Tischeria ceanothi
Walsingham, 1890
Tischeria ceanothi is a small in the Tischeriidae, first described by Walsingham in 1890. The is restricted to California and Nevada in the western United States. Its larvae are leaf miners that feed exclusively on species of Ceanothus (Rhamnaceae), creating distinctive mines in plant foliage.
Pronunciation
How to pronounce Tischeria ceanothi: /tɪˈʃɛɹiə siəˈnoʊθaɪ/
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Identification
As a member of Tischeriidae, this can be recognized by the traits of small size and narrow, wings with reduced venation. Specific identification requires examination of genitalia or association with plant mines. The larval mines on Ceanothus leaves are diagnostic when combined with geographic location.
Habitat
Associated with stands of Ceanothus in chaparral, coastal scrub, and montane forest of California and Nevada.
Distribution
Known from California and Nevada, United States. Records are concentrated in regions where Ceanothus occur.
Diet
Larvae feed on Ceanothus crassifolius, Ceanothus divaricatus, Ceanothus integerrimus, Ceanothus thyrsiflorus, and Ceanothus velutinus. do not feed.
Host Associations
- Ceanothus crassifolius - larval
- Ceanothus divaricatus - larval
- Ceanothus integerrimus - larval
- Ceanothus thyrsiflorus - larval
- Ceanothus velutinus - larval
Life Cycle
Larvae mine leaves of Ceanothus . Specific details of , timing, and number of per year have not been documented.
Behavior
Larvae create blotch or serpentine mines in leaves, feeding internally between epidermal layers. Mining is characteristic of the Tischeriidae.
Ecological Role
As a , larvae function as primary consumers of Ceanothus foliage. The is part of a specialized herbivore associated with this plant in western North American shrubland .
Similar Taxa
- Other Tischeria speciesMany Tischeria are leaf miners with similar ; plant association and geographic range are critical for distinguishing T. ceanothi.
- Other Tischeriidae genera such as Coptotriche may mine Ceanothus leaves; examination of mine and genitalia is required for definitive identification.
More Details
Taxonomic note
The specific epithet 'ceanothi' reflects the obligate association with Ceanothus plants, a naming convention common in herbivores.