New Forms of the Genus Delias (Pieridae) 305 



well defined, but reaching base of vein 6. Submarginal series of yellow 

 spots placed a little farther from the margin than in echo. 



Length of fore wing : 34 mm. 



Bum, October, 1918, one ? (W. J. C. Frost). 



4. Delias gabia (Bdv.) aurantimacula subsp. nov. 



Distinguished by the orange patch on the hind wing below being 

 smaller than in the allied forms felsina Fruh. and scribonia Fruh. 



S . Upperside as in gabia from Waigeu but with a slightly broader 

 margin to the hind wing. 



Underside of fore wing as in the type form. Hind wing with orange 

 from the submedian to vein 3, with slight orange scaling in cellule 3. 

 The orange colour varies in extent but rarely reaches the cell, and ranges 

 from deep orange to yellow orange, being in one specimen almost merged 

 with the remaining yellow, so that this individual would be like the type 

 form, except that the median area is a darker tint. The marginal band 

 not broader than in the type form and either spotted or unmarked. 



? . Upperside of fore wing as in the type form. Hind wing with 

 slightly broader margin. 



Underside of fore wing as in the type form. Hind wing with broader 

 black margin, much as in scribonia. The submarginal spots of both 

 wings are deeper orange than in the type form. The orange median 

 area as in the 3 , but reaching vein 4. 



Nomnagihe, 2,000 feet, January to February, a small series of $ «" 

 and two ? ? (types). Wanggar, February, five $ $ two 9 ? ; Wai 

 Sai Eiver, 2,000 feet, June, to July, four S S ; Arfak Mountains : 

 Mount Misresi, 3,000 feet, January, one S one ? ; Biver Uty, 1,500 

 feet, March, three $ <? . 



The series does not contain any specimens which we could associate 

 with zarate Smith. Lord Bothschild has recorded (B.O.U. & Woll. 

 Exp. Lep. 1915) both species from the Snow Mountains. A specimen 

 from the Oetakwa Biver was described by him as zarate ftavidior (p. 5) 

 and on p. G he records gabia Bdv. from the same place at a lower 

 elevation. Specimens in the Joicey collection from the Oetakwa Biver 

 belong to gabia felsina Fruh. We are still unable to distinguish gabia 

 from zarate on the material available and a gradual racial transition 

 appears to exist. The race callistrate Smith, from Fergusson Island, 

 is better defined than any of the other forms. 



In some specimens of gabia from Waigeu, a small splash of orange 

 is found in the median area. 



