1886.] Lepidoptera of Cachar. 373 



168. Delias pasithoe. 



Papilio pasithoe, Linnseus, Syst. Nat., ed. xii, vol. i, pt. 2, p. 755, n. 53 (1767). 

 Eighteen males and eleven females iu forests aromid Silcnri from 

 22nd May to lOth August. 



169. Delias descombesi. 



Pieris descomhesi, Boisduval, Sp. Gen,, vol. i, p. 465, n. 38 (1836). 



Six males and four females, Silcuri and around, 6th April to 8th 

 August. 



170. Delias hierte, var. indica. 



Thyca hierte, var. indica, Wallace, Trans. Ent. Soc. Lond., third series, vol. 

 p. 351, n. 21 (1867). 



Twenty-two males and ten females in forests around Silcuri, 29tli 

 May to 5th August. 



Mr. Wood-Mason notes that " both sexes have a strong grateful 

 mask odour." 



Subfamily Papilioninae. 

 171. Ornithoptera pompeus. 



Papilio pompeus, Cramer, Pap. Ex., vol. i, pi. xxv, fig. A, female (1775). 

 One male, Irangmara, 6th August, one female, Sildubi, 2nd July ; 

 another female, Irangmara, 28th July. 



172. Ornithoptera rhadamanthus. 



O. rhadamanthus, Boisduval, Sp. Gen., vol. i, p. 180, n. 8 (1836). 

 Two females, Nemotha, 12th and 13th September. 



173. Papilio {Iliades) androgeus. 



P. androgeos, Cramer, Pap. Ex., vol. i, pi. xci, figs. A, B, male (1776). 



Forty-two males ; six females, first form (figured by Distant as the 

 female of P. mestor, Hiibner), one female, second form (the P. ageuor of 

 Cramer), eight females, third form (the P. alcanor and P. achates of 

 Cramer) ; in forests and gardens in and around Silcuri, Irangmara, the 

 Doarband pass, Hasooria, and Rupacherra ; where it was almost alwavs 

 to be seen from 3rd April to 10th August. On one occasion, all four 

 forms were seen on the wing together in a group, having evidently just 

 emerged from the chrysalis state, and a specimen of each was taken. 



Mr. Wood-Mason notes that " all the forms of this species are in- 

 odorous." 



