Spalgis epius,[1] commonly known as the apefly, is a small species of butterfly found in the Indomalayan realm that belongs to the lycaenids or blues family.

Underside: pale, silky, brownish white; forewings and hindwings crossed by numerous, very slender, short, sinuous, transverse, dark brown strigae which are outwardly slenderly edged with brownish white of a shade paler than that of the ground colour; both wings with an anteciliary dark brown line with on the inner side a similar edging.

Antenna, head, thorax and abdomen pale brown, club of antennae ochraceous at apex; beneath: the palpi and thorax brownish grey, abdomen pale brown.

The caterpillars of this butterfly, like other members of the subfamily Miletinae, are entomophagous and are predators of scale insects like mealybugs.

[6][7] The species unlike many other lycaenid butterflies is not myrmecophilous (it has no mutualistic associations with ants).