. Bulletin of the British Museum (Natural History) Entomology. REVISION OF GENUS PTYCHANDRA 221 segregated ecologically to some extent, the former being more common in advanced secondary woodland and the latter predominating in mature forest. In Borneo the Mt Kinabalu specimens of talboti were taken at about 2000 m close to primary forest along a road. The Trus Madi specimen was taken close to the summit in moss forest and the specimen of talboti from Mt Dulit was also cap- tured in montane forest. This species too is active in overcast weather. The flight habits of Ptychandra species appear s
. Bulletin of the British Museum (Natural History) Entomology. REVISION OF GENUS PTYCHANDRA 221 segregated ecologically to some extent, the former being more common in advanced secondary woodland and the latter predominating in mature forest. In Borneo the Mt Kinabalu specimens of talboti were taken at about 2000 m close to primary forest along a road. The Trus Madi specimen was taken close to the summit in moss forest and the specimen of talboti from Mt Dulit was also cap- tured in montane forest. This species too is active in overcast weather. The flight habits of Ptychandra species appear similar. A female talboti was at first mistaken for a riodinid of a genus such as Zemeros, which is found in a similar habitat and has similar flight characteristics and colouration. The particular specimen sat on leaves at the forest edge with wings half opened in the sun, making short brisk flights between periods of rest. The larger members of the genus resemble some Lethe species in flight, wing pattern, colouration and habitat. There is no record of crepuscular flight for Ptychandra, but from this resemblance to Lethe it appears likely to occur. BIOGEOGRAPHY AND PHYLOGENY The genus Ptychandra is of great interest as it is one of very few butterfly genera that has undergone considerable radiation within the Philippine island group. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original British Museum (Natural History). London : BM(NH)
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