Wednesday, November 14, 2012

CARL MARSHALL: Asian dragons at Butterfly Farm (well sort of!)


                                                                                                               
We at Stratford-upon-Avon Butterfly Farm are pleased to announce the emergence of the Green Dragontail Butterfly. The Dragontails - Lamproptera spp are a beautiful and unusual genus of Swallowtail butterflies (family-Papilionidae) found in South Asia and Southeast Asia. The genus is actually made up of two species, L. meges and L. curias  with the former taxon being divided up again into at least ten subspecies.

Having much smaller wing size to body length ratio, the Dragontail butterflies display an unusual whirring flight pattern when airborne, they rapidly beat their wings and dart back and forth in a manner similar to that of Dragonflies using their long tails as rudders.

In general the two species are not considered rare, however they now seem to be vulnerable in Peninsular Malaysia; apparently mainly due to localised habitat destruction. 

Dragontails are rather atypical when compared to normal Swallowtails in that they have such a small wingspan (about 50mm) and of course transparent wings - two features that are most unusual in Papilionidae butterflies. (This same family also houses the worlds largest butterfly Ornithoptera alexandrae with a massive wingspan of up to 30cm).

A specimen housed in Java seems to be the Holotype for the genus.

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