Anaphes nitens

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Anaphes nitens
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Mymaridae
Genus: Anaphes
Species:
A. nitens
Binomial name
Anaphes nitens
(Girault, 1928)

Anaphes nitens is a species of fairyfly, a chalcid wasp in the family Mymaridae. Native to Australia, it is an egg parasitoid of the gum tree snout beetle (Gonipterus platensis), a pest of Eucalyptus trees, and has been used in biological pest control of that species.

Contents

Description

Like other species in its genus, Anaphes nitens is a tiny insect, not more than one millimetre (0.04 in) long. The hind wings are elongated and stalked, and there are short hairs fringing both pairs of wings. [1] The head and body are black, the limbs are amber to brown and the wings are tinged with brown. [2]

Ecology

Anaphes nitens is native to southeastern Australia. The adult wasps feed on nectar and honeydew, but the larvae are carnivorous and feed on the eggs of the gum tree snout beetle (Gonipterus platensis, formerly misidentified under the name Gonipterus scutellatus). [3] Both this beetle and its larvae feed on the young leaves, buds and shoots of various species of Eucalyptus, causing a slowing of growth of the tree, a contortion of the twigs and sometimes a dieback of the branches. The female snout beetle lays batches of about ten eggs enclosed in capsules with hard shells. The female wasp deposits her eggs in the egg capsules and the developing wasp larvae feed on the snout beetle eggs inside the capsule. [4]

Eucalyptus trees are now grown in many countries around the world, and the gum tree snout beetle has been accidentally introduced with the tree, causing defoliation in plantations. This is the case in South Africa, which harbors an undescribed species of eucalyptus-feeding Gonipterus [3] and A. nitens has been introduced to the country to attempt to provide biological control of the pest. [5] In Spain, it has also been successfully used to control G. platensis. In this case, the snout beetle is found to have three main egg-laying periods, April, July and November. The April eggs are the most heavily parasitised and it has been found that the larvae of the chalcid wasps are able to diapause in the November eggs, enabling the parasitoid to endure winter conditions that are unsuitable for the survival of the adult wasps. [4]

Related Research Articles

<span class="mw-page-title-main">Chalcid wasp</span> Superfamily of wasps

Chalcid wasps are insects within the superfamily Chalcidoidea, part of the order Hymenoptera. The superfamily contains some 22,500 known species, and an estimated total diversity of more than 500,000 species, meaning the vast majority have yet to be discovered and described. The name "chalcid" is often confused with the name "chalcidid", though the latter refers strictly to one constituent family, the Chalcididae, rather than the superfamily as a whole; accordingly, most recent publications (e.g.,) use the name "chalcidoid" when referring to members of the superfamily.

<span class="mw-page-title-main">Sawfly</span> Suborder of insects

Sawflies are wasp-like insects that are in the suborder Symphyta within the order Hymenoptera, alongside ants, bees, and wasps. The common name comes from the saw-like appearance of the ovipositor, which the females use to cut into the plants where they lay their eggs. The name is associated especially with the Tenthredinoidea, by far the largest superfamily in the suborder, with about 7,000 known species; in the entire suborder, there are 8,000 described species in more than 800 genera. Symphyta is paraphyletic, consisting of several basal groups within the order Hymenoptera, each one rooted inside the previous group, ending with the Apocrita which are not sawflies.

<span class="mw-page-title-main">Apocrita</span> Suborder of insects containing wasps, bees, and ants

Apocrita is a suborder of insects in the order Hymenoptera. It includes wasps, bees, and ants, and consists of many families. It contains the most advanced hymenopterans and is distinguished from Symphyta by the narrow "waist" (petiole) formed between the first two segments of the actual abdomen; the first abdominal segment is fused to the thorax, and is called the propodeum. Therefore, it is general practice, when discussing the body of an apocritan in a technical sense, to refer to the mesosoma and metasoma rather than the "thorax" and "abdomen", respectively. The evolution of a constricted waist was an important adaption for the parasitoid lifestyle of the ancestral apocritan, allowing more maneuverability of the female's ovipositor. The ovipositor either extends freely or is retracted, and may be developed into a stinger for both defense and paralyzing prey. Larvae are legless and blind, and either feed inside a host or in a nest cell provisioned by their mothers.

