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Pohuehue pocket gall mite - Eriophyes lambi

By N A Martin (2017)

Classification

Phylum:
Arthropoda
Class:
Arachnida
Subclass:
Acari
Order:
Trombidiformes
Suborder:
Prostigmata
Superfamily:
Eriophyoidea
Family:
Eriophyidae
Subfamily:
Eriophyinae
Tribe:
Eriophyini
Scientific Name:
Eriophyes lambi Manson 1965
  • Drawing of side view of pohuehue pocket gall mite, Eriophyes lambi (Acari: Eriophyidae). The adult mite is very tiny, 0.189–0.207 mm long.  Image: Dave Manson © drawing published in Fauna of New Zealand 1984, vol. 5, fig. 391.
    Drawing of side view of pohuehue pocket gall mite, Eriophyes lambi (Acari: Eriophyidae). The adult mite is very tiny, 0.189–0.207 mm long. Image: Dave Manson © drawing published in Fauna of New Zealand 1984, vol. 5, fig. 391.
  • Leaves of Muehlenbeckia complexa (Polygonaceae) with pocket galls induced by pohuehue pocket gall mite, Eriophyes lambi (Acari: Eriophyidae), upper side of leaf (left) and underside of leaf (right) with mites going in and out of gall.  Image: Nicholas A. Martin © Plant & Food Research
    Leaves of Muehlenbeckia complexa (Polygonaceae) with pocket galls induced by pohuehue pocket gall mite, Eriophyes lambi (Acari: Eriophyidae), upper side of leaf (left) and underside of leaf (right) with mites going in and out of gall. Image: Nicholas A. Martin © Plant & Food Research
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Common Names

Pohuehue pocket gall mite, Muehlenbeckia pocket gall mite
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Synonyms

Aculus lambi (Manson, 1965)
Criotacus lambi (Manson, 1965)

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Biostatus and Distribution

This endemic gall mite has been found in the North and South Islands of New Zealand on its host plants, Muehlenbeckia species (Polygonaceae). Feeding by the mites may induce pocket galls on leaves.

Conservation status: Widespread, not threatened.

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Life Stages and Annual Cycle

Life stages of Haloragis gall mite, Aceria victoriae (Acari: Eriophyidae).  Image: Nicholas A. Martin © Diagram modified from drawings published in Transactions of the Royal Society of New Zealand. 85 (3), page 462, Text-Fig. 2.
Life stages of Haloragis gall mite, Aceria victoriae (Acari: Eriophyidae). Image: Nicholas A. Martin © Diagram modified from drawings published in Transactions of the Royal Society of New Zealand. 85 (3), page 462, Text-Fig. 2.

This gall mite is very tiny. Adult mites are about 0.2 mm long. The adult mite is like a tiny white cow’s horn with two pairs of legs at the wide end of the horn. Adult female mites lay tiny spherical eggs. The larva that hatches from an egg looks like a tiny adult. The mite larva moults (changes skin) into a nymph. There is one nymphal stage that also looks like a small adult. The last juvenile stage moults into an adult mite. There are males and females.

Walking
The mite uses the legs for walking, but it can also hold on to the plant with the tip of its abdomen, which acts as a sucker.

Feeding and inducing the gall
The mites have pointed mouth parts that puncture the surface cells of young leaves and gall tissue from which they suck up the cell sap. During feeding, the mites may inject saliva into the plant. When the mites feed on young expanding leaves, leaf cells in the area multiply causing a thickening and expansion of the leaf, which forms an invagination. This expands to form a protuberance on the other side of the leaf. The sides of the invagination grow upwards and almost join, leaving a narrow opening to the gall. The mites shelter, feed and breed inside the gall. The gall protects the gall mites from predators and adverse weather.

When mites first feed on a young leaf, several may do so along the edge of an unrolling leaf. This would result in a line of pocket galls, a feature seen on some leaves. On some plants the leaf edge just rolls over and mites live in the roll.

Some plants of one species of host plant, Muehlenbeckia australis, do not develop galls when leaves are fed on by this species of mite. This indicates genetic variation in the host plant and its reaction to chemicals in the saliva of the mite.

Dispersal to new stems and new plants
When the plant grows new leaves, female mites disperse to these and their feeding induces the formation of new galls. It is presumed mites walk from the old galls and leaves to the new growths.

When this gall mite colonises new plants, it is unlikely that mites walk all the way. It is believed that most mites are dispersed by wind. Some species of mite climb to prominent places on plants and stand waiting for a gust of wind to take them away.

