Home>Factsheets > Collyer's tetranychid mite - Tetranychus collyerae

 

Collyer's tetranychid mite - Tetranychus collyerae

By N A Martin (2018)

Classification

Phylum:
Arthropoda
Class:
Arachnida
Subclass:
Acari
Order:
Trombidiformes
Suborder:
Prostigmata
Superfamily:
Tetranychoidea
Family:
Tetranychidae
Scientific Name:
Tetranychus collyerae Manson, 1967
  • Collyer's tetranychid mites, Tetranychus collyerae (Acari: Tetranychidae) on the underside of a leaf of Coastal Coprosma, Coprosma repens (Rubiaceae). Image: Nicholas A. Martin © Plant & Food Research
    Collyer's tetranychid mites, Tetranychus collyerae (Acari: Tetranychidae) on the underside of a leaf of Coastal Coprosma, Coprosma repens (Rubiaceae). Image: Nicholas A. Martin © Plant & Food Research
  • Upper side and underside of a leaf of Coastal Coprosma, Coprosma repens (Rubiaceae) with yellowing due to feeding by Collyer's tetranychid mites, Tetranychus collyerae (Acari: Tetranychidae). Image: Nicholas A. Martin © Plant & Food Research
    Upper side and underside of a leaf of Coastal Coprosma, Coprosma repens (Rubiaceae) with yellowing due to feeding by Collyer's tetranychid mites, Tetranychus collyerae (Acari: Tetranychidae). Image: Nicholas A. Martin © Plant & Food Research
Back to top

Common Names

Collyer's tetranychid mite
Back to topHelp

Biostatus and Distribution

This endemic spidermite described and named in 1967. It is mainly found on a small selection of small trees and shrubs. It is on plants in city gardens and parks as well as native ecosystems.

Conservation status: Widespread, not threatened.

Back to top

Life Stages and Annual Cycle

Life stages of Tetranychus mites. Image: Crop & Food Research © based on figure 21 in Crop & Food Research Broadsheet 112.
Life stages of Tetranychus mites. Image: Crop & Food Research © based on figure 21 in Crop & Food Research Broadsheet 112.

These mites are very small and live in colonies on the underside of young leaves. Adult female mites are about 0.42 mm long and about 0.33 mm wide. Adult males are slightly smaller and have a pointed end to their abdomen. The summer breeding adult females are a deep red or carmine. All active stages may have a darker area on each side of the abdomen. The four pairs of legs are whitish or tinted orange. Adult female mites lay pale brown spherical eggs on the underside of leaves, often by the midrib. The larva that hatches from an egg looks like a tiny adult, but only has three pairs of legs and lacks the reddish colour and has dark spots on the abdomen. The mite larva moults (changes skin) into a nymph which has four pairs of legs like the adult. The first nymphal stage moults into a second nymph. Both nymphal stages are red coloured. The last juvenile stage moults into an adult mite. Adult males mate with newly emerged adult females. The species overwinters as dormant female mites hiding away from the plant leaves.

Feeding
The mites have pointed mouth parts that puncture the surface cells of leaves. They suck out the contents of the cells. The black areas in the abdomen are part of their gut where the plant cell contents are digested.

Walking and web spinning
The mite uses its legs for walking. As they walk they produce a web from their abdomen which is attached to the leaf surface. When a dense colony forms the surface of the leaf becomes covered by webbing.

Dispersal to new leaves and new plants
When a dense colony develops or a plant leaf is no longer suitable, mites may walk to another leaf on the same branch or a nearby branch. Spidermites are also dispersed by wind. Mated female mites will climb to the top of the plant produce a strand of silk and stand waiting for a gust of wind to take them away. The mites form new colonies on the underside leaves. New colonies are often formed where there is some shelter, such as a hollow in the leaf or by the midrib.

