Aceria fraxini, the ash bead gall mite, is a species of mites in the family Eriophyidae, the gall mites.[1][2]

Aceria fraxini
galls on a leaf, upperside
galls on a leaf, underside
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Chelicerata
Class: Arachnida
Family: Eriophyidae
Genus: Aceria
Species:
A. fraxini
Binomial name
Aceria fraxini
(Garman, 1883)

Ecology

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Range is North America, including southern Canada and most of the continental United States.[2]

Mites form numerous capsule galls, greenish-yellow in color, between leaf veins of Ash trees in the genus Fraxinus, including Fraxinus americana, Fraxinus latifolia, Fraxinus nigra, and Fraxinus pennsylvanica.[3][4] The mites stay in the galls until late summer when host leaves mature.[5]: 50 

The life cycle is a form of alternation of generations. An over-wintering generation consists only of females called deutogynes. The other generation consists of both sexes: females called protogynes as well as males.[5]: 6 

References

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  1. ^ "Aceria fraxini (Ash Bead Gall Mite)". iNaturalist. California Academy of Sciences.
  2. ^ a b "Aceria fraxini (Garman, 1883)". Global Biodiversity Information Facility.
  3. ^ "Species Aceria fraxini". BugGuide.net.
  4. ^ "Aceria fraxini". Gallformers.
  5. ^ a b Keifer HH, Baker EW, Kono T, Delfinado M, Styer WE (1982). An Illustrated Guide to Plant Abnormalities Caused by Eriophyid Mites in North America (Agriculture Handbook Number 573). USDA Agricultural Research Service.