Pseudosciaphila duplex
(Walsingham, 1895)
Poplar Leafroller Moth, Aspen Leaftier, Spotted Aspen Leafroller
Pseudosciaphila duplex is a to North America, commonly known as the poplar moth or aspen leaftier. are active during summer months and possess a wingspan of 20–25 mm. The is notable for its larval association with deciduous trees in the Populus, Betula, and Salix, where feed on leaves.
Pronunciation
How to pronounce Pseudosciaphila duplex: /sjuːdoʊsaɪəˈfɪlə ˈdjuːplɛks/
These audio files are automatically generated. While they are not always 100% accurate, they are a good starting point.
Identification
Distinguished from similar by the specific pattern referenced in its specific epithet 'duplex,' indicating a double or paired marking. The combination of small size (20–25 mm wingspan), mottled with darker markings, and association with Populus, Betula, or Salix plants aids identification. Larval on these hosts is also diagnostic.
Images
Appearance
have a wingspan of 20–25 mm. The display a mottled pattern with darker markings, typical of many olethreutine . The specific epithet 'duplex' refers to a double or paired marking pattern visible on the . are that construct shelters by tying leaves together with .
Habitat
Associated with deciduous forests and woodlands containing trees in the Populus (poplars, aspens), Betula (birches), and Salix (willows). Occurs in riparian corridors, forest edges, and open woodlands across its range.
Distribution
North America, from Quebec and New England westward to northern California and British Columbia. Records exist from Canadian provinces including Alberta, Manitoba, and Saskatchewan, and from Vermont in the United States.
Seasonality
are on from June to August. Larval activity presumably occurs earlier in the growing season, coinciding with leaf development of trees.
Diet
feed on leaves of Populus (poplar/aspen), Betula (birch), and Salix (willow) . do not feed.
Host Associations
- Populus - larval aspen, poplar
- Betula - larval birch
- Salix - larval willow
Life Cycle
with , larval, pupal, and stages. are leaf-rollers that construct shelters by tying leaves together with , feeding on the enclosed foliage. presumably occurs within the larval shelter or in leaf litter. Adults emerge in summer.
Behavior
exhibit , constructing -tied leaf shelters for feeding and protection. are and attracted to light.
Ecological Role
in deciduous forest ; larval feeding on leaves of Populus, Betula, and Salix contributes to and may influence . Serves as for various including birds, , and predatory .
Human Relevance
Minor economic significance as a defoliator of ornamental and timber trees in the Populus, Betula, and Salix. Not considered a major pest. Of interest to and naturalists.
Similar Taxa
- Other Pseudosciaphila speciesCongeneric may share similar size, pattern, and associations; precise identification requires examination of or molecular markers
- Other Olethreutini leafrollersMany in the tribe Olethreutini exhibit similar larval and association with deciduous trees; pattern and distinguish P. duplex
More Details
Taxonomic History
Described by Walsingham in 1895. The specific epithet 'duplex' refers to the double or paired markings characteristic of this .
Collection Records
Over 1,700 observations recorded on iNaturalist, indicating it is relatively well-documented and not rare within its range.