''Ethmia tricula'' is a

moth Moths are a paraphyletic group of insects that includes all members of the order Lepidoptera that are not butterflies, with moths making up the vast majority of the order. There are thought to be approximately 160,000 species of moth, many of w ...

in the family

Depressariidae Depressariidae is a family of moths. It has formerly been treated as a subfamily of Gelechiidae, but is now recognised as a separate family, comprising about 2,300 species worldwide.Heikkilä, M. ''et al''. 2014: Morphology reinforces proposed mo ...

. It is found in

California California is a U.S. state, state in the Western United States, located along the West Coast of the United States, Pacific Coast. With nearly 39.2million residents across a total area of approximately , it is the List of states and territori ...

, United States. The length of the forewings is about , making it the smallest member of the genus ''

Ethmia ''Ethmia'' is a large genus of small moths. It is the type genus of the gelechioid family Ethmiidae, which is sometimes included in Elachistidae or Oecophoridae as subfamily. Selected species Species of ''Ethmia'' include:See references in Savel ...

'' in the New World. The ground color of the forewings and hindwings is uniform, dull gray-brown including the fringes.

References

Moths described in 1973 tricula {{Ethmiinae-stub