''Macrosoma albistria'' is moth-like butterfly described by

Louis Beethoven Prout Louis Beethoven Prout (1864–1943) was an English entomologist and musicologist. Prout specialised in the insect order (biology), order of Lepidoptera, especially the Geometridae, or geometer moths, on which he was a foremost authority. He cont ...

in 1916. It belongs to the family

Hedylidae Hedylidae, the "American moth-butterflies", is a Family (biology), family of insects in the order Lepidoptera, formerly representing the superfamily Hedyloidea. They have traditionally been viewed as an Extant taxon, extant sister group of the bu ...

. Originally it belonged to the genus '' Phellinodes''.

Malcolm J. Scoble Malcolm, Malcom, Máel Coluim, or Maol Choluim may refer to: People * Malcolm (given name), includes a list of people and fictional characters * Malcom (footballer) (born 1997), Brazilian football forward * Clan Malcolm * Maol Choluim de Innerpef ...

combined it with ''Macrosoma'' in 1986.

Distribution

The species is found in the central and southern

Peru Peru, officially the Republic of Peru, is a country in western South America. It is bordered in the north by Ecuador and Colombia, in the east by Brazil, in the southeast by Bolivia, in the south by Chile, and in the south and west by the Pac ...

: Carabaya Province, La Unión Province; southern Bolivia.

Description

Male

Wings

Male ''M. albistria'' has wings of greyish brown ground colour. The apex of the forewing is dark brown and weakly emarginate. The dark apical has three 3 small white marks at proximal edge. The termen has poorly defined whitish weak dark streak from the costa. Spot is found medially along the costa. The hindwing is small glassy and has patch at the base.
The length of the forewing is 17–20 mm.

Genitalia

Following are the characteristics of the genitalia: * The medial element of Gnathos is tongue-shaped, with minute denticles, weakly downcurved and laterally denticulate. * Valva is narrow.

Antenna

The antenna is not bipectinate.

Diagnosis

This species is distinguished from '' M. coscoja'' by the weaker downcurving of the gnathos, and by the shape of the valva. The forewing of ''M. albistria'' lacks the narrow, postmedial streak which is found in ''M. coscoja''. The glassy patch at the base of the hindwing is present in ''M. albistria'' but absent in ''M. coscoja''.

References

Macrosoma albistria - Overview - Encyclopedia of Life

Catalogue of Life

A catalogue of the Hedylidae (Lepidoptera: Hedyloidea), with descriptions of two new species.

An identification guide to the Hedylidae (Lepidoptera: Hedyloidea).

Sources

Macrosoma albistria - Overview - Encyclopedia of Life.
/ref> Scoble, M.J. (1990). A catalogue of the Hedylidae (Lepidoptera: Hedyloidea), with descriptions of two new species. ''Insect Systematics & Evolution, Volume 21, Number 2, 1990, Page: 113-119'' Scoble, M.J. (1990). An identification guide to the Hedylidae (Lepidoptera: Hedyloidea). '' Insect Systematics & Evolution, Volume 21, Number 2, 1990, Page: 121-158'' {{Taxonbar, from=Q16448734 Hedylidae Butterflies described in 1916 Taxa named by Louis Beethoven Prout Hedylidae of South America