About Euschemon rafflesia (MacLeay, 1926)
The regent skipper (Euschemon rafflesia) is quite small when compared to most butterflies, but it is larger than most species in the skipper butterfly family, Hesperiidae. Its common name comes from its striking bright coloration: it is mostly black, with clearly visible yellow and red spots and bands. A distinctive feature of this butterfly is that males have a frenulum and retinaculum, structures that lock the forewing and hindwing together during flight. This structure is thought to be an ancestral trait for most or all Macrolepidoptera, but it is not present in all known butterflies (Rhopalocera) except for the regent skipper and the moth-butterflies of the family Hedylidae.
