Ypsolopha atrobrunnella is a moth

Moth

A moth is an insect closely related to the butterfly, both being of the order Lepidoptera. Moths form the majority of this order; there are thought to be 150,000 to 250,000 different species of moth , with thousands of species yet to be described...

 of the family Ypsolophidae

Ypsolophidae

Ypsolophidae is a family of moth. They are included in the Plutellidae by many authors.-Ypsolophinae:* Phrealcia Chrétien, 1900** Phrealcia brevipalpella Chrétien, 1900** Phrealcia eximiella...

. It is known from the southern part of the Russian Far East

Russian Far East

Russian Far East is a term that refers to the Russian part of the Far East, i.e., extreme east parts of Russia, between Lake Baikal in Eastern Siberia and the Pacific Ocean...

 and north-eastern China

China

Chinese civilization may refer to:* China for more general discussion of the country.* Chinese culture* Greater China, the transnational community of ethnic Chinese.* History of China* Sinosphere, the area historically affected by Chinese culture...

.

The length of the forewings is 8.1–8.4 mm.

The larvae feed on Crataegus maximowiczii

Crataegus maximowiczii

Crataegus maximowiczii is a species of hawthorn with fruit that are red to purple-black....

and Pyrus species.

Etymology

The specific name atrobrunnella is derived from two Latin roots atro- and brunne-, collectively meaning dark brown, and refers to the forewing coloration of the species.