214 JOURNAL, BOMBAY NATURAL HISTORY SOCIETY, 1S92. 



other piece of the scant vegetation that always exists in their 

 haunts. The three groups Teracolus, Idmais, and CaUomne were 

 united some years ago by Mr. Butler under the head of Teracolus 

 as not being structurally distinct, and I have followed him, — 

 though Gallosime (with coloured tips to the forewing) and IdmaiH 

 (without such tips) appear worthy to be kept separate on account 

 of their peculiar facies, whereas one group of Idmais (the T. faustus 

 group) seems almost entitled to generic distinction, not only on 

 account of the embossed spot on the internal area near the base 

 of the forewing in the male, but also on account of its peculiar 

 coloration. The Cajjparidacce appear to be the natural attraction 

 for the Teracoli, C. galeata and its allies being specially attractive 

 to T. faustus, T. vi and others of that group. 



25. T. Calais, Cramer, Pap. Exot., vol. i, pi. liii, j&gs. C,D (1779). 

 T. dynamene, Klug, Symb. Phys., pi. vi, figs. 15, 16 (1829). 



T. carnifer, Butler, P. Z. S., 1876, p. 138, n. 42, pi. vii, figs. 

 8, 9. At Aden I consider these three forms to be varieties of one 

 species. I have taken them "in coitu " together, they fly at the same 

 season, and all the specimens of T. Calais taken were, I believe, females- 

 With the exception of T. pleione and (perhaps) S, glauconomCy 

 this is the commonest butterfly in Aden. 



26. T. phisadia, Godart, Enc. Meth., vol. ix, p. 132, n. 40 (1819). 

 Common. This butterfly has near Aden at least four forms of 

 female : — 



[a) One resembling the male. 



[h] A creamy white form. 



(c) A saffron yellow form. 



[d) A pure yellow form. 



It is one of the handsomest species in the genus. Col. Swinhoe, 

 1. c, quotes this species as " the common form of the group at Aden.'* 

 Though common it is nothing like so common as T. dynamene. 



27. r. vi, Swinhoe, P. Z. S., 1884, p. 437, pi xxxix, figs. 6, 7. 

 Although not uncommon it was a long time before I got any number 

 of specimens of this butterfly. Many a weary ten minutes I 

 spent waiting for it to come to some patch of Capparis galeata on 

 a barren hill-side, a burning sun overhead and a precipice below ; 

 in due course it possibly came, but if missed came back no more, 



