About Imma acosma (Turner, 1900)
Imma acosma is a moth species belonging to the family Immidae. It was first described by Alfred Jefferis Turner in 1900. This species is found in Australia, with confirmed records from Queensland and New South Wales. The wingspan of Imma acosma measures 16 to 17 mm. Its forewings are brownish-fuscous; the posterior section of the disc is sometimes suffused with brownish-ochreous, and there may occasionally be a small erect fuscous line on the inner margin at one-fifth of the wing length. A very irregularly angled fuscous line runs from the costa before the middle of the wing to the inner margin beyond the middle. There is also a fuscous dot in the disc at two-thirds of the wing length, followed by two oblique fuscous lines that start from the costa at three-fifths and four-fifths of the wing length, running towards the anal angle and hindmargin respectively without reaching these structures. All of these forewing markings can be completely absent. Sometimes, a dark fuscous line is present close to the upper three-fourths of the hindmargin. The hindwings of Imma acosma are fuscous-grey.
