(051011 revised, 051007 created)
Geographical Distribution of P. alphenor
From "Distribution map of Phillipine Pappilionidae and its related taxa." (Fig. 10 of Hiura I, Aljlgar RE (1971)). Capitals show species and small letters show the subspecies of the Philippine species.
Isamu HIURA and Romualdo E, ALJLGAR (1971)
STUDIES ON THE PHILIPPINE BUTTERFLIES CHIEFLY COLLECTED BY THE C0-0PERATIVE SURVEY BY THE OSAKA MUSEUM OF NATURAL HISTORY AND THE NATIONAL MUSEUM OF THE PHILIPPINES, 1969. part I : Papilionidae *
Bulletin of the Osaka Museum of Natural History, 24: 29-44 (1971), pls. 1-4.