Phratora interstitialis
Mannerheim, 1853
Phratora interstitialis is a leaf beetle in the Chrysomelidae, first described by Mannerheim in 1853. It has a Holarctic distribution, occurring in Europe, Northern Asia (excluding China), and North America. The is specialized in feeding on willows (Salix) that are poor in salicylates, including Salix alexensis and Salix sitchensis. It is closely related to the European Phratora vulgatissima, which shares similar plant preferences.
Pronunciation
How to pronounce Phratora interstitialis: //frəʊˈtɔːrə/ /ˌɪntərstɪˈtɪəlɪs//
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Identification
Closely related to Phratora vulgatissima; distinguishing features between these two require detailed examination. The Phratora contains species that are generally small, oval leaf beetles with metallic coloration.
Images
Habitat
Associated with willow (Salix) plants in where salicylate-poor willow occur.
Distribution
Europe; Northern Asia (excluding China); North America, including British Columbia, Canada.
Diet
Feeds on plants poor in salicylates, specifically Salix alexensis and Salix sitchensis.
Host Associations
- Salix alexensis - plantsalicylate-poor willow
- Salix sitchensis - plantsalicylate-poor willow
Similar Taxa
- Phratora vulgatissimaClosely related European with similar , also feeding on salicylate-poor willows; requires careful examination to distinguish.
More Details
Chemical ecology
The specialization on salicylate-poor willows distinguishes this from other Phratora that feed on salicylate-rich , representing a distinct host plant strategy within the .