Phyllonorycter mildredae
Davis & Deschka, 2001
A small leaf-mining in the , described in 2001. have 2.4–3 mm in length. The is likely more widespread than current records indicate, with confirmed reports from Washington D.C., Kentucky, and Ohio. create blotch mines on leaves of poplars and willows.
Pronunciation
How to pronounce Phyllonorycter mildredae: //ˌfɪl.oʊnəˈrɪktər ˈmɪldrədi//
These audio files are automatically generated. While they are not always 100% accurate, they are a good starting point.
Identification
The small length (2.4–3 mm) places this among the smallest Phyllonorycter . Positive identification requires examination of or molecular analysis, as external is similar to . The combination of association (Populus and Salix species) and eastern U.S. distribution may aid in narrowing possibilities, but definitive identification is not possible from appearance alone.
Appearance
measure 2.4–3 mm in length. As a member of Phyllonorycter, are small with narrow, typical of the . Specific coloration and pattern details are not documented in available sources.
Habitat
Associated with stands of trees: poplar (Populus alba), gray poplar (Populus canescens), bigtooth aspen (Populus grandidentatum), and various willow (Salix) . Specific preferences beyond host presence are not documented.
Distribution
Currently recorded from Washington D.C., Kentucky, and Ohio. Described as probably widespread through the eastern United States. GBIF records additionally list Florida and Oklahoma, though these may require verification.
Seasonality
are active from April to early May, July, and September. The pattern suggests a single per year with adults .
Diet
feed as on Populus alba, Populus canescens, Populus grandidentatum, and Salix . They create blotch mines on the leaves of these plants. feeding habits are not documented.
Host Associations
- Populus alba - larval poplar
- Populus canescens - larval gray poplar
- Populus grandidentatum - larval bigtooth aspen
- Salix - larval willow
Life Cycle
One per year is probable. overwinter. Larval development occurs within leaf mines on plants. Specific details of and timing are not documented.
Behavior
are and attracted to light. are , feeding internally within leaf tissue rather than externally chewing foliage.
Ecological Role
As a , create localized damage to foliage. The ecological significance of this in natural systems is not quantified. The contributes to the diverse of associated with Populus and Salix.
Human Relevance
No documented economic importance. Not known to be a significant pest of ornamental or timber poplars and willows. The is too recently described and poorly known for assessment of status.
Similar Taxa
- Other Phyllonorycter speciesNumerous share similar size, shape, and mining habit on Populus and Salix. Reliable separation requires examination or .
- Cameraria speciesAlso on Populus, but typically create serpentine mines rather than blotch mines; often have more distinct patterning.
More Details
Taxonomic history
Described by Davis & Deschka in 2001, making it a relatively recently recognized . This recency of description likely contributes to its sparse distribution records and suggests the species may be underreported rather than genuinely rare.
Research needs
Basic biological information including complete , larval details, site, and precise geographic range remain undocumented. Verification of GBIF records from Florida and Oklahoma would clarify distribution.