Mompha terminella is a moth in the family Momphidae found in Europe and North America.
The wingspan is 8–10 mm.[2] Adults are on wing from July to August in one generation per year.[3]
The larvae feed on small enchanter's nightshade (Circaea alpina) and enchanter's nightshade (Circaea lutetiana) mining the leaves of their host plant. The mine starts as a long, narrow, full depth, strongly spiral corridor. The frass is initially deposited in fine grains, but later in a central line. The larva leaves the mine to start elsewhere, either as a continuation of the existing corridor or in a new leaf. This new mine starts as a narrow corridor but soon widens into a large blotch. The frass is deposited in a broad band. Pupation takes place outside of the mine. Larvae can be found from mid-August to mid-September. They are whitish with a light brown head.[4]
It is found from Fennoscandia to the Iberian Peninsula and from Ireland to Romania. It is also found in North America.[1][5]
