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freyerella species group

Elachista irrorata - Elachista illectella Elachista irrorata - Elachista illectella Elachista irrorata - Elachista illectella Lepidopteran mine on Bromus pubescens.  Cosmopterix? - Elachista illectella Pennsylvania Moth - Elachista illectella moth - Elachista illectella Elachista illectella  - Elachista illectella Elachista illectella
Show images of: caterpillars · adults · both
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Lepidoptera (Butterflies and Moths)
Superfamily Gelechioidea (Twirler Moths and kin)
Family Elachistidae (Grass Miner Moths)
Subfamily Elachistinae
Genus Elachista
No Taxon freyerella species group
Synonyms and other taxonomic changes
Formerly a separate genus, Cosmiotes Clemens.
Eight species in North America
For now, all images apparently belonging to this group from the eastern US have been tentatively assigned to the widespread and common illectella. Images from Canada and the western US have been placed to species group. Below, the known ranges of the other seven described members of the group found in the Nearctic are provided.(1)

E. beorella — CAN: NL
E. freyerella — CAN: AB, MB, NT, NB, NS, ON, QC; US: MI; also Europe
E. galadella — US: WA
E. herbigrada — CAN: AB; US: CO, UT, WY
E. neithanella — CAN: AB, SK
E. rianella — US: AZ, CO
E. tuorella — CAN: AB; US: ID
The species of this group are very similar all over the world and are notoriously difficult to identify, sometimes even with dissection. E. illectella appears to be the commonest of them in eastern North America, according to Terry Harrison.
Print References
Kaila, Lauri. 1999. A revision of the Nearctic species of the genus Elachista s. l. III. The bifasciella, praelineata, saccharella and freyerella groups (Lepidoptera, Elachistidae). Acta Zoologica Fennica 211:1-235.
Kaila, Lauri. 2011. Elachistine Moths of Australia: (Lepidoptera: Gelechioidea: Elachistidae). Monographs on Australian Lepidoptera Volume 11. (Google Books)