Ypsolopha helva
Encyclopedia
Ypsolopha helva 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 north-western 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 6.7 mm.

Etymology

The specific name helva is derived from the Latin adjective helvus (meaning pale yellow) and refers to the yellowish white forewing of the new species.
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