| Megalodontes | |
|---|---|
 | |
| Megalodontes sp. | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Hymenoptera |
| Suborder: | Symphyta |
| Family: | Megalodontesidae |
| Subfamily: | Megalodontesinae |
| Genus: | Megalodontes Latreille, 1802 |
| Synonyms [1] | |
| |
Megalodontes is a genus of sawflies within the Symphyta belonging to the family Megalodontesidae subfamily Megalodontesinae.
Megalodontes species are quite rare sawflies with a shiny black body and narrow pale yellow stripes on the abdomen. The head is large, the antennae are pectinate and the wings are reddish. These species are restricted to the temperate regions of Eurasia.
Sawflies are the insects of 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 Pamphilioidea are a small superfamily within the Symphyta, containing some 250 living species restricted to the temperate regions of Eurasia and North America. These hymenopterans share the distinctive feature of a very large, almost prognathous head, which is widest ventrally.
The Tenthredinoidea are the dominant superfamily of sawflies within the Symphyta, containing some 8,400 species worldwide, primarily in the family Tenthredinidae. All known larvae are phytophagous, and a number are considered pests.
Cimbicidae is a family of sawflies in the order Hymenoptera. There are more than 20 genera and 200 described species in Cimbicidae. Larvae are solitary herbivores.
Tenthredinidae is the largest family of sawflies, with well over 7,500 species worldwide, divided into 430 genera. Larvae are herbivores and typically feed on the foliage of trees and shrubs, with occasional exceptions that are leaf miners, stem borers, or gall makers. The larvae of externally feeding species resemble small caterpillars. As with all hymenopterans, common sawflies undergo complete metamorphosis.
Acantholyda is a genus of sawflies.
Nematinae is a subfamily of sawflies belonging to the family Tenthredinidae. It contains over 1250 described species in ~40 genera. Members of this subfamily feed on a wide range of plants and employ a wide range of feeding habits, both internally and externally, on their host plants.
Trichiosoma is a genus of cimbicid sawflies in the family Cimbicidae. There are more than 30 described species in Trichiosoma.
Tenthredo is a genus of sawflies with more than 700 species of the family Tenthredinidae, subfamily Tenthredininae. It is of Holarctic distribution.
Macrophya is a genus of sawfly.
Cephidae is a family of stem sawflies in the order Hymenoptera. There are about 27 genera and more than 160 described species in Cephidae.
Cimbex quadrimaculatus is a species of sawflies in the family Cimbicidae.
Arge berberidis, common name berberis sawfly, is a species of sawflies belonging to the family Argidae subfamily Arginae.
Tenthredopsis is a genus of common sawflies belonging to the family Tenthredinidae subfamily Tenthrediniinae. These sawflies are present in most of Europe.
Monostegia is a genus of sawfly. The authority is based on the description by Achille Costa and Oronzio Costa, although earlier work grants this to Fabricius 1798., though the commonest species, M. abdominalis, bears the authority of Fabricius.
Megalodontes cephalotes is a species of sawflies within the Symphyta belonging to the family Megalodontesidae.
Ametastegia is a genus of common sawflies in the family Tenthredinidae. There are about 16 described species in Ametastegia.
Athalia is a genus of sawflies belonging to the family Tenthredinidae. Species of the genus Athalia are found in Eurasia, Africa and North America.
Adamas is a genus of sawflies belonging to the family Tenthredinidae. It is sometimes referred to in the literature under the name Dinax, but this name is a junior homonym of a name validly published in 1848; claims that the 1848 name was not validly published have been subsequently refuted.
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