Acleris implexana
(Walker, 1863)
Acleris implexana is a small tortricid with a wingspan of 13–14 mm, distributed across regions of Europe and North America. are active in late summer and autumn, with larvae feeding on Pinus and Salix . A notable ecological association involves larvae feeding within pine cone willow galls induced by the gall midge Rabdophaga strobiloides. The species is represented by two recognized : A. i. implexana in North America and A. i. ferrumixtana in Europe.
Pronunciation
How to pronounce Acleris implexana: //əˈklɛɹɪs ɪmplɛkˈsɑːnə//
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Identification
Distinguished from other Acleris by combination of small size (13–14 mm wingspan), late-season activity (August–October), and association with Pinus and Salix . Specific diagnostic morphological features for separation from not documented in available sources.
Images
Appearance
Small with wingspan of 13–14 mm. Specific coloration and pattern details not documented in available sources.
Habitat
Associated with coniferous and riparian supporting plants Pinus and Salix. Larval habitat includes pine cone willow galls formed by Rabdophaga strobiloides.
Distribution
and subarctic regions: Norway, Sweden, Finland, Russia; North America from Quebec to British Columbia and adjacent United States.
Seasonality
active from late August to October. Larval stage timing not specified in available sources.
Diet
Larvae feed on leaves of Pinus and Salix . Larvae have been recorded feeding within pine cone willow galls caused by Rabdophaga strobiloides.
Host Associations
- Pinus - larval food plantlarvae feed on leaves
- Salix - larval food plantlarvae feed on leaves
- Rabdophaga strobiloides - indirect associationlarvae feed within galls induced by this gall midge
Ecological Role
Herbivore on Pinus and Salix. Facultative or associate in galls of Rabdophaga strobiloides.
Similar Taxa
- Other Acleris speciesMany Acleris share small size and general tortricid ; specific diagnostic features for A. implexana not well documented
More Details
Subspecies
Two recognized: Acleris implexana implexana (North America) and Acleris implexana ferrumixtana Benander, 1934 (Europe).