''Epichostis tympanias'' is a

moth Moths are a group of insects that includes all members of the order Lepidoptera that are not Butterfly, butterflies. They were previously classified as suborder Heterocera, but the group is Paraphyly, paraphyletic with respect to butterflies (s ...

in the family

Xyloryctidae Xyloryctidae is a family of moths contained within the superfamily Gelechioidea described by Edward Meyrick in 1890. Most genera are found in the Indo-Australian region. While many of these moths are tiny, some members of the family grow to a wing ...

. It was described by

Edward Meyrick Edward Meyrick (25 November 1854 – 31 March 1938) was an English schoolmaster and amateur entomologist. He was an expert on microlepidoptera and some consider him one of the founders of modern microlepidoptera systematics. Life and work Ed ...

in 1908. It is found in

Assam Assam (, , ) is a state in Northeast India, northeastern India, south of the eastern Himalayas along the Brahmaputra Valley, Brahmaputra and Barak River valleys. Assam covers an area of . It is the second largest state in Northeast India, nor ...

, India. The

wingspan The wingspan (or just span) of a bird or an airplane is the distance from one wingtip to the opposite wingtip. For example, the Boeing 777–200 has a wingspan of , and a wandering albatross (''Diomedea exulans'') caught in 1965 had a wingsp ...

is 18–23 mm. The forewings are rather light fuscous, somewhat deeper in females. The costal edge, except towards the base, and veins towards the costa are more or less streaked with ferruginous yellow, and the costal area in males variably suffused with light ochreous yellowish. There are two large sharply marked black dorsal blotches, edged with pale yellowish, the first rounded triangular, extending on the dorsum from the base to near two-fifths and reaching more than half across the wing, the second irregular trapezoidal, reaching three-fourths of the way across the wing and extending in the disc from before the middle to five-sixths, but more or less considerably narrowed towards the dorsum, the posterior edge obtusely prominent in the middle of the wing. There is an interrupted black terminal line. The hindwings in males are grey, in females dark grey.''Journal of the Bombay Natural History Society''. 18 (3): 628.

References

Epichostis Moths described in 1908 {{Xyloryctidae-stub