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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.
The Orussidae or the parasitic wood wasps represent a small family of sawflies ("Symphyta"). Currently, about 93 extant and four fossil species are known. They take a key position in phylogenetic analyses of Hymenoptera, because they form the sister taxon of the megadiverse apocritan wasps, and the common ancestor of Orussidae + Apocrita evolved parasitism for the first time in course of the evolution of the Hymenoptera. They are also the only sawflies with carnivorous larvae.
The Gasteruptiidae are one of the more distinctive families among the apocritan wasps, with surprisingly little variation in appearance for a group that contains around 500 species in two subfamilies and with 6 genera worldwide. They are members of Evanioidea.
The Stephanidae, sometimes called crown wasps, are a family of parasitoid wasps. They are the only living members of the superfamily Stephanoidea. Stephanidae has at least 345 living species in 11 genera. The family is considered cosmopolitan in distribution, with the highest species concentrations in subtropical and moderate climate zones. Stephanidae also contain four extinct genera described from both compression fossils and inclusions in amber.
Jean-Jacques Kieffer was a French naturalist and entomologist who specialised in the study of parasitic insects. Educated as a priest, Kieffer taught natural science in Bitche, Lorraine while working on the description and classification of insects. His work and publications later became a predominant source of description and classification for entomologists in the early 20th century, in particular with regard to parasitoid wasps, midges, and mosquitos.
The Sierolomorphidae are a family of 13 extant species of wasps, in the genera Sierolomorpha and Proscleroderma, mostly found in the Northern Hemisphere. They are rare and very little is known of their biology. A fossil species Loreisomorpha nascimbenei has also been placed in the family.
Hunting wasps are members of various taxa of the insect order Hymenoptera. Their habits and affinities vary in many ways, but all practise parental care of their larvae in that they capture prey, usually insects, to feed their larvae. Whether solitary or social, most species construct some form of protection or nest in which they hide the prey and in which the larvae can feed and pupate in reasonable security.
The Bethylidae are a family of aculeate wasps in the superfamily Chrysidoidea. As a family, their biology ranges between parasitoid wasps and hunting wasps.
Ochetellus is a genus of ants first described by Steve Shattuck in 1992. He placed it in the subfamily Dolichoderinae of the family Formicidae. The ants in this genus are small and black in colour; workers measure 1.75 to 3 millimetres in length, the males at around 1.6 millimetres (0.06 in) are smaller, and the queens are the largest, reaching 4 millimetres (0.16 in). There are seven described species and three described subspecies that mostly live in Australia in a wide variety of habitats, but some species are found in Asia. One species, Ochetellus glaber, has been introduced into New Zealand and the United States.
Nylanderia is a large genus of ants in the subfamily Formicinae. The genus has a nearly cosmopolitan distribution with species inhabiting a wide array of habitats in almost all geographic regions. Nylanderia, currently containing over 110 species, is an ecologically important genus, with some species reported as being invasive. The ants are small to medium in size and range in color from pale yellow to black.
The Thynnidae are a family of large, solitary wasps whose larvae are almost universally parasitoids of various beetle larvae, especially those in the superfamily Scarabaeoidea. Until recently, the constituents of this family were classified in the family Tiphiidae, but multiple studies have independently confirmed that thynnids are a separate lineage.
Tetrastichinae is a subfamily of the chalcid wasp family Eulophidae. It is one of the largest subfamilies of the Eulophidae containing over 100 genera and nearly 3,000 species. The species of the family Tetrastichinae are found in almost any type of terrestrial habitat and have a worldwide distribution, except Antarctica. They show a varied biology and hosts for Tetrastichinae wasps have been identified from over 100 different insect families, across 10 different orders and they have also been recorded as being parasitoids on nematodes, mites and spiders' eggs. Some species are even phytophagous, while others are inquilines and yet others are gall formers.
Sclerodermus domesticus, also known as Scleroderma domesticus, Scleroderma domesticum, Scleroderma domestica or "antiquarian's friend", is a species of cuckoo wasp in the insect genus Sclerodermus. It was first described by Pierre André Latreille in 1809.
Epyris is a genus of cuckoo wasps in the family Bethylidae. There are at least 50 described species in Epyris.
Goniozus is a genus of parasitic wasps in the family Bethylidae. There are at least 20 described species in Goniozus.
Pseudisobrachium is a genus of cuckoo wasps in the family Bethylidae. There are about six described species in Pseudisobrachium.
Sclerodermus is a genus of cuckoo wasps in the family Bethylidae. There are at least 20 described species in Sclerodermus.
Aulacus is a genus of aulacids, ensigns, and gasteruptiids in the family Aulacidae. There are 77 species of Aulacus.
Laelius is a genus of hymenopteran parasitoids in the family Bethylidae. Laelius species are ectoparasitoids of immature stages of beetles, such as Dermestidae, and thus are commonly taken indoors. There are 57 extent species worldwide and 4 additional species known from fossil records in amber. A number of species have recently been moved from the genus Rhabdepyris to Laelius.
References
- ↑ Azevedo, Celso O.; Alencar, Isabel D. C. C.; Barbosa, Diego N. (2010). "Order Hymenoptera, family Bethylidae". Arthropod fauna of the UAE. 3: 388–411.
- ↑ Colombo, Wesley D.; Tribull, Carly M.; Waichert, Cecilia; Azevedo, Celso O. (2022). "Integrative taxonomy solves taxonomic impasses: a case study from Epyrinae (Hymenoptera, Bethylidae)". Royal Entomological Society. 47: 504–529. doi:10.1111/syen.12544.
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