76 CLARK — THIRTY-THREE NEW SPHINGIDAE pVol.^VIH* 



Americas. It is closely allied to Xylophanes rvfescens Roth., 

 resembling it closely in general appearance and maculation, 

 especially on the fore and hind wings beneath, and less closely 

 so on both wings above. The only female specimen of X. 

 rufescens in my collection has exactly the same dimensions, 

 43 mm., 18 mm. and 24 mm., as this specimen. 



Antennae, slender, reddish brown, white toward tip; hook long and 

 gradual. Eye not lashed. Legs yellow, mid tibiae white. Palpus: first 

 segment white irrorated with brown at the base, the rest of segment red- 

 dish brown, yellow along the eye; second segment light brown. Eye 

 large. Head, thorax and abdomen above, uniformly reddish brown. 

 Breast and abdomen beneath, yellow laterally. Median area of breast 

 yellow, and of abdomen light yellow irrorated with black. Dark brown 

 lateral side stripe. Cilia of fore wing reddish brown above and beneath. 

 Cilia of hind wing reddish brown above and beneath from SC5 to R3. White 

 between the veins from R3 to anal angle, as in X. rufescens. 



Fore wing above : Ground tone buff, densely shaded and irrorated with 

 reddish brown, closely resembling X. rvfescens. Black transverse longitudi- 

 nal irrorations along submarginal distal area, and for some distance along 

 costal margin from the wing tip. Dark apical mark as in X. rufescens, from 

 which a line extends irregularly to R2. Small dark stigma in a circular 

 buff area. 



Fore wing beneath. Basal half brick red. A heavy irregular dark red 

 line extends from a point on the inner margin 10 mm. distant from the 

 hinder angle to a point on the costal margin 16 mm. distant from the wing 

 apex, curving basad as it approaches this point. Another fainter and similar 

 line parallels this distally. A series of prominent black vein dots about 

 9 mm. distant from the distal margin. A strongly marked brown distal 

 marginal band, lightly irrorated with black, 1 mm. in width at the wing 

 apex, widens to 9 mm. at R2, where the black vein dot exactly touches its 

 edge, thence it narrows abruptly to a width of 5 mm. on R3, and extends 

 irregularly, broader between the veins, to hinder margin, where it is 2 mm. 

 in width. This band is identical in general form with that of X. rufescens. 

 The median area between the distal marginal band and the red basal area 

 is yellow, irrorated with black transverse markings. 



Hind wing above. Black basally. Reddish brown distal marginal band, 

 5 mm. in width along inner margin, narrows gradually to SM2, where it 

 becomes vestigial. Median area light buff across the whole width of the 

 wing, lighter in color anally. 



Hind wing beneath. Transverse dark red median line extends from 

 inner margin to M2. Brown distal marginal band similar in area to that on 

 upper side of wing. Remainder of wing area yellow heavily irrorated with 

 reddish brown, except along anal margin, which is lighter in tone. 



