Apotomis infida
(Heinrich, 1926)
Rannoch Marble
Apotomis infida is a small tortricid with a trans-Palearctic and Nearctic distribution. have a wingspan of 17–19 mm and fly during summer months. The larvae are specialized feeders on willows (Salix spp.), including Salix purpurea, S. alba, and S. triandra. The was described by Heinrich in 1926 and has been recorded across northern Europe, Russia, and western North America.
Pronunciation
How to pronounce Apotomis infida: //ˌæpəˈtoʊmɪs ɪnˈfaɪdə//
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Identification
Distinguished from congeneric by male genitalia ; scanning electron microscopy reveals taxonomically important setae on the digitus of the male genitalia. Specific wing pattern characters require reference to illustrated keys in Peters (1986).
Images
Appearance
Small with wingspan 17–19 mm. Wing pattern details not specified in available sources; typical for Apotomis with marbled or streaked forewings.
Habitat
Associated with willow-growing ; specific habitat requirements not documented.
Distribution
Palearctic: Great Britain east to Russia, Fennoscandia south to France, Italy, and Slovakia. Nearctic: Michigan, Ontario, Quebec, Alberta, British Columbia, California, and Colorado.
Seasonality
active June to August in North America; European not specified.
Diet
Larvae feed on Salix purpurea, Salix alba, and Salix triandra.
Host Associations
- Salix purpurea - larval food plant
- Salix alba - larval food plant
- Salix triandra - larval food plant
Life Cycle
Complete with larval feeding on willow . Specific details of , pupal, and stages not documented.
Similar Taxa
- Apotomis coloradensisCongeneric described in same 1986 revision; distinguished by genitalia and wing pattern.
- Apotomis trifidaCongeneric described in same 1986 revision; distinguished by genitalia and wing pattern.
- Apotomis spurinfidaCongeneric described in same 1986 revision; distinguished by genitalia and wing pattern.
More Details
Taxonomic history
Originally described as Aphania infida by Heinrich in 1926; later transferred to Apotomis. Reviewed in comprehensive 1986 revision of Nearctic Apotomis by T. Michael Peters.
Identification resources
Peters (1986) provides descriptions, distribution maps, identification key, illustrations of male and female genitalia, and photographs of wing patterns for all Nearctic including A. infida.