  • Upper side of leaf of Muehlenbeckia australis (Polygonaceae) with developing pocket galls induced by pohuehue pocket gall mite, Eriophyes lambi (Acari: Eriophyidae. Image: Nicholas A. Martin © Plant & Food Research
    Upper side of leaf of Muehlenbeckia australis (Polygonaceae) with developing pocket galls induced by pohuehue pocket gall mite, Eriophyes lambi (Acari: Eriophyidae. Image: Nicholas A. Martin © Plant & Food Research
  • Underside of leaf of Muehlenbeckia australis (Polygonaceae) with developing pocket galls induced by pohuehue pocket gall mite, Eriophyes lambi (Acari: Eriophyidae. Image: Nicholas A. Martin © Plant & Food Research
    Underside of leaf of Muehlenbeckia australis (Polygonaceae) with developing pocket galls induced by pohuehue pocket gall mite, Eriophyes lambi (Acari: Eriophyidae. Image: Nicholas A. Martin © Plant & Food Research
  • Upper side of leaf of Muehlenbeckia australis (Polygonaceae) with pocket galls induced by pohuehue pocket gall mite, Eriophyes lambi (Acari: Eriophyidae. Image: Nicholas A. Martin © Plant & Food Research
    Upper side of leaf of Muehlenbeckia australis (Polygonaceae) with pocket galls induced by pohuehue pocket gall mite, Eriophyes lambi (Acari: Eriophyidae. Image: Nicholas A. Martin © Plant & Food Research
  • Underside of leaf of Muehlenbeckia australis (Polygonaceae) with pocket galls induced by pohuehue pocket gall mite, Eriophyes lambi (Acari: Eriophyidae. Some galls appear to have been partly eaten. Image: Nicholas A. Martin © Plant & Food Research
    Underside of leaf of Muehlenbeckia australis (Polygonaceae) with pocket galls induced by pohuehue pocket gall mite, Eriophyes lambi (Acari: Eriophyidae. Some galls appear to have been partly eaten. Image: Nicholas A. Martin © Plant & Food Research
  • Opening of a pocket gall on leaf of Muehlenbeckia australis (Polygonaceae); the galls are induced by pohuehue pocket gall mite, Eriophyes lambi (Acari: Eriophyidae).  Image: Tim Holmes © Plant & Food Research
    Opening of a pocket gall on leaf of Muehlenbeckia australis (Polygonaceae); the galls are induced by pohuehue pocket gall mite, Eriophyes lambi (Acari: Eriophyidae). Image: Tim Holmes © Plant & Food Research
  • Pohuehue pocket gall mites, Eriophyes lambi (Acari: Eriophyidae), around the opening of a pocket gall on  leaf of Muehlenbeckia australis (Polygonaceae).  Image: Tim Holmes © Plant & Food Research
    Pohuehue pocket gall mites, Eriophyes lambi (Acari: Eriophyidae), around the opening of a pocket gall on leaf of Muehlenbeckia australis (Polygonaceae). Image: Tim Holmes © Plant & Food Research
  • Section through a pocket gall on leaf of Muehlenbeckia australis (Polygonaceae) showing pohuehue pocket gall mites, Eriophyes lambi (Acari: Eriophyidae), in the gall.  Image: Tim Holmes © Plant & Food Research
    Section through a pocket gall on leaf of Muehlenbeckia australis (Polygonaceae) showing pohuehue pocket gall mites, Eriophyes lambi (Acari: Eriophyidae), in the gall. Image: Tim Holmes © Plant & Food Research
  • Opening of a pocket gall on leaf of Muehlenbeckia australis (Polygonaceae) showing pohuehue pocket gall mites, Eriophyes lambi (Acari: Eriophyidae), in the gall.  Image: Tim Holmes © Plant & Food Research
    Opening of a pocket gall on leaf of Muehlenbeckia australis (Polygonaceae) showing pohuehue pocket gall mites, Eriophyes lambi (Acari: Eriophyidae), in the gall. Image: Tim Holmes © Plant & Food Research
  • Pocket gall on the underside of leaf of pohuehue, Muehlenbeckia complexa (Polygonaceae) with pohuehue pocket gall mites, Eriophyes lambi (Acari: Eriophyidae), going in and out of the opening.  Image: Nicholas A. Martin © Plant & Food Research
    Pocket gall on the underside of leaf of pohuehue, Muehlenbeckia complexa (Polygonaceae) with pohuehue pocket gall mites, Eriophyes lambi (Acari: Eriophyidae), going in and out of the opening. Image: Nicholas A. Martin © Plant & Food Research
  • Pocket galls on seen on the upper side of leaves of pohuehue, Muehlenbeckia complexa (Polygonaceae). The galls are induced by pohuehue pocket gall mite, Eriophyes lambi (Acari: Eriophyidae).  Image: Nicholas A. Martin © Plant & Food Research
    Pocket galls on seen on the upper side of leaves of pohuehue, Muehlenbeckia complexa (Polygonaceae). The galls are induced by pohuehue pocket gall mite, Eriophyes lambi (Acari: Eriophyidae). Image: Nicholas A. Martin © Plant & Food Research
  • Pohuehue pocket gall mites, Eriophyes lambi (Acari: Eriophyidae) on underside of leaf of Muehlenbeckia australis (Polygonaceae). On this and some other plants the mites do not induce galls.  Image: Nicholas A. Martin © Plant & Food Research
    Pohuehue pocket gall mites, Eriophyes lambi (Acari: Eriophyidae) on underside of leaf of Muehlenbeckia australis (Polygonaceae). On this and some other plants the mites do not induce galls. Image: Nicholas A. Martin © Plant & Food Research
  • Pohuehue pocket gall mites, Eriophyes lambi (Acari: Eriophyidae) on underside of leaf of Muehlenbeckia australis (Polygonaceae); the mites did not induce galls on this and some other plants of the species.  Image: Nicholas A. Martin © Plant & Food Research
    Pohuehue pocket gall mites, Eriophyes lambi (Acari: Eriophyidae) on underside of leaf of Muehlenbeckia australis (Polygonaceae); the mites did not induce galls on this and some other plants of the species. Image: Nicholas A. Martin © Plant & Food Research
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Recognition

