| Rhogogaster viridis | |
|---|---|
 | |
| Rhogogaster viridis photographed in Leningrad, Russia | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Hymenoptera |
| Suborder: | Symphyta |
| Family: | Tenthredinidae |
| Genus: | Rhogogaster |
| Species: | R. viridis |
| Binomial name | |
| Rhogogaster viridis (Linnaeus, 1758) | |
| Synonyms | |
| |
Rhogogaster viridis is a species of common sawfly in the family Tenthredinidae. [1]
R. viridis was originally described in 1758 by Carl Linnaeus. Subsequent authors mistakenly applied the name to a separate and more common species, R. scalaris , a sister species within the same species group, and instead referred to the present species as R. dryas. True R. viridis is considered to be rare. [2]
This species is a widely-distributed yet rare species known from Bulgaria, Estonia, Finland, Germany, Great Britain, Kazakhstan, Russia, and Sweden. [2] Populations of the viridis group reported from the Nearctic realm previously designated as R. viridis are excluded from this species following revision by Taegar and Viitasaari in 2015. These rather rare sawflies can be found mainly in grassy environment, gardens and parks rich in green leaves.[ citation needed ]
Rhogogaster viridis can reach a body length of about 9–12 mm (0.35–0.47 in) in the female and 8.5–10 mm (0.33–0.39 in) in the male. Like other species in its genus, this sawfly has a light green head and body. The black markings on the head form two loops in a ∞-shape with two green, rectangular marks in front of the posterior ocelli. The wings are transparent, with the pterostigma uniformly yellowish-green. The legs are green with black bands. This species is separated from the allied R. scalaris in part by the entirely green, rather than black, postocellar carina and from R. polaris in part by the more strongly convex mesoscutellum. As in other sawflies, the female has a saw-like ovipositor. [2]
This species is rather similar to Tenthredo olivacea Klug, 1814 and to other species within its complex, including R. scalaris (Klug, 1817) and R. chlorosoma (Benson, 1943). [2]
Adults can be found from April to August.[ citation needed ] They mainly feed on pollen and nectar, but, on sunny summer days, they hunt for insects and suck out their body fluids, feeding especially on Colorado Potato Beetle ( Leptinotarsa decemlineata ). [3] [ obsolete source ] The larvae are similar to caterpillars, but they have six true legs and several abdominal prolegs. They are phytophagous and feed on the leaves of Populus tremula . [2]
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.
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.
Macrophya montana is a sawfly.
Nematus ribesii is a species of sawfly in the family Tenthredinidae. English names include common gooseberry sawfly and imported currantworm. This insect is best known as a pest of gooseberries. The larvae feed on the foliage of the plant, often defoliating it completely.
Tenthredopsis scutellaris, a common sawfly, is a species of the family Tenthredinidae and subfamily Tenthrediniinae.
Tenthredo scrophulariae, the figwort sawfly, is a species of the family Tenthredinidae, subfamily Tenthredininae.
Rhogogaster chlorosoma is a species of sawflies in the family Tenthredinidae.
Tenthredo mesomela is a sawfly species of the family Tenthredinidae, subfamily Tenthredininae.
Tenthredo olivacea is a sawfly species belonging to the family Tenthredinidae, subfamily Tenthredininae.
Rhogogaster punctulata is a species of sawflies in the family Tenthredinidae.
Macrophya punctumalbum, the privet sawfly, is a sawfly.
Tenthredo colon is a sawfly species belonging to the family Tenthredinidae.
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 most common species, M. abdominalis, bears the authority of Fabricius.
Hemichroa crocea, the striped alder sawfly or banded alder sawfly, is a species of sawfly in the family Tenthredinidae. It is probably native in Europe and has been introduced to North America. The larvae feed on the foliage of several species of alder and sometimes on birch, hazel and willow.
Hoplocampa testudinea, the apple sawfly or European apple sawfly, is a species of sawfly in the family Tenthredinidae. It is native to Europe but has been accidentally introduced into North America where it became invasive. The larvae feed inside the developing fruits of the apple tree.
Nematus oligospilus, commonly known as the willow sawfly, is a species of sawfly in the family Tenthredinidae. Native to central and northern Europe and Asia, it was first recorded in South America in the 1980s and New Zealand in 1997, and has also been introduced to Australia, South Africa and Lesotho. Its larvae feed on the leaves of various species of willow.
Euura is a genus of sawflies of the family Tenthredinidae, subfamily Nematinae. Some of the larvae feed externally on plants and some form plant galls on willows (Salix species). In the case of the gall-forming species, when the female lays her eggs she injects a stimulant and the gall starts to form before the eggs hatch. Most sawfly galls are hard and individual larva tend to inhabit the gall, feeding on the tissue and leave the gall to pupate in the soil. Most of the species are monophages although the type species, Euura mucronata, is polyphagous feeding on over thirty species of willow.
Tenthredo amoena is a sawfly species belonging to the family Tenthredinidae.
Eriocampa ovata, known generally as the alder sawfly or woolly alder sawfly, is a species of common sawfly in the family Tenthredinidae. The larvae feed on the leaves of the common alder and the grey alder, sometimes causing defoliation.
Euura bridgmanii is a species of sawfly belonging to the family Tenthredinidae. The larvae feed on the leaves of sallows. It was first described by the entomologist Peter Cameron in 1883.
