Acalitus stenaspis

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Acalitus stenaspis
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Chelicerata
Class: Arachnida
Family: Eriophyidae
Genus: Acalitus
Species:
A. stenaspis
Binomial name
Acalitus stenaspis
(Nalepa, 1891)  [1]
Synonyms
List
    • Phytoptus stenaspisNalepa, 1891
    • Eriophyes blastophthirusNalepa, 1917
    • Acalitus blastophthirus
    • Cecydoptes blastophthirus
    • Cecydoptes stenaspis

Acalitus stenaspis is an eriophyid mite which causes galls on beech ( Fagus species). It is found in Europe and was first described by the Austrian zoologist Alfred Nalepa in 1891.

Description of the gall

Acalitus stenaspis causes three different galls on beech. In spring leaves may be stunted, thickly covered in silver-grey hairs, and may be folded with wavy veins and contain mites. [2]

The gall most associated with this species is the edge of the leaf curling upwards and forming a very tight roll, which is often overlooked. During the summer, numerous mites live inside the gall feeding on a mass of tiny hairs. The roll is pale green or yellow. They leave the gall before leaf fall and spend the winter in the dormant buds. [3] In Scotland downward rolls have been found which may be caused by the same species. [2] [4]

A third gall may be buds that grow up to 3 cm long; the shoot becomes disfigured and the leaves are wavy, have an irregular venation and are covered in long hairs. If the shoot overcomes the mite, younger leaves appear normal. [5]

Most literature and websites refer to galls recorded mainly on beech ( Fagus sylvatica ). Galls have also been recorded on Crimean beech Fagus × taurica. [5]

Inquilines

Arthrocnodax gemmarum is an Inquiline which lives in the gall alongside the gall-causer, [6]

Distribution

Found in Europe, including Bosnia and Herzegovina, Croatia, Czech Republic, Denmark, France, Germany, Great Britain, Ireland, Italy, Kosovo, Latvia, Lithuania, Montenegro, North Macedonia, Poland, Serbia, Spain and Switzerland. [1]

Related Research Articles

<i>Acalitus</i> Genus of mites

Acalitus is a genus of mites in the family Eriophyidae. These cosmopolitan, microscopic arthropods form galls on various plants, and some species such as Acalitus essigi and Acalitus vaccinii are pests of agricultural significance associated with berry crops. This genus includes the following species:

<i>Phytoptus avellanae</i> Species of mite

Phytoptus avellanae is an acarine gall-mite species inducing big bud galls of up to 10 millimetres (0.39 in) across, sometimes slightly open, on the buds of hazel and on filbert. Synonyms include Phytocoptella avellanae, Eriophyes avellanae, Calycophthora avellanae, Phytoptus coryli, Phytoptus pseudogallarum, and Acarus pseudogallarum. The mites are white, about 0.3 mm long, with numerous tergites and sternites. Two forms of P. avellanae exist, a gall causer and a vagrant form that has a more complex life-cycle and does not form galls.

<i>Aceria fraxinivora</i> Species of mite

Aceria fraxinivora, also known as the cauliflower gall mite and the ash key gall, causes the growths, known as galls, found on the hanging seeds or "keys" of the ash (Fraxinus) species.

<i>Aceria erinea</i> Species of mite

Aceria erinea is a species of mite which causes galls on the leaves of walnut. It was first described by Alfred Nalepa in 1891.

<i>Hartigiola annulipes</i> Species of fly

Hartigiola annulipes is a species of midge fly in the family Cecidomyiidae, found in the Palearctic. The fly was first described by Theodor Hartig in 1839. The larvae gall the leaves of beech.

Aculus gemmarum is a species of mite which causes galls on the buds of willows. It was first described by Alfred Nalepa in 1892.

<i>Aculus craspedobius</i> Species of mite

Aculus craspedobius is a species of mite which causes galls on the leaves of willows. It was first described by Alfred Nalepa in 1925.

<i>Aculus magnirostris</i> Species of mite

Aculus magnirostris is a species of mite which causes galls on the leaves of willows. It was first described by Alfred Nalepa in 1892.

<i>Aculus truncatus</i> Species of mite

Aculus truncatus is a species of mite which causes galls on the leaves of purple willow. It was first described by Alfred Nalepa in 1892.

<i>Aculus tetanothrix</i> Species of mite

Aculus tetanothrix is a species of mite which causes galls on the leaves of willows. It was first described by Alfred Nalepa in 1889.

<i>Aculus laevis</i> Species of mite

Aculus laevis is a species of mite which causes galls on the leaves of sallows. It was first described by Alfred Nalepa in 1892.

Aceria iteina is a species of mite which causes galls on the leaves of sallows and their hybrids. It was first described by Alfred Nalepa in 1925.

<i>Phyllocoptes goniothorax</i> Species of mite

Phyllocoptes goniothorax is a species of mite belonging to the genus Phyllocoptes, which causes galls on the leaves of hawthorns. It was first described by Alfred Nalepa in 1889.

<i>Acalitus brevitarsus</i> Species of mite

Acalitus brevitarsus is an eriophyid mite which induces domed, blister like swellings, known as galls, on some species of alder.

<i>Eriophyes laevis</i> Species of mite

Eriophyes laevis is a gall mite which makes small, pimple-like galls on the leaves of alder. The mite was first described by the Austrian zoologist, Alfred Nalepa in 1889 and is found in Europe and North America.

Phyllocoptes malinus, also known as the apple leaf mite, is a species of mite belonging to the genus Phyllocoptes. It causes a gall, which is a swelling on the external tissues, on the leaves of apples. The mite is found in Europe and was first described by the Austrian zoologist Alfred Nalepa in 1892.

Acalitus plicans is an eriophyid mite which causes galls on beech. It is found in Europe and was first described by the Austrian zoologist Alfred Nalepa in 1917.

<i>Aceria nervisequa</i> Species of mite

Aceria nervisequa is a species of mite that belongs to the family Eriophyidae. It is found in Europe and was first described by Giovanni Canestrini in 1891. The mite causes galls on the leaves of beech,

Acalitus calycophthirus is an eriophyid mite which causes big bud galls on birch twigs. It is found in Europe and was first described by the Austrian zoologist, Alfred Nalepa in 1891.

<i>Epitrimerus trilobus</i> Species of mite

Epitrimerus trilobus is a gall mite in the family Eriophyidae, found in Europe. The mites feed on the leaves of elder (Sambucus species), causing abnormal plant growths known as galls. The mite was described by the Austrian zoologist, Alfred Nalepa in 1891.

References

  1. 1 2 "Acalitus stenaspis (Nalepa, 1891)". Fauna Europaea. Retrieved 11 February 2021.
  2. 1 2 Redfern, Margaret; Shirley, Peter; Boxham, Michael (2011). British Plant Galls (Second ed.). Shrewsbury: Field Study Council. p. 110. ISBN   978-185153-284-1.
  3. Chinery, Michael (2011). Britain's Plant Galls. Old Basing, Hampshire: WILDGuides Ltd. p. 35. ISBN   978-190365743-0.
  4. Zúbrik, Milan; Kunca, Andrej; Csóka, György (2013). Insect and Diseases damaging trees and shrubs of Europe. NAP Editions. p. 108. ISBN   978-2-913688-18-6.
  5. 1 2 Ellis, W N. "Acalitus stenaspis (Nalepa, 1891)". Plant Parasites of Europe. Retrieved 11 February 2021.
  6. Ellis, W N. "Arthrocnodax gemmarum Kieffer, 1895". Plant Parasites of Europe. Retrieved 11 February 2021.

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