Monochroa tenebrella

Description

Monochroa tenebrella, the common plain neb, is a moth of the family Gelechiidae. It was described by Hübner in 1817. It is found in most of Europe. The habitat consists of open grassy areas and heathland. The wingspan is 10–12 mm. Adults are on wing from June to July and are day-flying. The larvae feed on Rumex acetosella. They feed on the roots and lower stems of their host plant.