Neargyractis slossonalis

Neargyractis slossonalis, the dimorphic leafcutter moth, is a moth in the Crambidae family. It was described by Dyar in 1906. It is found in Cuba and the south-eastern United States, where it has been recorded from Alabama, Florida, South Carolina, Georgia and Mississippi.

The wingspan is about 13 mm. Adults have been recorded on wing year round.

Larvae are aquatic and live amongst submerged roots of plants growing in and along streams and lakes. They feed on young roots and periphyton. The larvae are pale to light grey-brown with a dark brown head. Full-grown larvae reach a length of about 20 mm. Pupation takes place underwater amongst the roots.