Specimens which I collected near Bangkok in the dry period, are smaller than those from Tenasserim and exhibit above a darker greenish lustre.

(134 c) which I have at hand in numbers from West Sumatra, the surroundings of Padang Pandjang, considerably excels in size all the vicarious types.

Female still unknown; the males never common, preferring wet places on roads through the woods and on river-crossings, often in the midst of swarms of Pierides and Pap.

Under surface characterized by a very broad greenish-ochreous submarginal band extending distally to the very slender light blue anteterminal streaks, appearing thus still broader than in the female described above from Tenasserim.

— cygnus R. and J., an excellent race the most nearly allied to delphis from Assam by its habitus and by the mostly large apical spot of the male forewings.

is smaller, more intensely yellow than concha, with more blurred black and green sub¬ marginal lunae on the upper surface of the hindwings.

— niveus R. and J.. has a still more receding black apical margin than delphinion and beneath narrower, but darker ochreous longitudinal bands of the hindwings.