| Syntretus | |
|---|---|
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Hymenoptera |
| Family: | Braconidae |
| Subfamily: | Euphorinae |
| Tribe: | Syntretini |
| Genus: | Syntretus Foerster, 1862 [1] |
| Species | |
Several, including: | |
| Synonyms | |
| |
Syntretus is a genus of parasitoid wasps. Most parasitize adult hymenopterans, though one species ( Syntretus perlmani ) parasitizes adult Drosophila fruit flies. [2]
In evolutionary ecology, a parasitoid is an organism that lives in close association with its host at the host's expense, eventually resulting in the death of the host. Parasitoidism is one of six major evolutionary strategies within parasitism, distinguished by the fatal prognosis for the host, which makes the strategy close to predation.
The Ichneumonidae, also known as ichneumon wasps, ichneumonid wasps, ichneumonids, or Darwin wasps, are a family of parasitoid wasps of the insect order Hymenoptera. They are one of the most diverse groups within the Hymenoptera with roughly 25,000 species described as of 2016. However, this likely represents less than a quarter of their true richness as reliable estimates are lacking, along with much of the most basic knowledge about their ecology, distribution, and evolution. It is estimated that there are more species in this family than there are species of birds and mammals combined. Ichneumonid wasps, with very few exceptions, attack the immature stages of holometabolous insects and spiders, eventually killing their hosts. They thus fulfill an important role as regulators of insect populations, both in natural and semi-natural systems, making them promising agents for biological control.
The Braconidae are a family of parasitoid wasps. After the closely related Ichneumonidae, braconids make up the second-largest family in the order Hymenoptera, with about 17,000 recognized species and many thousands more undescribed. One analysis estimated a total between 30,000 and 50,000, and another provided a narrower estimate between 42,000 and 43,000 species.
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.
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.
Dinocampus coccinellae is a braconid wasp parasite of coccinellid beetles, including the spotted lady beetle, Coleomegilla maculata. D. coccinellae has been described as turning its ladybird host into a temporary "zombie" guarding the wasp cocoon. About 25% of Coleomegilla maculata recover after the cocoon they are guarding matures, although the proportion of other ladybird species which recover is much lower.
The Euphorinae are a large subfamily of Braconidae parasitoid wasps. Some species have been used for biological pest control. They are sister group to the Meteorinae.
Cotesia glomerata, the white butterfly parasite, is a small parasitoid wasp belonging to family Braconidae. It was described by Carl Linnaeus in his 1758 publication 10th edition of Systema Naturae.
Cotesia is a genus of braconid wasps first described by Peter Cameron in 1891. Some species parasitize caterpillars of species considered pests, and are used as biocontrol agents. Cotesia congregata parasitizes the tomato and the tobacco hornworms. C. glomerata and C. rubecula feed on the cabbage white and other white butterfly caterpillars. C. gonopterygis and C. risilis are host-specific and parasitize the common brimstone.
Dolichogenidea is a genus of parasitoid wasps in the family Braconidae. There are more than 360 described species in Dolichogenidea, found throughout the world.
Asobara is a genus of parasitoid wasps in the family Braconidae. It contains around forty species. The genus is best known for the Drosophila parasitoid Asobara tabida, which is notable as both a model for parasitoid wasp infection in insects, and also as a representative of the hologenome theory of evolution. Asobara tabida is commensally infected with Wolbachia, and cannot reproduce in the absence of Wolbachia infection. As such, the genome of Asobara is directly tied to the genome of its commensal Wolbachia symbiont, and the two are considered to have a hologenome.
Meteorus is a genus of parasitoid wasps in the family Braconidae. It comprises over 330 species worldwide.
Chrysopophthorus hungaricus is a species of wasp in the family Braconidae. It is found in North Italy. It is also found in Great Britain as an introduced species. It is a parasitoid of adult Chrysopidae (Neuroptera).
Euphorini is a tribe of braconid wasps in the subfamily Euphorinae.
Hybrizon is the genus in the subfamily Hybrizontinae of ichneumonid parasitoid wasps. The subfamily was previously called Paxylommatinae, and has in the past been considered part Braconidae, or a separate family altogether.
Diachasmimorpha longicaudata is a solitary species of parasitoid wasp and an endoparasitoid of tephritid fruit fly larvae. D. longicaudata is native to many countries in Southeast Asia and subtropical regions and has also been introduced to many other countries as a biological control agent. It is now considered the most extensively used parasitoid for biocontrol of fruit flies in both the southern portion of the United States and Latin America. D. longicaudata is especially useful for agricultural purposes in the control of fruit flies as it is easily mass-reared and has the ability to infect a variety of hosts within the genus Bactrocera. A negative factor in its use as a biocontrol agent is that it is known to oviposit in grapefruit in the state of Florida. This has resulted in quarantines on grapefruit shipped internationally as well as domestically. Research is ongoing to determine whether D. longicaudata is actually a single species, or if it contains multiple species. It is likely multiple biological species separated by both reproductive isolation and morphological characteristics such as wing geometry.
Meteorinae is a subfamily of braconid parasitoid wasps; however, since 2015, most scientists have treated this clade as the Tribe Meteorini in Euphorinae. Several species have been used in biological control programs. The name for this group comes from the pupal stage, which, in species attacking Lepidopteran hosts, hangs suspended from a long thread of silk.
Diolcogaster is a genus of parasitoid wasps within the subfamily Microgastrinae of the family Braconidae. The genus is poorly studied, likely with multiple undescribed species. The type species is Diolcogaster melligaster(Provancher, 1886), formerly Microgaster melligaster. Species in this genus parasitize lepidopterans and are geographically widespread. There are more than 140 described species in Diolcogaster found throughout the world.
Trogus is a genus of parasitoid wasp found in the Holarctic and Neotropic regions. It is placed in the subfamily Ichneumoninae and the tribe Ichneumonini. Trogus species are parasites of larvae and pupae of the swallowtail butterfly family, Papilionidae. The genus consists of twelve extant and one extinct species.
Cryptoxilos thorpei is a species of parasitoid wasp belonging to the family Braconidae. The species was first described by Scott R. Shaw and Jocelyn A. Berry in 2005, and is endemic to New Zealand.
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