New Forms of Indo- Australian Butterflies 567 



one $ ; 2,500 feet, October and November, one $ ; Teloeti Bay, 

 S. Ceram, February, three $ $ . 

 Types $ ? from 6,000 feet. 



NYMPHALIDAE. 



Cynthia erota dioneia Frtih. ? . 



C. erota dioneia Friihst., Seitz' Macrolep., ix, p. 480 (1912) (Sula 

 Islands) . 



This female much resembles buruana 2 , but the distal area of both 

 wings is yellow-brown, and the basal area paler than in the other form. 



Fore wing with the postdiscal black spot smaller, and with one white 

 subapical spot in 7 smaller than in buruana. Submarginal line a little 

 nearer the antemedial line. Hind wing with the white band more 

 tinged with bluish and its outer edge better denned than in buruana. 

 Some specimens with a small ocellus in 4 or in 6 ; ocelli more broadly 

 ringed with yellow-brown and the blue pupil smaller. Submarginal line 

 a little nearer the antemedial line. Tail as in buruana. 



Underside much as in buruana, the basal area of fore wing and of 

 hind wing to below cell pale yellow-brown. A similar but slightly 

 darker coloration extends over the distal area to the submarginal line, 

 less strongly above vein 4 of fore wing and below vein 5 of hind wing. 



Length of fore wing 54-56 mm. 



A series of both sexes from the Sula Islands, June, July, September, 

 1918, W. J. C. Frost. 



Cynthia arsinoe sulaensis subsp. nov. 



This insect less resembles arsinoe than erota in general appearance. 

 We have retained dioneia as an erota form as Friihstorfer compares it 

 with celebensis. Both dioneia and the race here described were received 

 in the same collection and both were taken in the period June, July 

 September. They differ anatomically. 



In both the valve is produced on its dorsal edge to a narrow finger- 

 like process, and on its ventral side it forms a triangular lobe ; between 

 this lobe and the dorsal process is a similar but smaller lobe very weakly 

 chitinized. 



In sulaensis the dorsal process of the valve is thickened posteriorly 

 from about midway and from this point to the base is joined the edge of 

 the small lobe. 



