It is dated to the earliest part of the Cenomanian stage of the Late Cretaceous, around 99 million years old.

Myanmymar aresconoides was described by John T. Huber and George Poinar Jr. from a specimen of a female embedded in Burmese amber.

The site is dated to the Albian-Cenomanian (97 to 110 million years ago) of the Early Cretaceous epoch.

[1] The generic name Myanmymar is derived from a euphonious combination of "Myanmar" and Greek μῶμος (mōmos, "spot" or "blot").

It has narrow forewings, with wing venation extending up to two-thirds of the length and a rounded lobe at the base.

Both wings do not possess microtrichia (small irregularly scattered hairs), except for two sparse rows beyond the venation of the forewings.

[1] As the specific name suggests, M. aresconoides is very similar to the extant genus Arescon in wing shape and venation.