Le Genre Charaxes Ochs. / The Genus Charaxes Ochs. (Lepidoptera Charaxidae Doherty) Faune de la Republique Unie du Cameroun. / Fauna of the United Republic of Cameroon by Darge, P

pp.136 with 40 full-page colour photographic plates at rear of text. Contents clean and in fine condition. In green cloth boards in fine condition. A fine copy. Text is duplicated in French and English. ‘This first volume of the Fauna of the United Republic of Cameroon is devoted to a group of butterflies, the Charaxes, who capture one’s imagination because they display remarkable evolutionary phenomena: the existance of twin species whose males are more difficult to distinguish than the females, which is contrary to the usual rule.’