3895.] L. de Niceville & Dr. L. Martin— Butterflies of Sumatra. 489 
yellow with deep shining black (as if varnished) spots. The males 
are very fond of flowers, on which they settle with closed wings like 
an j Euploea. It is almost certain that all the species of Delias feed 
in the larval state on Viscum and Lorantlms which are found everywhere, 
and as there are species of Loranthacese occurring also on Rhizophores 
(Mangrove trees) on the sea beach, the strange fact which has 
been observed by Dr. Hagen that D. parthenope , Wallace, is the only 
butterfly found in the Mangrove forests, is explained. 
528. Delias singhapura, Wallace. 
Hagen. One female only obtained near Selesseh in June, 1894. 
529. Delias danala, de Niceville. 
D. danala, de Niceville, Journ. Bomb. Nat. Hist. Soc., vol. viii, p. 51, n. 11, 
pi. L, fig. 9, male (1893). 
D. karo, Hagen, Iris, vol. vii, p. 33, n. 61, pi. i, fig. 4, male (1894). 
Hagen as karo. 
530. Delias hageni, Rogenhofer. 
D. hageni, Bogenhofer, Verh. zool.-bot. Gesellscb. Wien, vdl. xlii, p. 572, n. 2, 
(end of January, 1893) ; id., Mitis, Iris, vol. vi, p. 113, n. 75, pi. iii, fig. 5, male 
(1893). 
D. datames, de Niceville, Journ. Bomb. Nat. Hist. 8oc., vol. vii, p. 557, n. 10 
(23rd April, 1893); idem, id., 1. c., vol. viii, p. 53, n. 13, pi. L, fig. 8, male (1893). 
D. simanabum, Hagen, Iris, vol. vii, p. 34, n. 63, pi. i, fig. 3, female (1894). 
Hagen as hageni and simanabum. Both D. hageni and D. danala, 
de Niceville, occur only at the elevation of Soengei Batoe and on the 
Central Plateau; they are most numerous from June to August, during 
the other months of the year but few specimens have been obtained. 
531. Prioneris clemanthe, Doubleday. 
Hagen. Rare in our area, a few specimens only from near Selesseh 
including one of the excessively rare females. Like Hehomoia burneensis, 
Wallace, it is more common on our western boundary, as the Gayoe 
collectors have brought in males in large numbers. Plies from January 
to June, but is most abundant in February. 
532. Prioneris hypsiptle, Weymer. 
P. hyjpsipyle , Weymer, Stet. Ent. Zeit., vol. xlviii, p. 12, n. 10, pi. i, fig. 1, male 
(1887). * 
Hagen as hypsypule [sic]. My female differs from the male only 
in the forewing being blunter, less produced at the apex. Dr, Martin 
