Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
Clickable Guide
Moths Butterflies Flies Caterpillars Flies Dragonflies Flies Mantids Cockroaches Bees and Wasps Walkingsticks Earwigs Ants Termites Hoppers and Kin Hoppers and Kin Beetles True Bugs Fleas Grasshoppers and Kin Ticks Spiders Scorpions Centipedes Millipedes

Upcoming Events

National Moth Week photos of insects and people. Here's how to add your images.

Photos of insects and people from the 2019 BugGuide Gathering in Louisiana, July 25-27

Discussion, insects and people from the 2018 gathering in Virginia, July 27-29

Photos of insects and people from the 2015 gathering in Wisconsin, July 10-12

Photos of insects and people from the 2014 gathering in Virginia, June 4-7.

Photos of insects and people from the 2013 gathering in Arizona, July 25-28

Photos of insects and people from the 2012 gathering in Alabama

Photos of insects and people from the 2011 gathering in Iowa


Species Swammerdamia caesiella - Hodges#2413

Unknown micro - Swammerdamia caesiella Swammerdamia caesiella? - Swammerdamia caesiella Swammerdamia? - Swammerdamia caesiella Swammerdamia caesiella Swammerdamia caesiella Swammerdamia caesiella Swammerdamia caesiella - male Swammerdamia caesiella? - Swammerdamia caesiella
Show images of: caterpillars · adults · both
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Lepidoptera (Butterflies and Moths)
Superfamily Yponomeutoidea (Ermine Moths and kin)
Family Yponomeutidae (Ermine Moths)
Subfamily Yponomeutinae
Genus Swammerdamia
Species caesiella (Swammerdamia caesiella - Hodges#2413)
Hodges Number
Synonyms and other taxonomic changes
Swammerdamia caesiella (Hübner, 1796)
Tinea caesiella Hübner, 1796
Swammerdamia heroldella of authors not Hübner, 1825 (misapplied name)
Tinea nubeculella Tengström, 1848
Tinea griseocapitella Stainton, 1851
Explanation of Names
Specific epithet caesiella is from Latin meaning "blue-grey." (1)
Duckworth, (1965) misapplied Swammerdamia heroldella Hübner, 1825 to Tinea caesiella Hübner, 1796. But Hübner (1825) replaced Tinea caesiella Hübner, 1816, not T. caesiella Hübner, 1796, with Swammerdamia heroldella. S. heroldella was later synonymized with Paraswammerdamia albicapitella (Scharfenberg, 1805), a species recorded from BC.
Wingspan 9-13 mm.
Adult - greyish with a white head.
Widespread in the Palearctic.
Two broods a year in UK.
Birch (Betula).
Possibly an introduced species, however, BOLD samples are in two BIN groups, one being strictly North American samples and the other European.
See Also
Other species in both Swammerdamia and Paraswammerdamia. It may that dissection is required to separate species.
Print References
Duckworth, D. 1965. North American Moths of the Genus Swammerdamia (Lepidoptera: Yponomeutidae). Proceedings of the United States National Museum. 116: 549-555.
Hübner, J. 1825. Verzeichniss bekannter Schmettlinge. p. 425
Treitschke, G.F., 1833. Die schmetterlinge von Europa. 9: 97 (explanation of Swammerdamia heroldella)