<span class="mw-page-title-main">Fairyfly</span> Family of wasps

The Mymaridae, commonly known as fairyflies or fairy wasps, are a family of chalcidoid wasps found in temperate, subtropical, and tropical regions throughout the world. The family contains around 100 genera with 1,400 species.

<span class="mw-page-title-main">Parasitoid wasp</span> Group of wasps

Parasitoid wasps are a large group of hymenopteran superfamilies, with all but the wood wasps (Orussoidea) being in the wasp-waisted Apocrita. As parasitoids, they lay their eggs on or in the bodies of other arthropods, sooner or later causing the death of these hosts. Different species specialise in hosts from different insect orders, most often Lepidoptera, though some select beetles, flies, or bugs; the spider wasps (Pompilidae) exclusively attack spiders.

<span class="mw-page-title-main">Gonipterini</span> Tribe of beetles

Gonipterini is a tribe of weevils in the subfamily Curculioninae.

<span class="mw-page-title-main">Wasp</span> Group of insects

A wasp is any insect of the narrow-waisted suborder Apocrita of the order Hymenoptera which is neither a bee nor an ant; this excludes the broad-waisted sawflies (Symphyta), which look somewhat like wasps, but are in a separate suborder. The wasps do not constitute a clade, a complete natural group with a single ancestor, as bees and ants are deeply nested within the wasps, having evolved from wasp ancestors. Wasps that are members of the clade Aculeata can sting their prey.

<i>Abantiades latipennis</i> Species of moth

Abantiades latipennis, known as the Pindi moth, is a species of moth in the family Hepialidae. It may also be referred to as a swift moth or a ghost moth, as this is a common name associated with Hepialidae. Endemic to Australia and identified in 1932, it is most populous in temperate rainforest where eucalypti are prevalent, as the larvae feed primarily on the roots of these trees. Females lay eggs during flight in a scattering fashion. The larvae live for over eighteen months underground, while adult moths survive for approximately one week, as they have no mouthparts with which to feed. The moths are preyed upon by a number of predators, including bats and owls. Brown in colour overall, males are paler and the identifying silver bars of the male's wings are more prominent than those of the female's, with dark margins. Male adults are generally smaller.

<i>Leptocybe invasa</i> Species of wasp

Leptocybe invasa, the blue gum chalcid wasp or eucalyptus gall wasp, is a chalcid wasp which is the only species in the monotypic genus Leptocybe in the subfamily Tetrastichinae, of the family Eulophidae. It is a gall wasp which causes the formation of galls on a number of species of Eucalyptus, it was described in 2004 after galls were found in river red gums in the Mediterranean and Middle East and has since been found to be a widespread species where its host trees are planted. It is indigenous to Australia.

<i>Gonipterus gibberus</i> Species of beetle

Gonipterus gibberus is a species of weevil in the family Curculionidae. It is commonly known as the eucalyptus snout beetle, the eucalyptus weevil or the gum tree weevil. It feeds and breeds on Eucalyptus trees and is endemic to Australia.

Gonipterus scutellatus is a species of weevil in the family Curculionidae. It is commonly known as the eucalyptus snout beetle, the eucalyptus weevil or the gum tree weevil. It feeds and breeds on Eucalyptus trees and is endemic to Australia.

<i>Gonipterus</i> Genus of beetles

Gonipterus is a genus of weevils in the family Curculionidae. There are approximately 20 described species in the genus, most of which are native to Australia. They are all plant feeders and many are specific to a single host species. Gonipterus platensis, Gonipterus pulverulentus, and an undescribed species infest a number of species of Eucalyptus and have spread to other parts of the world where these trees have been planted.

