Caloptilia coroniella
(Clemens, 1864)
Caloptilia coroniella is a small in the Gracillariidae, known from eastern Canada and the northeastern and midwestern United States. The larvae are leaf miners that feed on birch (Betula), creating distinctive blotch mines on the leaves. are attracted to ultraviolet light and have been documented during summer moth surveys.
Pronunciation
How to pronounce Caloptilia coroniella: /ˌkæləpˈtɪliə kəˌɹoʊniˈɛlə/
These audio files are automatically generated. While they are not always 100% accurate, they are a good starting point.
Identification
As a Caloptilia , this likely has the characteristic resting posture with wings held roof-like over the body and often rolled, giving a slender, cylindrical appearance. Specific diagnostic features for C. coroniella are not documented in available sources. The is distinguished from similar small moths by the combination of wing venation and genitalia structure. Larval mines on birch leaves may help associate with this species where birch is present.
Habitat
Associated with birch (Betula) plants. Based on recorded distribution, occurs in deciduous and mixed forests, woodlands, and areas where birch grow. Specific microhabitat preferences for are not documented.
Distribution
Canada: Québec, Nova Scotia, Ontario, Alberta, British Columbia, Newfoundland and Labrador. United States: Maryland, Pennsylvania, Maine, Michigan, Connecticut, Vermont, Illinois. The Alberta, British Columbia, and Newfoundland and Labrador records from GBIF extend the range beyond the original Wikipedia description.
Seasonality
have been observed in July during National Week events. Specific period is not well documented, but likely active during summer months when birch foliage is available for larval development.
Diet
Larvae feed on Betula , including Betula nana (dwarf birch), Betula papyrifera (paper birch), Betula populifolia (gray birch), and Betula pubescens (downy birch). They mine the leaves of their plant, creating blotch mines. feeding habits are not documented.
Host Associations
- Betula nana - larval plant
- Betula papyrifera - larval plant
- Betula populifolia - larval plant
- Betula pubescens - larval plant
Life Cycle
Larvae are leaf miners on birch leaves. The complete has not been described in detail. likely occurs in the mine or in a silken cocoon on the leaf surface, as is typical for Gracillariidae.
Behavior
are and attracted to ultraviolet light sources. Larvae feed internally in birch leaves as miners.
Ecological Role
As a , larvae may cause minor damage to birch foliage. They serve as prey for and other natural enemies. Specific ecological impacts have not been quantified.
Human Relevance
Not known to be of economic importance. Occasionally encountered by citizen scientists during surveys and National Moth Week events.
Similar Taxa
- Caloptilia blandellaAnother Caloptilia with similar size and appearance; distinguished by plant association and geographic range where known
- Other Caloptilia speciesMany in the are morphologically similar and require dissection or plant association for reliable identification
More Details
Taxonomic History
Described by Clemens in 1864. The epithet 'coroniella' may refer to the crown-like markings or pattern on the wings, though this interpretation is speculative.
Citizen Science Records
Documented in iNaturalist with 105 observations as of the data retrieval date, indicating it is encountered with moderate frequency by observers in its range.