This mite requires special procedures and taxonomic knowledge to identify specimens. However, its presence on a plant can be recognised by plant damage symptoms. This mite species is the only one known to induce pocket galls on leaves of Muehlenbeckia species. Pocket galls on other plants are caused by other mite species.

Leaves of some plants of Muehlenbeckia australis, have rolled edges in which eriophyid mites are living. These may also be Eriophyes lambi.

Also on, Muehlenbeckia australis, large numbers of eriophyid mites may be seen on the underside of leaves. All specimens have been identified as Eriophyes lambi. Leaves of these plants do not develop galls. However, large numbers of free living eriophyid mites may also be seen on Muehlenbeckia complexa These mites are usually associated with distorted leaves and are an unnamed species.

  • Upper side of leaf of Muehlenbeckia australis (Polygonaceae) with developing pocket galls induced by pohuehue pocket gall mite, Eriophyes lambi (Acari: Eriophyidae. Image: Nicholas A. Martin © Plant & Food Research
    Upper side of leaf of Muehlenbeckia australis (Polygonaceae) with developing pocket galls induced by pohuehue pocket gall mite, Eriophyes lambi (Acari: Eriophyidae. Image: Nicholas A. Martin © Plant & Food Research
  • Underside of leaf of Muehlenbeckia australis (Polygonaceae) with developing pocket galls induced by pohuehue pocket gall mite, Eriophyes lambi (Acari: Eriophyidae. Image: Nicholas A. Martin © Plant & Food Research
    Underside of leaf of Muehlenbeckia australis (Polygonaceae) with developing pocket galls induced by pohuehue pocket gall mite, Eriophyes lambi (Acari: Eriophyidae. Image: Nicholas A. Martin © Plant & Food Research
  • Upper side of leaf of Muehlenbeckia australis (Polygonaceae) with pocket galls induced by pohuehue pocket gall mite, Eriophyes lambi (Acari: Eriophyidae. Image: Nicholas A. Martin © Plant & Food Research
    Upper side of leaf of Muehlenbeckia australis (Polygonaceae) with pocket galls induced by pohuehue pocket gall mite, Eriophyes lambi (Acari: Eriophyidae. Image: Nicholas A. Martin © Plant & Food Research
  • Underside of leaf of Muehlenbeckia australis (Polygonaceae) with pocket galls induced by pohuehue pocket gall mite, Eriophyes lambi (Acari: Eriophyidae. Some galls appear to have been partly eaten. Image: Nicholas A. Martin © Plant & Food Research
    Underside of leaf of Muehlenbeckia australis (Polygonaceae) with pocket galls induced by pohuehue pocket gall mite, Eriophyes lambi (Acari: Eriophyidae. Some galls appear to have been partly eaten. Image: Nicholas A. Martin © Plant & Food Research
  • Pocket galls on seen on the upper side of leaves of pohuehue, Muehlenbeckia complexa (Polygonaceae). The galls are induced by pohuehue pocket gall mite, Eriophyes lambi (Acari: Eriophyidae).  Image: Nicholas A. Martin © Plant & Food Research
    Pocket galls on seen on the upper side of leaves of pohuehue, Muehlenbeckia complexa (Polygonaceae). The galls are induced by pohuehue pocket gall mite, Eriophyes lambi (Acari: Eriophyidae). Image: Nicholas A. Martin © Plant & Food Research
  • Pocket galls on the upper side of leaves of pohuehue, Muehlenbeckia complexa (Polygonaceae). The galls are induced by pohuehue pocket gall mites, Eriophyes lambi (Acari: Eriophyidae).  Image: Nicholas A. Martin © Plant & Food Research
    Pocket galls on the upper side of leaves of pohuehue, Muehlenbeckia complexa (Polygonaceae). The galls are induced by pohuehue pocket gall mites, Eriophyes lambi (Acari: Eriophyidae). Image: Nicholas A. Martin © Plant & Food Research
  • Pocket galls on the underside of leaves of pohuehue, Muehlenbeckia complexa (Polygonaceae). The galls are induced by pohuehue pocket gall mites, Eriophyes lambi (Acari: Eriophyidae).  Image: Nicholas A. Martin © Plant & Food Research
    Pocket galls on the underside of leaves of pohuehue, Muehlenbeckia complexa (Polygonaceae). The galls are induced by pohuehue pocket gall mites, Eriophyes lambi (Acari: Eriophyidae). Image: Nicholas A. Martin © Plant & Food Research
