882 ox ABERRATIONS IN ORIENTAL BUTTERFLIES. [NoV. 23, 



streaks replaced by fuscous of a different colour from the ground- 

 colour of the fore wing, with two very indistinct dark grey 

 subapical spots, and two minute spots of the same colour near 

 the tornal angle of the fore wing. Hind wing : the sagittate 

 internervular streaks are whiter and longer than in the normal 

 form. 



No. IT. aberration (fig. 2) has the fore wing absokitely con- 

 colorous ; all spots and streaks have become obsolete. Hind wing : 

 the sagittate streaks are reduced to a minimum and thickly 

 irroi'ated with the hair-brown ground-colour. This form would 

 represent the var. papone Westw. if it did not entirely lack " the 

 bluish tint in certain lights." 



No. III. aberration (fig. 3) has the ground-colour much darker, 

 and similar to that of the form from continental India (true 

 panope Linn.), while all the bufi"-coloured spots and streaks are 

 greatly enlarged. Hi7id wing: the sagittate streaks are similar 

 to those in aberration I. 



Papilio clytia and Papilio panope and their various forms are 

 now considered to be one and the same species, dimorphic in both 

 sexes. It is pi-obable that the various forms have been gradually 

 developed in imitation of the forms of Danainee occurring with 

 them. It is suggested that the presence of Eupiloea alcathoe in 

 the same locality might be accountable for the disappearance of 

 the usual spots on the fore wing of figures 1 and 2 ; while, on the 

 other hand, Eupl(ea distanii, with its broad white subapical spots 

 (or, perhaps, in a lesser degree, Euplcea godarti), may be the model 

 of the form shown at fig. 3. 



EuscHEMA suMATRENSis, sp. n. (Plate LXXXII, fig. 6.) 



Habitat. Sumatra (June 1896). 



Description. — Head, thorax, and abdomen orange -yellow ; a 

 black spot on each tegula ; ground-colour of wings Indian red ; 

 markings similar to those of Javan specimens of E. militaris, fi'om 

 which it difiers in being without the lower basal black streak ; 

 the black spots in interspaces 2 and 3 of fore wing largei- and the 

 spot below the cell of the hind wing smaller, almost obsolescent ; 

 it also lacks the black bands across the thorax and abdomen, which 

 are such a prominent feature in that species ; inner margin of 

 hind wing orange, fringed with orange hairs. 



Some years ago the writer submitted the specimen from which 

 the accompanying fig. 6 is drawn to Sir G. Hampson for identifi- 

 cation. At that time (1907) there were no corresponding 

 specimens, or, indeed, anything approaching it more nearly than 

 E. isolata (which is a yellow insect), in the British Museum, and 

 Sir George was unable to identify it. When preparing figures for 

 this paper the writer made the accompanying drawing and sent it 

 to Sir George Hampson, who wrote as follows : — "We now have a 