<i>Ophelimus maskelli</i> Species of wasp

Ophelimus maskelli is a species of chalcid wasp about 1mm long, known as the eucalyptus gall wasp, indigenous to Australia and New Zealand, and invasive in the Mediterranean, the Middle East, North Africa, South Africa, tropical Asia, and the United States (California). It is considered a plant pest as females lay eggs on immature eucalyptus leaves; the larvae produce galls on the leaves. Heavy infestations induce much galling which causes widespread defoliation and loss of growth. Wasps may emerge in large numbers in the spring, forming clouds which are a nuisance to humans.

Listronotus oregonensis, the carrot weevil, is a species of weevil in the beetle family Curculionidae. It is found in North America.

<i>Netelia producta</i> Species of wasp

Netelia producta is a species of ichneumonid wasp in the subfamily Tryphoninae found in Australia.

<i>Megischus</i> Genus of insects

Megischus is a genus of crown-wasps in the parasitoid family Stephanidae. There are over 90 species globally distributed throughout the Neotropical, Palearctic, Afrotropical, Oriental, Australasian, and Oceanian zoogeographical regions.

Oomyzus gallerucae is a species of chalcid wasp in the family Eulophidae. It is a parasitoid of the elm leaf beetle. The adults and larvae eat the eggs of the beetle.

Enoggera is a genus of wasp in the Pteromalidae family. It is native to Australia and has five known species. It was introduced to South Africa to serve as biological pest-control against the Eucalyptus destroying beetle, Trachymela tincticollis.

<i>Gonipterus platensis</i> Species of beetle

Gonipterus platensis is a species of weevil in the family Curculionidae. It is commonly known as the eucalyptus snout beetle, the eucalyptus weevil or the gum tree weevil. It feeds and breeds on Eucalyptus trees and is endemic to Australia, though it is also found in New Zealand, North America, Hawaii, and western Europe.

Gonipterus pulverulentus is a species of weevil in the family Curculionidae. It is commonly known as the eucalyptus snout beetle, the eucalyptus weevil or the gum tree weevil. It feeds and breeds on Eucalyptus trees and is endemic to Australia, though it is also found in South America.

References

  1. "Identification: Natural Enemies Gallery: Anaphes spp.". How to manage pests. UC:IPM. Retrieved 2015-07-29.
  2. Huber, J.T.; Prinsloo, G.L. (2007). "Redescription of Anaphes nitens (Girault) and description of two new species of Anaphes Haliday (Hymenoptera: Mymaridae), parasites of Gonipterus scutellatus Gyllenhal (Coleoptera: Curculionidae) in Tasmania". Australian Journal of Entomology. 29 (4): 333–341. doi:10.1111/j.1440-6055.1990.tb00373.x.
  3. 1 2 Mapondera, T.S., Burgess, T., Matsuki, M. and Oberprieler, R.G. (2012), Identification and molecular phylogenetics of the cryptic species of the Gonipterus scutellatus complex (Coleoptera: Curculionidae: Gonipterini). Australian Journal of Entomology, 51: 175-188. https://doi.org/10.1111/j.1440-6055.2011.00853.x
  4. 1 2 Santolamazza-Carbone, Serena; Nieto, Montserrat Pestaña; Otero, Rosa Pérez; Vázquez, Pedro Mansilla; Rivera, Adolfo Cordero (2009). "Winter and spring ecology of Anaphes nitens, a solitary egg-parasitoid of the Eucalyptus snout-beetle Gonipterus scutellatus". Biocontrol. 54 (2): 195–209. Bibcode:2009BioCo..54..195S. doi:10.1007/s10526-008-9184-7. S2CID   46061478.
  5. Tribe, G.D. (2005). "The present status of Anaphes nitens (Hymenoptera: Mymaridae), an egg parasitoid of the Eucalyptus snout beetle Gonipterus scutellatus, in the Western Cape Province of South Africa". The Southern African Forestry Journal. 203 (1): 49–54. doi:10.2989/10295920509505218. S2CID   84349040.