  • Underside of leaf of Muehlenbeckia australis (Polygonaceae) with rolled leaf edges possibly induced by feeding by pohuehue pocket gall mite, Eriophyes lambi (Acari: Eriophyidae. Image: Nicholas A. Martin © Plant & Food Research
    Underside of leaf of Muehlenbeckia australis (Polygonaceae) with rolled leaf edges possibly induced by feeding by pohuehue pocket gall mite, Eriophyes lambi (Acari: Eriophyidae. Image: Nicholas A. Martin © Plant & Food Research
  • Underside of leaf of Muehlenbeckia australis (Polygonaceae) with rolled leaf edges possibly induced by feeding by pohuehue pocket gall mite, Eriophyes lambi (Acari: Eriophyidae. Image: Nicholas A. Martin © Plant & Food Research
    Underside of leaf of Muehlenbeckia australis (Polygonaceae) with rolled leaf edges possibly induced by feeding by pohuehue pocket gall mite, Eriophyes lambi (Acari: Eriophyidae. Image: Nicholas A. Martin © Plant & Food Research
  • Pohuehue pocket gall mites, Eriophyes lambi (Acari: Eriophyidae) on underside of leaf of Muehlenbeckia australis (Polygonaceae); the mites did not induce galls on this and some other plants of the species.  Image: Nicholas A. Martin © Plant & Food Research
    Pohuehue pocket gall mites, Eriophyes lambi (Acari: Eriophyidae) on underside of leaf of Muehlenbeckia australis (Polygonaceae); the mites did not induce galls on this and some other plants of the species. Image: Nicholas A. Martin © Plant & Food Research
  • Pohuehue pocket gall mites, Eriophyes lambi (Acari: Eriophyidae) on underside of leaf of Muehlenbeckia australis (Polygonaceae); the mites did not induce galls on this and some other plants of the species.  Image: Nicholas A. Martin © Plant & Food Research
    Pohuehue pocket gall mites, Eriophyes lambi (Acari: Eriophyidae) on underside of leaf of Muehlenbeckia australis (Polygonaceae); the mites did not induce galls on this and some other plants of the species. Image: Nicholas A. Martin © Plant & Food Research
  • Underside of leaves of pohuehue, Muehlenbeckia complexa (Polygonaceae) with a free living unnamed eriophyid mite whose feeding can cause distorted leaves.  Image: Nicholas A. Martin © Plant & Food Research
    Underside of leaves of pohuehue, Muehlenbeckia complexa (Polygonaceae) with a free living unnamed eriophyid mite whose feeding can cause distorted leaves. Image: Nicholas A. Martin © Plant & Food Research
  • Underside of leaves of pohuehue, Muehlenbeckia complexa (Polygonaceae) with a free living unnamed eriophyid mite whose feeding can cause distorted leaves.  Image: Minna Personen © Plant & Food Research
    Underside of leaves of pohuehue, Muehlenbeckia complexa (Polygonaceae) with a free living unnamed eriophyid mite whose feeding can cause distorted leaves. Image: Minna Personen © Plant & Food Research
  • Distorted leaves of pohuehue, Muehlenbeckia complexa (Polygonaceae) caused by feeding of an unnamed free living eriophyid mite.  Image: Minna Personen © Plant & Food Research
    Distorted leaves of pohuehue, Muehlenbeckia complexa (Polygonaceae) caused by feeding of an unnamed free living eriophyid mite. Image: Minna Personen © Plant & Food Research
  • Distorted leaves of pohuehue, Muehlenbeckia complexa (Polygonaceae) caused by feeding of an unnamed free living eriophyid mite.  Image: Nicholas A. Martin © Plant & Food Research
    Distorted leaves of pohuehue, Muehlenbeckia complexa (Polygonaceae) caused by feeding of an unnamed free living eriophyid mite. Image: Nicholas A. Martin © Plant & Food Research
  • Underside of distorted leaves of pohuehue, Muehlenbeckia complexa (Polygonaceae) caused by feeding of an unnamed free living eriophyid mite.  Image: Nicholas A. Martin © Plant & Food Research
    Underside of distorted leaves of pohuehue, Muehlenbeckia complexa (Polygonaceae) caused by feeding of an unnamed free living eriophyid mite. Image: Nicholas A. Martin © Plant & Food Research
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Natural Enemies

No natural enemies of this species of mite have been recorded, but predatory mites may feed on these mites.

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Host Plants

Pohuehue gall mite, Eriophyes lambi (Acari: Eriophyidae), only lives on Muehlenbeckia species (Polypodiaceae). Mite feeding can induce pocket galls on leaves. The galls are often in straight lines, suggesting that mites were sheltering by the partly unrolled leaf when their feeding induced formation of galls.

Feeding and inducing the gall
The mites have pointed mouth parts that puncture the surface cells of young leaves and gall tissue from which they suck up the cell sap. During feeding, the mites may inject saliva into the plant. When the mites feed on young expanding leaves, leaf cells in the area multiply causing a thickening and expansion of the leaf, which forms an invagination. This expands to form a protuberance on the other side of the leaf. The sides of the invagination grow upwards and almost join, leaving a narrow opening to the gall. The mites shelter, feed and breed inside the gall. When mites first feed on a young leaf, several may do so along the edge of an unrolling leaf. This would result in a line of pocket galls, a feature seen on some leaves. On some plants the leaf edge just rolls over and mites live in the roll.

Some plants of one species of host plant, Muehlenbeckia australis, do not develop galls when leaves are fed on by this species of mite. This indicates genetic variation in the host plant and its reaction to chemicals in the saliva of the mite.

