Elymnias caudata,[1][2] the tailed palmfly,[2] is a species of satyrine butterfly found in South India.

Upperside: Male differs from E. hypermnestra as follows: the subterminal and preapical spots on the forewing white suffused slightly with dark scales; the terminal half of the hindwing tawny, more or less suffused with dusky black, which in some specimens forms a distinct border along the termen.

Underside: Female differs from E. hypermnestra in the more conspicuous broadly triangular white pre-apical patch on the forewing, and in the prominence of the broad tawny terminal half of the upperside of the hindwing, which shows through a pale, sometimes pinkish brown on the underside.

[1][2] "Spindle-shaped, slender, transversely rugose and clothed with short stout bristles...; head large, surmounted by two stout horns, sloping backwards, slightly branched at the ends; a pair of long straight caudal spines setose like the body; colour bright green with longitudinal yellow lines more or less distinct and two rows of large yellow spots tinged with green and sometimes tipped with black on the back; head dark brown, with a yellow cheek-stripe and frontal-line.

"[4] "Suspended by the tail only, but in a rigidly horizontal position, regular with the exception of two small pointed processes from the head and an acute thoracic projection above them; colour bright green, beautifully ornamented with four irregular rows of large yellow spots bordered with red."