''Dahlica triquetrella'' is a

bagworm moth The Psychidae (bagworm moths, also simply bagworms or bagmoths) are a family of the Lepidoptera (butterflies and moths). The bagworm family is fairly small, with about 1,350 species described. Bagworm species are found globally, with some, su ...

of the

Psychidae The Psychidae (bagworm moths, also simply bagworms or bagmoths) are a family of the Lepidoptera (butterflies and moths). The bagworm family is fairly small, with about 1,350 species described. Bagworm species are found globally, with some, su ...

family. It is found in

Europe Europe is a large peninsula conventionally considered a continent in its own right because of its great physical size and the weight of its history and traditions. Europe is also considered a Continent#Subcontinents, subcontinent of Eurasia ...

and

North America North America is a continent in the Northern Hemisphere and almost entirely within the Western Hemisphere. It is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South America and the Car ...

. The

wingspan The wingspan (or just span) of a bird or an airplane is the distance from one wingtip to the other wingtip. For example, the Boeing 777–200 has a wingspan of , and a wandering albatross (''Diomedea exulans'') caught in 1965 had a wingspan of ...

is 9–13 mm for males. Females are wingless. Though winged males occur in some sites in Europe, only the parthenogenetic wingless female form of ''Dahlica triquetrella'' has been recorded in Britain. The adult lives a very short time. The larvae feed on lichen and algae on trunks, rocks and old walls. This diet has to be supplemented by dead insects for development to be successful. The larva is active as the snow melts in Europe.

Gallery

File:Dahlica triquetrella (2944395938).jpg, pupal case File:2021 03 17 Dahlica triquetrella3.jpg, female imago

External links

UkmothsBug GuideLepiforum.de
Psychidae Moths of Europe Insects of Turkey Taxa named by Jacob Hübner Moths described in 1813 {{Tineoidea-stub