Acalitus brevitarsus
The inducer of this gall is unknown or undescribed.
Family: Eriophyidae | Genus: Acalitus
Hosts: Alnus cordata / Alnus glutinosa / Alnus incana / Alnus pubescens / Alnus rugosa / Alnus viridis
Detachable: integral
Color: orange, white, yellow
Texture: erineum
Abundance:
Shape:
Season:
Related:
Alignment: integral
Walls:
Location: lower leaf, between leaf veins
Form: leaf blister
Cells: not applicable
Possible Range:i
Common Name(s):
Synonymy: 
Our ID Notes may contain important tips necessary for distinguishing this gall from similar galls and/or important information about the taxonomic status of this gall inducer.
Amrine Catalog
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Acalitus brevitarsus
Erineum alneum
Phytoptus purpureum
Phyllerium alnigenum
Phytoptus brevitarsus
Hosts: Alnus glutinosa, cordata, hirsuta, incana, incana ssp. rugosa, pubescens, rugosa, viridis
Relationship: Erineum patches, white to yellow and orange, on leaf undersides
Range: WV, Europe
Host associations with other non-Alnus plants are probably missidentifications, such as Betula, Juglans, etc. Erineum on alder in the USA may be caused by a different species from Acalitus brevitarsus in Europe.
”- James Amrine: (2019) Amrine Catalog©
Further Information:
Pending...
See Also:
