Jan. 25 

 1922 



CLARK — TWENTY-FIVE NEW SPHINGIDAE 



The two outstanding characteristics of this species are that 

 the fore wing is of almost exactly the shade of dull violet that 

 marks Isognathus caiicae, while the hind wing has the pure 

 white color of P. manducoides, to which latter this species is 

 most closely allied. 



Antennae and palpus dark brown. Occiput, thorax and abdomen above, 

 dark brown irrorated with dull violet. Four prominent rectangular yellow 

 side patches on abdominal tergites, on segments one to four inclusive. 

 White side patch on fifth abdominal tergite. Breast dark brown. Ab- 

 domen beneath, white irrorated with yellow. Side tufts yellow. 



Fore wing above : Dull violet, of same tint as fore wing of /. caricae, but 

 slightly darker. Unicolorous, save for the following markings. Four trans- 

 verse dark brown lines — line one, sub-basal, extends from a point 7 mm. 

 from the wing base on costal margin sharply toward the hinder angle a 

 distance of 4.5 mm., from this point sharply angled basad it extends to the 

 inner margin, which it reaches at a point 5 mm. from the base; line two, 

 antemedian, extends from a point on costal margin 12 mm. from the wing 

 base to a point on inner margin 10 mm. from the base, curving distad until 

 it reaches Ml, thence basad; line three, postmedian, extends from a point 

 16 mm. from the apex distad to R3, thence basad to inner margin, which it 

 reaches 10 mm. from hinder angle (a dark dash 5 mm. in length crosses this 

 line between R2 and Ml); line four, submarginal, extends from a point 

 on costal margin 10 mm. from apex distad until at R3 it is within 4 mm. of 

 distal margin, whence it runs parallel to this margin, reaching the inner 

 margin 5 mm. from hinder angle; all four lines are irregular in their out- 

 line, and angled on the veins. Dark brown submarginal patches on veins 

 R2, R3, Ml and M2, about 2 mm. distant from distal margin. A dark 

 brown apical line so characteristic of the genus Protoparce extends from 

 the wing apex a distance of 10 mm., angled on SC5, and ending on Rl, 

 where it bisects transverse line four. 



Hind wing above : Pure white, tinged with pink along anal margin, and 

 with a dark brown distal marginal band, 4 mm. in width, which extends 

 basad along the anal fold, and also is produced basad 1.5 mm. at the veins. 



Fore wing below: Brown irrorated with dull violet. Unicolorous, save 

 for a basal whitish area. Veins prominent. 



Hind wing below: White basally and along anal margin, thence irro- 

 rated more and more heavily with brown to the distal and the inner margin. 

 Veins prominent. 



This is a beautiful and unusual form, and unlike any Pro- 

 toparce with which I am familiar. 