  • Collyer's tetranychid mites, Tetranychus collyerae (Acari: Tetranychidae) on the underside of a leaf of Coastal Coprosma, Coprosma repens (Rubiaceae). Image: Nicholas A. Martin © Plant & Food Research
    Collyer's tetranychid mites, Tetranychus collyerae (Acari: Tetranychidae) on the underside of a leaf of Coastal Coprosma, Coprosma repens (Rubiaceae). Image: Nicholas A. Martin © Plant & Food Research
  • Collyer's tetranychid mites, Tetranychus collyerae (Acari: Tetranychidae) on the underside of a leaf of Coastal Coprosma, Coprosma repens (Rubiaceae): note the pale area on the leaf where the mites have been feeding. Image: Nicholas A. Martin © Plant & Food Research
    Collyer's tetranychid mites, Tetranychus collyerae (Acari: Tetranychidae) on the underside of a leaf of Coastal Coprosma, Coprosma repens (Rubiaceae): note the pale area on the leaf where the mites have been feeding. Image: Nicholas A. Martin © Plant & Food Research
  • Collyer's tetranychid mites, Tetranychus collyerae (Acari: Tetranychidae) on the underside of a leaf of Coastal Coprosma, Coprosma repens (Rubiaceae). Image: Nicholas A. Martin © Plant & Food Research
    Collyer's tetranychid mites, Tetranychus collyerae (Acari: Tetranychidae) on the underside of a leaf of Coastal Coprosma, Coprosma repens (Rubiaceae). Image: Nicholas A. Martin © Plant & Food Research
  • Collyer's tetranychid mites, Tetranychus collyerae (Acari: Tetranychidae) on the underside of a leaf of Coastal Coprosma, Coprosma repens (Rubiaceae): note the white moulted larval skins (bottom left). Image: Nicholas A. Martin © Plant & Food Research
    Collyer's tetranychid mites, Tetranychus collyerae (Acari: Tetranychidae) on the underside of a leaf of Coastal Coprosma, Coprosma repens (Rubiaceae): note the white moulted larval skins (bottom left). Image: Nicholas A. Martin © Plant & Food Research
  • Hatched and unhatched eggs of Collyer's tetranychid mites, Tetranychus collyerae (Acari: Tetranychidae) on the underside of a leaf of Mahoe, Melicytus ramiflorus (Violaceae). Image: Tim Holmes © Plant & Food Research
    Hatched and unhatched eggs of Collyer's tetranychid mites, Tetranychus collyerae (Acari: Tetranychidae) on the underside of a leaf of Mahoe, Melicytus ramiflorus (Violaceae). Image: Tim Holmes © Plant & Food Research
  • Unhatched eggs and nymphs of Collyer's tetranychid mites, Tetranychus collyerae (Acari: Tetranychidae) on the underside of a leaf of Mahoe, Melicytus ramiflorus (Violaceae): note the white moulted skins of the larvae. Image: Tim Holmes © Plant & Food Research
    Unhatched eggs and nymphs of Collyer's tetranychid mites, Tetranychus collyerae (Acari: Tetranychidae) on the underside of a leaf of Mahoe, Melicytus ramiflorus (Violaceae): note the white moulted skins of the larvae. Image: Tim Holmes © Plant & Food Research
  • Eggs and mites of Collyer's tetranychid mites, Tetranychus collyerae (Acari: Tetranychidae) on the underside of a leaf of Mahoe, Melicytus ramiflorus (Violaceae): note the small larvae with two spots (top right). Image: Tim Holmes © Plant & Food Research
    Eggs and mites of Collyer's tetranychid mites, Tetranychus collyerae (Acari: Tetranychidae) on the underside of a leaf of Mahoe, Melicytus ramiflorus (Violaceae): note the small larvae with two spots (top right). Image: Tim Holmes © Plant & Food Research
  • Eggs and mites of Collyer's tetranychid mites, Tetranychus collyerae (Acari: Tetranychidae) on the underside of a leaf of Mahoe, Melicytus ramiflorus (Violaceae). Image: Tim Holmes © Plant & Food Research
    Eggs and mites of Collyer's tetranychid mites, Tetranychus collyerae (Acari: Tetranychidae) on the underside of a leaf of Mahoe, Melicytus ramiflorus (Violaceae). Image: Tim Holmes © Plant & Food Research
  • Eggs and mites of Collyer's tetranychid mites, Tetranychus collyerae (Acari: Tetranychidae) on the underside of a leaf of Mahoe, Melicytus ramiflorus (Violaceae): note the small larvae with two spots. Image: Tim Holmes © Plant & Food Research
    Eggs and mites of Collyer's tetranychid mites, Tetranychus collyerae (Acari: Tetranychidae) on the underside of a leaf of Mahoe, Melicytus ramiflorus (Violaceae): note the small larvae with two spots. Image: Tim Holmes © Plant & Food Research
  • Eggs and mites of Collyer's tetranychid mites, Tetranychus collyerae (Acari: Tetranychidae) on the underside of a leaf of Mahoe, Melicytus ramiflorus (Violaceae): note the small larvae with two spots (top right). Image: Tim Holmes © Plant & Food Research
    Eggs and mites of Collyer's tetranychid mites, Tetranychus collyerae (Acari: Tetranychidae) on the underside of a leaf of Mahoe, Melicytus ramiflorus (Violaceae): note the small larvae with two spots (top right). Image: Tim Holmes © Plant & Food Research
Back to top

Recognition

This mite requires special procedures and taxonomic knowledge to identify specimens. However, where it is the only species of spidermite known to live on a host plant, it can be identified by its distinctive damage to leaves and the red colour of the mites. Also if two species are known to live on a host plant and the breeding adult females have a different body colour, the colonies can be identified.

On one plant, Mahoe, Melicytus ramiflorus, two species of spidermites have been found living on the leaves. The summer breeding females of Collyer's tetranychid mites are red, whereas those of the banana mite, Tetranychus lambi Pritchard & Baker, 1955, are green.

Two species of Tetranychus are known to live on another native plant, North Island broom, Carmichaelia australis. Unfortunately, the appearance of living Tetranychus eyrewellensis Manson, 1967 has not been described, so live colonies of the two species cannot be distinguished and the mites examined by a taxonomist.

Where only one species of spider mite known on a host plant, its presence can be recognised by its presence in colonies of the mites on its host plants and the pale areas on the leaves caused by mite feeding.

  • Collyer's tetranychid mites, Tetranychus collyerae (Acari: Tetranychidae) on the underside of a leaf of Coastal Coprosma, Coprosma repens (Rubiaceae). Image: Nicholas A. Martin © Plant & Food Research
    Collyer's tetranychid mites, Tetranychus collyerae (Acari: Tetranychidae) on the underside of a leaf of Coastal Coprosma, Coprosma repens (Rubiaceae). Image: Nicholas A. Martin © Plant & Food Research
  • Collyer's tetranychid mites, Tetranychus collyerae (Acari: Tetranychidae) on the underside of a leaf of Coastal Coprosma, Coprosma repens (Rubiaceae). Image: Nicholas A. Martin © Plant & Food Research
    Collyer's tetranychid mites, Tetranychus collyerae (Acari: Tetranychidae) on the underside of a leaf of Coastal Coprosma, Coprosma repens (Rubiaceae). Image: Nicholas A. Martin © Plant & Food Research
  • Underside of a leaf of Coastal Coprosma Coprosma repens (Rubiaceae) with yellowing due to feeding by a colony of Collyer's tetranychid mites, Tetranychus collyerae (Acari: Tetranychidae). Image: Nicholas A. Martin © Plant & Food Research
    Underside of a leaf of Coastal Coprosma Coprosma repens (Rubiaceae) with yellowing due to feeding by a colony of Collyer's tetranychid mites, Tetranychus collyerae (Acari: Tetranychidae). Image: Nicholas A. Martin © Plant & Food Research
  • Leaf of Coastal Coprosma Coprosma repens (Rubiaceae) with yellowing due to feeding by a colony of Collyer's tetranychid mites, Tetranychus collyerae (Acari: Tetranychidae) on the underside. Image: Nicholas A. Martin © Plant & Food Research
    Leaf of Coastal Coprosma Coprosma repens (Rubiaceae) with yellowing due to feeding by a colony of Collyer's tetranychid mites, Tetranychus collyerae (Acari: Tetranychidae) on the underside. Image: Nicholas A. Martin © Plant & Food Research
Back to top

Natural Enemies

Predators
At least three kinds of predators have been found associated with Collyer’s tetranychid mites. These are ladybirds, predatory mites and predatory fly larvae. It is likely that they are also fed on by adults and nymphs of predatory sucking bugs (Hemiptera).

