Thecodiplosis zauschneriae Contarinia zauschneriae, also known as the California fuchsia gall midge, is a species of gall midge that induces roselle-form bud galls on Epilobium canum, a flowering plant of western North America.

[1][2] The galls are typically 25 millimeters high and about 15 millimeters around.

[2] The coloration roughly mimics that of a stereotypical red rosebud, with red on the upper half where the petals would be and green-yellow at the base where the leaflets would be.

[2] The type species was collected by Ephraim Felt in the Puente Hills, near Whittier, California, in 1910.

This article related to members of the insect order Diptera (true flies) is a stub.