J 1922 5 ] CLARK — TWENTY-FIVE NEW SPHINGIDAE 9 



The strongest point of difference between this form and those 

 from Cuba, Haiti and Jamaica, is the marginal band of the 

 hind wing, which is about half as wide as in the other West 

 Indian forms, and but slightly wider than in papayae. The 

 ground tone of the fore wing is brown, as in jamaicensis and 

 rimosa, differing in this regard sharply from the white of molitor 

 and papayae. The broad light gray distal marginal band on 

 the under side of both the fore and the hind wing, so marked in 

 molitor, less so in rimosa, and lacking in jamaicensis and 

 papayae, is very prominent in wolcotti. 



The salient characteristic of wolcotti is its close approxima- 

 tion to molitor, rimosa, jamaicensis and papayae, in one particu- 

 lar in the case of each form. It is a link connecting the other 

 subspecies, geographically and racially; and with them it makes 

 a total of eight subspecies of Isognathus rimosa. Each is well 

 marked, and the whole forms a remarkable group. 



Haemorrhagia fuciformis affinis f . nigra forma nov. 



Al. ant. long., d", 25 mm. Al. ant. lat., cf , 8 mm. Marg. ext., cf, 15 mm. 

 Habitat. — Mokanshan near Hangchow, China. Two males in coll. B. 

 Preston Clark, received from Dr. O. Staudinger and A. Bang-Haas. 



While the maculation of the body and wings of this form show 

 it to be close to f. alternata, there are the following differences. 

 Fore and hind wings both above and beneath are dead black, 

 instead of the dark red of f. alternata. Thorax and posterior 

 sternites are a deep orange instead of yellow. The black margi- 

 nal distal band of the fore wing is much narrower in this form, 

 being only 4 mm. in width at SC 5, and tapering to a width of 

 1 mm. at the hinder angle. The distal marginal band of the 

 hind wing also is very narrow. There are no yellow hairs along 

 the costal margin of fore wing, and they are sparse at the base 

 of both fore and hind wing, contrasting in this respect with the 

 large number in f. alternata. 