The name of only one of the two predatory mites is known. Phytoseiulus persimilis (Acari: Mesostigmata: Phytoseiidae). This predatory mite comes from Southern Europe and was imported into New Zealand to assist control of two-spotted mite, Tetranychus urticae (Acari: Tetranychidae), a pest of greenhouse and outdoor crops. Adult female Phytoseiulus persimilis are bright red and larger than flax spidermites. They lay larger oval red eggs. It’s larvae, nymphs and adult males are also red.

Several species of spidermite feeding ladybirds, Stethorus (Coleoptera: Coccinellidae), are present in New Zealand. The name of those that eat Collyer’s tetranychid mites are not yet known. The adults are tiny and black. Oval eggs, white, tan or reddish are laid in mite colonies. The larvae may be white, white with dark spots or dark grey. The pupae are black.

Some fly larvae in the family Cecidomyiidae are known predators of spider mites. Larvae of an unknown species were found feeding on Collyer's tetranychid mites.

Table: Predators of Collyer's tetranychid mite, Tetranychus collyerae (Acari: Prostigmata: Tetranychidae), from Plant-SyNZ database (10 June 2018). The reliability index shows the quality of evidence for the host association (0-10, 10=high quality).
Scientific NameCommon NameClassificationEnemy TypeReliability
Index
Biostatus
Cecidomyiidae sp. 'predators' (Fly)Diptera: Cecidomyiidaepredator6unknown
Phytoseiidae sp.Tetranychid predatory mite (Mite)Acari: Mesostigmata: Phytoseiidaepredator6unknown
Phytoseiulus persimilis Athias-Henriot, 1957 (Mite)Acari: Mesostigmata: Phytoseiidaepredator9adventive
Stethorus sp.Spidermite ladybird (Beetle)Coleoptera: Coccinellidaepredator7unknown
  • Red fly larvae of a predatory cecidomyiid (Diptera: Cecidomyiidae) in a colony of Collyer's tetranychid mites, Tetranychus collyerae (Acari: Tetranychidae) on the underside of a leaf of Mahoe, Melicytus ramiflorus (Violaceae).
    Red fly larvae of a predatory cecidomyiid (Diptera: Cecidomyiidae) in a colony of Collyer's tetranychid mites, Tetranychus collyerae (Acari: Tetranychidae) on the underside of a leaf of Mahoe, Melicytus ramiflorus (Violaceae).
  • Red fly larva of a predatory cecidomyiid (Diptera: Cecidomyiidae) in a colony of Collyer's tetranychid mites, Tetranychus collyerae (Acari: Tetranychidae) on the underside of a leaf of Mahoe, Melicytus ramiflorus (Violaceae).
    Red fly larva of a predatory cecidomyiid (Diptera: Cecidomyiidae) in a colony of Collyer's tetranychid mites, Tetranychus collyerae (Acari: Tetranychidae) on the underside of a leaf of Mahoe, Melicytus ramiflorus (Violaceae).
  • Red fly larva of a predatory cecidomyiid (Diptera: Cecidomyiidae) in a colony of Collyer's tetranychid mites, Tetranychus collyerae (Acari: Tetranychidae) on the underside of a leaf of Mahoe, Melicytus ramiflorus (Violaceae).
    Red fly larva of a predatory cecidomyiid (Diptera: Cecidomyiidae) in a colony of Collyer's tetranychid mites, Tetranychus collyerae (Acari: Tetranychidae) on the underside of a leaf of Mahoe, Melicytus ramiflorus (Violaceae).
  • Nymph of a predatory phytosiid mite (Acari: Phytoseiidae) in a colony of Collyer's tetranychid mites, Tetranychus collyerae (Acari: Tetranychidae) on the underside of a leaf of Coastal Coprosma, Coprosma repens (Rubiaceae).
    Nymph of a predatory phytosiid mite (Acari: Phytoseiidae) in a colony of Collyer's tetranychid mites, Tetranychus collyerae (Acari: Tetranychidae) on the underside of a leaf of Coastal Coprosma, Coprosma repens (Rubiaceae).
  • A large predatory phytosiid mite (Acari: Phytoseiidae) in a colony of Collyer's tetranychid mites, Tetranychus collyerae (Acari: Tetranychidae) on the underside of a leaf of Coastal Coprosma, Coprosma repens (Rubiaceae).
    A large predatory phytosiid mite (Acari: Phytoseiidae) in a colony of Collyer's tetranychid mites, Tetranychus collyerae (Acari: Tetranychidae) on the underside of a leaf of Coastal Coprosma, Coprosma repens (Rubiaceae).
  • A large predatory phytosiid mite (Acari: Phytoseiidae) in a colony of Collyer's tetranychid mites, Tetranychus collyerae (Acari: Tetranychidae) on the underside of a leaf of Coastal Coprosma, Coprosma repens (Rubiaceae).
    A large predatory phytosiid mite (Acari: Phytoseiidae) in a colony of Collyer's tetranychid mites, Tetranychus collyerae (Acari: Tetranychidae) on the underside of a leaf of Coastal Coprosma, Coprosma repens (Rubiaceae).
  • A large predatory phytosiid mite (Acari: Phytoseiidae) in a colony of Collyer's tetranychid mites, Tetranychus collyerae (Acari: Tetranychidae) on the underside of a leaf of Coastal Coprosma, Coprosma repens (Rubiaceae).
    A large predatory phytosiid mite (Acari: Phytoseiidae) in a colony of Collyer's tetranychid mites, Tetranychus collyerae (Acari: Tetranychidae) on the underside of a leaf of Coastal Coprosma, Coprosma repens (Rubiaceae).
