''Rustica basiprocessus'' is a

moth Moths are a paraphyletic group of insects that includes all members of the order Lepidoptera that are not butterflies, with moths making up the vast majority of the order. There are thought to be approximately 160,000 species of moth, many of w ...

of the family

Erebidae The Erebidae are a family of moths in the superfamily Noctuoidea. The family is among the largest families of moths by species count and contains a wide variety of well-known macromoth groups. The family includes the underwings ('' Catocala'') ...

first described by Michael Fibiger in 2008. It is known from the mountains of central

Sri Lanka Sri Lanka (, ; si, ශ්‍රී ලංකා, Śrī Laṅkā, translit-std=ISO (); ta, இலங்கை, Ilaṅkai, translit-std=ISO ()), formerly known as Ceylon and officially the Democratic Socialist Republic of Sri Lanka, is an ...

. The

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

is about 12.5 mm. The forewing is long, narrow, dark brown and the reniform stigma is weakly marked. The costal patch in the upper medial area is well marked and blackish. The antemedial line is marked and blackish. The terminal line of the hindwing is weakly defined. There is a discal spot.

References

* Micronoctuini Moths described in 2008 Taxa named by Michael Fibiger {{Micronoctuini-stub