Mr. A. G. Butler on Madagascar Lepidoptera. 333 detected in every cell of the green tissue, especially in Pinus maritima. From the facts here communicated I believe that I have, in the first place, established anatomically and microchemically the individuality of the hypochlorin in the chlorophyll-bodies, and proved the necessity of light for its formation in the Angiosperms. With regard to the physiological relations of chlorophyll to hypochlorin I have already given some intimations, and expressed the opinion that chlorophyll, by means of its absorption of light, protects the hypochlorin from combustion in intense light. Upon the presumable genetic relations of chlorophyll to hypochlorin my investigations are not yet completed. XXXII. — On a Collection of Lepidoptera from Madagascar, with Descriptions of neio Genera and Species. ByAETHUR G. Butlee, F.L.S., F.Z.S., &c. The following species have been selected from a large collection made at Fianarantsoa by the Rev. W. Deans Cowan. Rhopaloceea. Nymphalidae. Satybinje. 1. Gnophodes hetsimena $ . Cyllo betsimena, Boisduval, Faune Mad. p. 58. n. 1 (1833). A fine specimen. In my Catalogue of Fabrician Lepidoptera I erroneously sunk this species as a synonym of G. pythia ; now that we possess both I find the Madagascar species much nearer to the G. parmeno of Trimen from Natal, which is of the same size and form, but instead of a broad oblique white belt on the primaries has a rather narrow angulated ochreous one. As the G. parmeno of Trimen is not identical with the West-African form, I propose to call it G. diversa. 2. Pseudonymplia subsimilis. Pseudomjmpha subsimilis, Butler, Ann. & Mag. Nat. Hist. ser. 5, vol. iv. p. 228. n. 3 (1879). The type was also taken at Fianarantsoa. Ann. & Mag. Nat. Hist. Ser. 5. Vol. v 23
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