OF BRITISH HONDURAS San Pedro on the Sarstoon River, but I have not observed it in the northern districts. 14. PAPILIO ID)US (Fabr). Found in the Western District and also at San Pedro Sarstoon. It is fairly abundant in these localities but does not seem to occur in the north. 15. PAPILIO BELESIS (Bates). This butterfly I have only taken at Punta Gorda in the south and also at San Pedro on the Sarstoon River. It is an uncommon insect. 16. PAPILIO PHILOLAUS (Bois). The dry season, which lasts from March to June, is the time to look out for this species. I have seen a few specimens at other times of the year, but the dry season is the period for its regular appearance. In common with so many other varieties of butterflies it is a lover of wet sand or mud-at least the males are, and I may say that this last statement applies equally to the other families, and is not only a peculiarity of the Papilio family, for the females are always conspicuous by their absence in the crowds of butterflies so often seen feeding together on patches of wet sand. The insect was found abundantly wherever I collected, and even in the streets of the towns Sit may be seen settling on any damp patch of