  • An adult Spidermite ladybird, Stethorus sp. (Coleoptera: Coccinellidae) in a colony of Collyer's tetranychid mites, Tetranychus collyerae (Acari: Tetranychidae) on the underside of a leaf of Mahoe, Melicytus ramiflorus (Violaceae). Image: Tim Holmes © Plant & Food Research
    An adult Spidermite ladybird, Stethorus sp. (Coleoptera: Coccinellidae) in a colony of Collyer's tetranychid mites, Tetranychus collyerae (Acari: Tetranychidae) on the underside of a leaf of Mahoe, Melicytus ramiflorus (Violaceae). Image: Tim Holmes © Plant & Food Research
  • Side view of an adult Spidermite ladybird, Stethorus sp. (Coleoptera: Coccinellidae) in a colony of Collyer's tetranychid mites, Tetranychus collyerae (Acari: Tetranychidae) on the underside of a leaf of Mahoe, Melicytus ramiflorus (Violaceae): note the setae (hairs) covering the ladybird. Image: Tim Holmes © Plant & Food Research
    Side view of an adult Spidermite ladybird, Stethorus sp. (Coleoptera: Coccinellidae) in a colony of Collyer's tetranychid mites, Tetranychus collyerae (Acari: Tetranychidae) on the underside of a leaf of Mahoe, Melicytus ramiflorus (Violaceae): note the setae (hairs) covering the ladybird. Image: Tim Holmes © Plant & Food Research
  • A pale larva of a Spidermite ladybird, Stethorus sp. (Coleoptera: Coccinellidae) in a colony of Collyer's tetranychid mites, Tetranychus collyerae (Acari: Tetranychidae) on the underside of a leaf of Mahoe, Melicytus ramiflorus (Violaceae).
    A pale larva of a Spidermite ladybird, Stethorus sp. (Coleoptera: Coccinellidae) in a colony of Collyer's tetranychid mites, Tetranychus collyerae (Acari: Tetranychidae) on the underside of a leaf of Mahoe, Melicytus ramiflorus (Violaceae).
  • Pupae and one mature brown larva of a Spidermite ladybird, Stethorus sp. (Coleoptera: Coccinellidae) in a colony of Collyer's tetranychid mites, Tetranychus collyerae (Acari: Tetranychidae) on the underside of a leaf of Mahoe, Melicytus ramiflorus (Violaceae). Image: Nicholas A. Martin © Nicholas A. Martin
    Pupae and one mature brown larva of a Spidermite ladybird, Stethorus sp. (Coleoptera: Coccinellidae) in a colony of Collyer's tetranychid mites, Tetranychus collyerae (Acari: Tetranychidae) on the underside of a leaf of Mahoe, Melicytus ramiflorus (Violaceae). Image: Nicholas A. Martin © Nicholas A. Martin
  • Pupa of a Spidermite ladybird, Stethorus sp. (Coleoptera: Coccinellidae) in a colony of Collyer's tetranychid mites, Tetranychus collyerae (Acari: Tetranychidae) on the underside of a leaf of Mahoe, Melicytus ramiflorus (Violaceae). Image: Tim Holmes © Plant & Food Research
    Pupa of a Spidermite ladybird, Stethorus sp. (Coleoptera: Coccinellidae) in a colony of Collyer's tetranychid mites, Tetranychus collyerae (Acari: Tetranychidae) on the underside of a leaf of Mahoe, Melicytus ramiflorus (Violaceae). Image: Tim Holmes © Plant & Food Research
  • Side view of a pupa of a Spidermite ladybird, Stethorus sp. (Coleoptera: Coccinellidae) in a colony of Collyer's tetranychid mites, Tetranychus collyerae (Acari: Tetranychidae) on the underside of a leaf of Mahoe, Melicytus ramiflorus (Violaceae). Image: Minna Personen © Plant & Food Research
    Side view of a pupa of a Spidermite ladybird, Stethorus sp. (Coleoptera: Coccinellidae) in a colony of Collyer's tetranychid mites, Tetranychus collyerae (Acari: Tetranychidae) on the underside of a leaf of Mahoe, Melicytus ramiflorus (Violaceae). Image: Minna Personen © Plant & Food Research
  • Pupal skins of a Spidermite ladybird, Stethorus sp. (Coleoptera: Coccinellidae) in a colony of Collyer's tetranychid mites, Tetranychus collyerae (Acari: Tetranychidae) on the underside of a leaf of Mahoe, Melicytus ramiflorus (Violaceae). Image: Nicholas A. Martin © Nicholas A. Martin
    Pupal skins of a Spidermite ladybird, Stethorus sp. (Coleoptera: Coccinellidae) in a colony of Collyer's tetranychid mites, Tetranychus collyerae (Acari: Tetranychidae) on the underside of a leaf of Mahoe, Melicytus ramiflorus (Violaceae). Image: Nicholas A. Martin © Nicholas A. Martin
  • Pupal skin and just emerged adult of a Spidermite ladybird, Stethorus sp. (Coleoptera: Coccinellidae) in a colony of Collyer's tetranychid mites, Tetranychus collyerae (Acari: Tetranychidae) on the underside of a leaf of Mahoe, Melicytus ramiflorus (Violaceae). Image: Nicholas A. Martin © Nicholas A. Martin
    Pupal skin and just emerged adult of a Spidermite ladybird, Stethorus sp. (Coleoptera: Coccinellidae) in a colony of Collyer's tetranychid mites, Tetranychus collyerae (Acari: Tetranychidae) on the underside of a leaf of Mahoe, Melicytus ramiflorus (Violaceae). Image: Nicholas A. Martin © Nicholas A. Martin
Back to topHelp

Host Plants

Collyer's tetranychid mites are found on the underside of leaves of host plants that are mainly shrubs and trees. The mites have pointed mouth parts that puncture the surface cells of flax leaves. They suck the contents of the cells. Feeding removes the green cell contents. The presence of old and active mite colonies can be recognised by the pale yellow colour of the leaf in and around mite colonies. The mites also cover the surface of the leaf with silk webbing.

Table: Host plants of the Collyer's tetranychid mite, Tetranychus collyerae (Acari: Prostigmata: Tetranychidae) from Plant-SyNZ database (10 June 2018). The reliability score shows the quality of evidence for the host association (1-10, 10=high).
Common Name(s)Scientific NameFamilyReliability IndexBiostatus
Mauri, Mauri kura, WharaAstelia sp.Asteliaceae7unknown
North Island broom, Mākaka, Maukoro, Tainoka, Tawao, MaukoroCarmichaelia australis R.Br.Leguminosae10endemic
Marble leaf, Motorbike tree, Kaiwētā, Piripiriwhata, Punawētā, Putaputawētā, PutawētāCarpodetus serratus J.R.Forst. & G.Forst.Rousseaceae10endemic
Coprosma macrocarpa Cheeseman subsp. minor A.P.Druce ex R.O.Gardner & Heads (2003)Rubiaceae10endemic
Leafy coprosmaCoprosma parviflora Hook.f.Rubiaceae10endemic
Coastal Coprosma, TaupataCoprosma repens A.Rich.Rubiaceae9endemic
Glossy karamu, Kākaramū, Kākarangū, Karamū, Kāramuramu, KarangūCoprosma robusta RaoulRubiaceae10endemic
Whiteywood, Hinahina, Inaina, Inihina, Māhoe, Moeahu, KaiwetaMelicytus ramiflorus J.R.Forst. & G.Forst.Violaceae10indigenous, non-endemic
NgaioMyoporum laetum G.Forst.Scrophulariaceae10endemic
  • Underside of a leaf of Putaputawētā, Carpodetus serratus (Rousseaceae) with a colony of Collyer's tetranychid mites, Tetranychus collyerae (Acari: Tetranychidae). Image: Nicholas A. Martin © Plant & Food Research
    Underside of a leaf of Putaputawētā, Carpodetus serratus (Rousseaceae) with a colony of Collyer's tetranychid mites, Tetranychus collyerae (Acari: Tetranychidae). Image: Nicholas A. Martin © Plant & Food Research
  • Underside of a leaf of Ngaio, Myoporum laetum (Scrophulariaceae) with a colony of Collyer's tetranychid mites, Tetranychus collyerae (Acari: Tetranychidae): note the eggs by the midrib. Image: Nicholas A. Martin © Plant & Food Research
    Underside of a leaf of Ngaio, Myoporum laetum (Scrophulariaceae) with a colony of Collyer's tetranychid mites, Tetranychus collyerae (Acari: Tetranychidae): note the eggs by the midrib. Image: Nicholas A. Martin © Plant & Food Research
  • Leaf of Coprosma macrocarpa subsp. minor (Rubiaceae) with yellowing due to a colony of Collyer's tetranychid mites, Tetranychus collyerae (Acari: Tetranychidae) on the underside. Image: Nicholas A. Martin © Plant & Food Research
    Leaf of Coprosma macrocarpa subsp. minor (Rubiaceae) with yellowing due to a colony of Collyer's tetranychid mites, Tetranychus collyerae (Acari: Tetranychidae) on the underside. Image: Nicholas A. Martin © Plant & Food Research
  • Collyer's tetranychid mites, Tetranychus collyerae (Acari: Tetranychidae) on the underside of a leaf of Coprosma macrocarpa subsp. minor (Rubiaceae). Image: Nicholas A. Martin © Plant & Food Research
    Collyer's tetranychid mites, Tetranychus collyerae (Acari: Tetranychidae) on the underside of a leaf of Coprosma macrocarpa subsp. minor (Rubiaceae). Image: Nicholas A. Martin © Plant & Food Research
  • Leaf of Coprosma macrocarpa subsp. minor (Rubiaceae) with yellowing due to a colony of Collyer's tetranychid mites, Tetranychus collyerae (Acari: Tetranychidae) on the underside. Image: Nicholas A. Martin © Plant & Food Research
    Leaf of Coprosma macrocarpa subsp. minor (Rubiaceae) with yellowing due to a colony of Collyer's tetranychid mites, Tetranychus collyerae (Acari: Tetranychidae) on the underside. Image: Nicholas A. Martin © Plant & Food Research
  • Underside of a leaf of Coastal Coprosma Coprosma repens (Rubiaceae) with yellowing due feeding by a colony of Collyer's tetranychid mites, Tetranychus collyerae (Acari: Tetranychidae). Image: Nicholas A. Martin © Plant & Food Research
    Underside of a leaf of Coastal Coprosma Coprosma repens (Rubiaceae) with yellowing due feeding by a colony of Collyer's tetranychid mites, Tetranychus collyerae (Acari: Tetranychidae). Image: Nicholas A. Martin © Plant & Food Research
  • Leaf of Coastal Coprosma Coprosma repens (Rubiaceae) with yellowing due to feeding by a colony of Collyer's tetranychid mites, Tetranychus collyerae (Acari: Tetranychidae) on the underside. Image: Nicholas A. Martin © Plant & Food Research
    Leaf of Coastal Coprosma Coprosma repens (Rubiaceae) with yellowing due to feeding by a colony of Collyer's tetranychid mites, Tetranychus collyerae (Acari: Tetranychidae) on the underside. Image: Nicholas A. Martin © Plant & Food Research
  • Underside of a leaf of Coastal Coprosma Coprosma repens (Rubiaceae) with yellowing due feeding by a colony of Collyer's tetranychid mites, Tetranychus collyerae (Acari: Tetranychidae). Image: Nicholas A. Martin © Plant & Food Research
    Underside of a leaf of Coastal Coprosma Coprosma repens (Rubiaceae) with yellowing due feeding by a colony of Collyer's tetranychid mites, Tetranychus collyerae (Acari: Tetranychidae). Image: Nicholas A. Martin © Plant & Food Research
  • Underside of leaves of Mahoe, Melicytus ramiflorus (Violaceae) with yellowing and pale areas due to feeding by Collyer's tetranychid mites, Tetranychus collyerae (Acari: Tetranychidae). Image: Nicholas A. Martin © Plant & Food Research
    Underside of leaves of Mahoe, Melicytus ramiflorus (Violaceae) with yellowing and pale areas due to feeding by Collyer's tetranychid mites, Tetranychus collyerae (Acari: Tetranychidae). Image: Nicholas A. Martin © Plant & Food Research
  • Underside of a leaf of Mahoe, Melicytus ramiflorus (Violaceae) with yellowing due to a colonies of Collyer's tetranychid mites, Tetranychus collyerae (Acari: Tetranychidae). Image: Nicholas A. Martin © Plant & Food Research
    Underside of a leaf of Mahoe, Melicytus ramiflorus (Violaceae) with yellowing due to a colonies of Collyer's tetranychid mites, Tetranychus collyerae (Acari: Tetranychidae). Image: Nicholas A. Martin © Plant & Food Research
  • Underside of a leaf of Mahoe, Melicytus ramiflorus (Violaceae) with pale areas due to a colonies of Collyer's tetranychid mites, Tetranychus collyerae (Acari: Tetranychidae): note that the pale areas are in hollows. Image: Nicholas A. Martin © Nicholas A. Martin
    Underside of a leaf of Mahoe, Melicytus ramiflorus (Violaceae) with pale areas due to a colonies of Collyer's tetranychid mites, Tetranychus collyerae (Acari: Tetranychidae): note that the pale areas are in hollows. Image: Nicholas A. Martin © Nicholas A. Martin
Back to top

Control

Occasionally large colonies of Collyer's tetranychid mite develop on the underside of leaves of host plants in native ecosystems as well as plants in modified environments such as gardens and parks. These colonies do not appear to weaken plants. Predatory mites, tiny ladybirds and larvae of predatory flies will control populations.

Back to top

Information Sources

Manson DCM. 1967. The spider mite family Tetranychidae in New Zealand. II The genus Tetranychus. Acarologia. 9: 581-597.

Manson DCM. 1967. The spider mite family Tetranychidae in New Zealand. IV Two new species of Tetranychus and a revised key to the genus. New Zealand Journal of Science. 10: 1083-1091.

Plant-SyNZ: Invertebrate herbivore-host plant association database. plant-synz.landcareresearch.co.nz/


Back to top

Acknowledgements

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

Back to top

Other Images

  • Collyer's tetranychid mites, Tetranychus collyerae (Acari: Tetranychidae) on the underside of a leaf of Mahoe, Melicytus ramiflorus (Violaceae). Image: Tim Holmes © Plant & Food Research
    Collyer's tetranychid mites, Tetranychus collyerae (Acari: Tetranychidae) on the underside of a leaf of Mahoe, Melicytus ramiflorus (Violaceae). Image: Tim Holmes © Plant & Food Research
  • Underside of a leaf of Mahoe, Melicytus ramiflorus (Violaceae) with a colony of Collyer's tetranychid mites, Tetranychus collyerae (Acari: Tetranychidae) whose feeding is making the leaf pale. Image: Tim Holmes © Plant & Food Research
    Underside of a leaf of Mahoe, Melicytus ramiflorus (Violaceae) with a colony of Collyer's tetranychid mites, Tetranychus collyerae (Acari: Tetranychidae) whose feeding is making the leaf pale. Image: Tim Holmes © Plant & Food Research
Back to top

Suggested Citation

Martin NA. 2018. Collyer's tetranychid mite - Tetranychus collyerae. Interesting Insects and other Invertebrates. New Zealand Arthropod Factsheet Series Number 139. http://nzacfactsheets.landcareresearch.co.nz/Index.html. Date Accessed. ISSN 1179-643X.

Landcare Research       Plant and Food