purplish blues were represented by Apatura ilia, Terinos poros, 

 Isamia superba, Elymnias casiphone and the Castniid moth 

 Cyclosia ampliatiini, copper by Chrysophanus rutilus, Rumicia 

 phlaeas and a male Zegris chrysomalliis, and blue-green and 

 green by Papilio blumei, P. milon, P. philenor, Zygaena 

 filipendulae, Ino statices and others. We also examined 

 some Pyrales, which showed a mother-of-pearl irridescence, the 

 pearly underside of Agraulis venulia, and the metallic Plusia 

 festucae, P. chrysitis, P. moneta and Spatalia plusiotis. None 

 of these showed any fluorescence. Later on we examined most 

 of the British moths and a large number of Tropical butterflies 

 and moths belonging to widely different groups, but only a 

 very small proportion proved to be fluorescent. The glistening 

 yellow hind-wings of Troides [Ornithoptera) helena and T. 

 darsius, Gray, were very fluorescent, as were the yellow markings 

 of T. haliphron and T. hypolitus. The duller yellow of the 

 females was less fluorescent than that of the males. The yellow 

 on the abdomen of the males of T. alexandrae, T. poseidon, 

 T. urvilleana, Guer., and T. croesus, Wall., and the thin yellow 

 areas on the hind-wings of the last-named species were fluores- 

 cent, but the other brightly coloured portions w^ere non- 

 fluorescent. 



The following is a list of other fluorescent species. 



Geometridae. — Opisthograptis luteolata, Dup., 0. tridentifera, 

 Moore, Scoria lineata, Scop, {dealbata, L.), Aspilates gilvaria, F., 

 Venilia Mmalayica, KolL, Cory mica specidaria, Moore (very 

 slight fluorescence), Eiictenuraptenjx macidicaudana, Motsch., 

 Ourapteryx sambucaria, L., 0. ebideaia, Guen., 0. pluristrigata, 

 Warr., 0. clara, Butl., 0. persica, Men., 0. nivea, Butl., 0. 

 sciticaicdaria, Walk., 0. ficticaudaria, Walk., 0. primularis y 

 Butl., Enurapteryx nigrociliaria, Leech, Myrteta ocernaria, 

 Swnh,, Orthocabera sericea, Butl., Sirinopteryx rufivinciata. 

 Walk., Vindusara metachromata, Walk. 



Uraniidae. — Urania rhiphaeus, Drury (white fringes and 

 tails fluorescent), Epiplema himala, Butler. 



Hepialidae. — Hepialus Immuli, L. (male). 



Arctiadae. — Hylopliila bicolorana, Fuesl, (white hind-wings), 

 Halias prasin.ana (white hind-wings of female), H. sylpha 

 (white hind-wings of female). 