Table: Host plants of the Pohuehue pocket gall mite, Eriophyes lambi (Acari: Prostigmata: Eriophyidae) from Plant- SyNZ database (27 March 2017). The reliability score shows the quality of evidence for the host association (1-10, 10=high).
Common Name(s)Scientific NameFamilyReliability IndexBiostatus
Large-leaved muehlenbeckia, Pōhuehue, PukaMuehlenbeckia australis (G.Forst.) Meisn.Polygonaceae10indigenous, non-endemic
Creeping muehlenbeckia, Creeping pohuehue, PōhuehueMuehlenbeckia axillaris (Hook.f.) Endl.Polygonaceae10indigenous, non-endemic
Scrub pohuehue, Small-leaved pohuehue, Wire vine, Pōhue, Pōhuehue, Pōpōhue, Tororaro, WaekāhuMuehlenbeckia complexa (A.Cunn.) Meissn.Polygonaceae10indigenous, non-endemic
  • Upper side of leaf of Muehlenbeckia australis (Polygonaceae) with developing pocket galls induced by pohuehue pocket gall mite, Eriophyes lambi (Acari: Eriophyidae. Image: Nicholas A. Martin © Plant & Food Research
    Upper side of leaf of Muehlenbeckia australis (Polygonaceae) with developing pocket galls induced by pohuehue pocket gall mite, Eriophyes lambi (Acari: Eriophyidae. Image: Nicholas A. Martin © Plant & Food Research
  • Underside of leaf of Muehlenbeckia australis (Polygonaceae) with developing pocket galls induced by pohuehue pocket gall mite, Eriophyes lambi (Acari: Eriophyidae. Image: Nicholas A. Martin © Plant & Food Research
    Underside of leaf of Muehlenbeckia australis (Polygonaceae) with developing pocket galls induced by pohuehue pocket gall mite, Eriophyes lambi (Acari: Eriophyidae. Image: Nicholas A. Martin © Plant & Food Research
  • Upper side of leaf of Muehlenbeckia australis (Polygonaceae) with pocket galls induced by pohuehue pocket gall mite, Eriophyes lambi (Acari: Eriophyidae. Image: Nicholas A. Martin © Plant & Food Research
    Upper side of leaf of Muehlenbeckia australis (Polygonaceae) with pocket galls induced by pohuehue pocket gall mite, Eriophyes lambi (Acari: Eriophyidae. Image: Nicholas A. Martin © Plant & Food Research
  • Pocket galls on seen on the upper side of leaves of pohuehue, Muehlenbeckia complexa (Polygonaceae). The galls are induced by pohuehue pocket gall mite, Eriophyes lambi (Acari: Eriophyidae).  Image: Nicholas A. Martin © Plant & Food Research
    Pocket galls on seen on the upper side of leaves of pohuehue, Muehlenbeckia complexa (Polygonaceae). The galls are induced by pohuehue pocket gall mite, Eriophyes lambi (Acari: Eriophyidae). Image: Nicholas A. Martin © Plant & Food Research
  • Leaves of Muehlenbeckia complexa (Polygonaceae) with pocket galls induced by pohuehue pocket gall mite, Eriophyes lambi (Acari: Eriophyidae), upper side of leaf (left) and underside of leaf (right) with mites going in and out of gall.  Image: Nicholas A. Martin © Plant & Food Research
    Leaves of Muehlenbeckia complexa (Polygonaceae) with pocket galls induced by pohuehue pocket gall mite, Eriophyes lambi (Acari: Eriophyidae), upper side of leaf (left) and underside of leaf (right) with mites going in and out of gall. Image: Nicholas A. Martin © Plant & Food Research
  • Section through a pocket gall on leaf of Muehlenbeckia australis (Polygonaceae) showing pohuehue pocket gall mites, Eriophyes lambi (Acari: Eriophyidae), in the gall.  Image: Tim Holmes © Plant & Food Research
    Section through a pocket gall on leaf of Muehlenbeckia australis (Polygonaceae) showing pohuehue pocket gall mites, Eriophyes lambi (Acari: Eriophyidae), in the gall. Image: Tim Holmes © Plant & Food Research
  • Pohuehue pocket gall mites, Eriophyes lambi (Acari: Eriophyidae) on underside of leaf of Muehlenbeckia australis (Polygonaceae); the mites did not induce galls on this and some other plants of the species.  Image: Nicholas A. Martin © Plant & Food Research
    Pohuehue pocket gall mites, Eriophyes lambi (Acari: Eriophyidae) on underside of leaf of Muehlenbeckia australis (Polygonaceae); the mites did not induce galls on this and some other plants of the species. Image: Nicholas A. Martin © Plant & Food Research
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Additional Information

Eriophyid gall mites belong to the super family Eryiophyoidea. These mites have several unusual features. For example, though most mites have four pairs of legs like spiders, Eriophyoid mites have only two pairs of legs. Many of these mites can induce host plants to form galls, some of which may be very complex. Some species of these mites can transmit plant viruses that may cause plant diseases and plant death.

This gall mite is named after a New Zealand scientist, Dr Kenneth Lamb, who studied gall forming mites and insects during the 1950s. He discovered many kinds of galls on native plants.

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Information Sources

Lamb KP 1960. A check list of New Zealand Plant Galls (Zoocecidia). Transactions of the Royal Society of New Zealand 88(1): 121-139.

Manson DCM 1984. Eriophyinae (Arachnida: Acari: Eriophyoidea). Fauna of New Zealand 5: 1-123.

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Acknowledgements

Eric Scott for helpful suggestions.

Dr Z-Q Zhang and student for examination and identification of free living eriophyid mites on Muehlenbeckia species.

The New Zealand Plant & Food Research Institute Limited (Plant & Food Research) for permission to use photographs.

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Suggested Citation

Martin NA. 2017. Pohuehue pocket gall mite - Eriophyes lambi. Interesting Insects and other Invertebrates. New Zealand Arthropod Factsheet Series Number 83. http://nzacfactsheets.landcareresearch.co.nz/Index.html. Date Accessed. ISSN 1179-643X.

Landcare Research       Plant and Food