About Coleophora trifolii (Curtis, 1833)
Coleophora trifolii, commonly known as the trefoil thick-horned tinea or large clover case-bearer, is a moth species belonging to the family Coleophoridae. This species is distributed in Europe, North Africa, Asia Minor, Afghanistan, and North America. Adult moths have a wingspan of 15 to 20 millimeters. They are metallic bronze green Coleophora moths with pale yellow scales fringing their eyes. Definitive identification of this species requires microscopic examination of its genitalia. Adult Coleophora trifolii are active from June to July, and they fly and are active during the day. The larvae feed on the seeds of plants from the Melilotus genus, including Melilotus albus, Melilotus officinalis, and Melilotus altissima, from July to September.
