly dense, the scape 

 longer and very densely clothed throughout, everywhere concealing 

 the integument, the prothorax less cylindrical, more narrowed at 

 apex and not quite one-half longer than wide, the central puncture 

 similar but with the vittae subobsolete, the disk transversely between 

 the upper of the lateral ridges perfectly flat, not feebly concave 

 along the middle as it is in costulata; elytra similar but flatter above 

 and with the ridges finer and almost obsolete, the alternating densely 

 pubescent and subglabrous areas the latter relatively much shorter 

 less distinct, the apices nearly similar; apical abdominal segments 

 (cf ) diminishing much more rapidly than in the preceding, the fifth 

 smaller, much less transverse and not extending so nearly to the 

 elytral apices, the two black discal points on each segment less 

 evident than in costulata. Length (cf ) 12.8 mm.; width 1.65 mm. 

 Florida (Palm Beach) scapalis n. sp. 



3 Form extremely slender; pubescence cinereous, the elytra variegated; 

 head behind the antennae shorter than the prothorax, with sparse non- 

 lineate vestiture; prothorax shorter in proportion to the width than 

 in the other species, piceous, with sparse non-lineate vestiture; 

 scutellum minute, white, triangular; elytra nearly as in suffusa, 

 the suture obscure white, the adjacent two rows of punctures brown 

 from denudation, the third row with short white lines; there are also 



