( 441 ) 

 23. Histia libelluloides. 



(J J . Gynautocera libelluloides Herr.-Schaff., Auss. Schmctl. p. 7 (and on cover) t. 31. f. 11. 12. 13 



(1850-53) (Java). 

 ffistia selene Walker (non Chalcosia sele.ne Kollar, 1844), List. Lep. Int. Brit. Mus. II. p. 413. n. 2 



(1854) (pt. ; Java) ; Moore, Cat. Lep. Ins. E. I. C. II. p. 312 (1859) (syn. r.r parte ; Java) ; 



Kirby, Cat. Lep. Hrt. I. p. 55. n. 2 (1892 (pt. ; " E. Indies " !). 

 ? . Ilistia vacillans Walker, I.e., p. 413. n. 3 (1854) (Java). 

 (J. Gijnaiitncera selene, Herr.-Schaff., I.e., p. 57. t. 77 (1855-58) (Java). 

 ? . Gynautocera racillans, id., l.r. 



$. Histia albimacula Hampson, Moths of India I. p. 280. n. 598 (1892) ( J Java, non (J Burma). 

 ? . Histia libelluloides, Kirby, I.e., p. 55. n. 4 (1892) (Java). 



In this species the sexes are different, the female having a baffish white band 

 across the hindwing which is absent from the tnale. 



Walker wrongly identified a female of this species with KoUar's Chalcosia 

 selene from Kashmere, and described another female specimen as H. vacillans. 

 Herrich-Schaffer, who had previously figured and named the sexes of the present 

 insect as libelluloides S ? , afterwards accepted the two names given by Walker, 

 calling the S selene and the ? vacillans. In Moths of India I. Sir George 

 Hampson correctly treated Kollar's selene as being the same species as Gynautocera 

 rhodope Cramer, 1776, = flabellicornis Fabr., 177.5, bnt considered the white- 

 banded ? from Java to be that sex of H. albimacula, the S of which came from 

 Burma. 



We have H. libelluloides from Sumatra, Java and Lombok. The individuals 

 from the three islands present the following slight differences : — • 



23^-. H. libelluloides sumatrana Rothsch., subsp. nov. 



<?. Abdomen more extended red, the black spots of the sternites absent or 

 minute, red spot at anterior margin of mesonotum very small. 



Wings above as in the Java form ; but the brownish grey streaks upon the 

 veins of the forewing less clearly defined ; underside of both wings less black, the 

 cellules more shaded with metallic pale glaucous blue than in the Java subspecies, 

 the hindwing especially being more extended blue ; the black streaks between 

 the veins of the forewing nearly reach the outer margin, being longer than in 

 lib. libelluloides, and are less well defined. 



? . Hindwing above more extended pale glaucous blue, nearly tlio whole area 

 from cell to abdominal margin being occupied by this colour ; the huffish white 

 band is broad and enters the cell in two out of our three individuals, in the third 

 specimen the band touches the apex of the cell, and its npper partition, C — SC^ is 

 obsolete. On the underside the wings are more metallic than in the Java race, 

 especially the abdominal region of the hindwing ; the outer area of the forewing 

 is less pale and the band of the hindwing is broader at and beyond M' than 

 lib. libelluloides. 



Hob. Setinjak, W. Sumatra, May and June 189S {type, c?) and Padang 

 Sidempoean, W. Sumatra (Ericsson), .5 c?(?, 3 ? ?. 



23*. H. libelluloides libelluloides Herr.-Schaff, I.e. 



The band of the hindwing of the ? is variable in width, but does not seem to 

 ever enter the cell on the upperside, though it occasionally does so below; the baml 



