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Gasteruptiidae
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 ( Gasteruptiinae and Hyptiogastrinae) and with 6 genera worldwide. They are members of Evanioidea. Genera This family includes the following genera in two subfamilies: * Gasteruptiinae Ashmead, 1900 ** '' Gasteruption'' Latreille, 1777 ** '' Plutofoenus'' Kieffer, 1911 ** '' Spinolafoenus'' Macedo, 2009 ** '' Trilobitofoenus'' Macedo, 2009 * Hyptiogastrinae ** '' Hyptiogaster'' Kieffer, 1903 ** '' Pseudofoenus'' Kieffer, 1902 Several fossil species are also known: *Hypselogastriinae **'' Hypselogastrion'' Engel & Wang, 2016 Burmese amber, Myanmar, mid Cretaceous (latest Albian - earliest Cenomanian) *Kotujellitinae **†'' Kotujellites'' Rasnitsyn 1990 Taimyr amber, Russia Late Cretaceous (Cenomanian) **†'' Kotujisca'' Rasnitsyn 1991 Andaikhudag Formation, Mongolia, Early C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Evanioidea
The Evanioidea are a small hymenopteran superfamily that includes three families, two of which (Aulacidae and Gasteruptiidae) are much more closely related to one another than they are to the remaining family, Evaniidae. The rich fossil record, however, helps fill in the gaps between these lineages. They all share the trait of having the metasoma attached very high above the hind arthropod leg, coxae on the propodeum. It is a poorly known group as a whole, with some 1100 known species in total, and a great many species are still undescribed. While each of the three families differs in biology, within each family, they are remarkably uniform in appearance and habits. The oldest records of the group date to the Middle Jurassic, and were diverse from the Middle Jurassic to mid Cretaceous, however, during the mid-Cretaceous they were overtaken in diversity by the Ichneumonoidea, and since the end of the Cretaceous have a relatively scant fossil record. References External linksT ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gasteruption Jaculator
''Gasteruption jaculator'' is a species of the family Gasteruptiidae, subfamily Gasteruptiinae. Distribution This species is mainly present in Austria, Belgium, Great Britain, Czech Republic, Finland, France, Germany, Greece, Hungary, Italy, Poland, Romania, Russia, Slovakia, Spain, Sweden, Switzerland, in the eastern Palearctic realm, and in the Near East. Description The head and thorax are completely black. The head is strongly rounded, the thorax is elongated in a sort of long neck (''propleura''), which separates the head from the body. Also the abdomen is strongly stretched, broader at the posterior end and placed on the upper chest (''propodeum''). The colour of the abdomen is black, with reddish-orange rings. The tibiae of the hind legs are club shaped. In the female the ovipositor is usually very long with a white tip. In resting position, these wasps slowly and rhythmically raise and lower the abdomen. Life cycle The females of this parasitic wasp lays its egg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gasteruption
''Gasteruption'' is a genus of wasps belonging to the family Gasteruptiidae subfamily Gasteruptiinae. European species Species within this genus include: * '' Gasteruption assectator'' (Linnaeus 1758) * '' Gasteruption canariae'' Madl 1991 * '' Gasteruption diversipes'' (Abeille de Perrin 1879) * '' Gasteruption dolichoderum'' Schletterer 1889 * '' Gasteruption erythrostomum'' (Dahlbom 1831) * '' Gasteruption fallaciosum'' Semenov 1892 * '' Gasteruption floreum'' Szépligeti 1903 * '' Gasteruption forticorne'' Semenov 1892 * '' Gasteruption foveiceps'' Semenov 1892 * '' Gasteruption freyi'' (Tournier 1877) * '' Gasteruption goberti'' (Tournier 1877) * '' Gasteruption hastator'' (Fabricius 1804) * '' Gasteruption hungaricum'' Szépligeti 1895 * '' Gasteruption ignoratum'' Kieffer 1903 * ''Gasteruption jaculator'' (Linnaeus 1758) * '' Gasteruption laticeps'' (Tournier 1877) * '' Gasteruption lugubre'' Schletterer 1889 * '' Gasteruption merceti'' Kieffer 1904 * '' Gasteruption mi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Apocrita
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 (or gaster) 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 (plant or animal) or in a nest cell provisio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Andaikhudag Formation
The Andaikhudag Formation, in older literature referred to as Unduruh Formation or Ondorukhaa Formation, is an Early Cretaceous (Hauterivian to Barremian) geologic formation in Mongolia.Andaikhudag Formation in the remains diagnostic to the level are among the fossils that have been recovered from the formation.Weishampel et al., 20 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Burmese Amber
Burmese amber, also known as Burmite or Kachin amber, is amber from the Hukawng Valley in northern Myanmar. The amber is dated to around 100 million years ago, during the latest Albian to earliest Cenomanian ages of the mid-Cretaceous period. The amber is of significant palaeontological interest due to the diversity of flora and fauna contained as inclusions, particularly arthropods including insects and arachnids but also birds, lizards, snakes, frogs and fragmentary dinosaur remains. The amber has been known and commercially exploited since the first century AD, and has been known to science since the mid-nineteenth century. Research on the deposit has attracted controversy due to its alleged role in funding internal conflict in Myanmar and hazardous working conditions in the mines where it is collected. Geological context, depositional environment and age The amber is found within the Hukawng Basin, a large Cretaceous-Cenozoic sedimentary basin within northern Myanmar. The s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taimyr Amber
{{Disambiguation, geo, ship ...
Taymyr or Taimyr may refer to: Places *Taymyr Peninsula, a peninsula in Siberia *Taymyr Gulf *Taymyra, a river in the Taymyr Peninsula *Lake Taymyr *Taymyr Island, an island in the Kara Sea *Taymyr Autonomous Okrug, a former federal subject of Russia Transportation * Taymyr (icebreaker), "Taymyr" ship name used for icebreakers ** ''Taymyr'' (1909 icebreaker), a steam-powered icebreaker ** ''Taymyr'' class nuclear icebreaker *** ''Taymyr'' (1987 icebreaker), a nuclear-powered shallow draft icebreaker See also * Maly Taymyr Island, an island in the Laptev Sea *Taymyrsky Dolgano-Nenetsky District Taymyrsky Dolgano-Nenetsky District (russian: Таймы́рский Долга́но-Не́нецкий райо́н) is an administrativeLaw #10-4765 and municipalLaw #2-54 district (raion), one of the forty-three in Krasnoyarsk Krai, Russia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stephanidae
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. Biology Stephanids are noted for their ocellar corona, a semicircular to circular set of projections around the middle ocellus, forming a "crown" on the head. Only stephanids and the similarly old Hymenoptera family Orussidae have ocellar coronae, and it is uncertain if they developed the structure separately or if a common ancestor of both developed it and it was then lost in all but the two families. Weakly developed grooves starting at the base of the antennae and extending past the eyes to the back of the head capsule are present. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ovipositor
The ovipositor is a tube-like organ used by some animals, especially insects, for the laying of eggs. In insects, an ovipositor consists of a maximum of three pairs of appendages. The details and morphology of the ovipositor vary, but typically its form is adapted to functions such as preparing a place for the egg, transmitting the egg, and then placing it properly. For most insects, the organ is used merely to attach the egg to some surface, but for many parasitic species (primarily in wasps and other Hymenoptera), it is a piercing organ as well. Some ovipositors only retract partly when not in use, and the basal part that sticks out is known as the scape, or more specifically oviscape, the word ''scape'' deriving from the Latin word '' scāpus'', meaning "stalk" or "shaft". In insects Grasshoppers use their ovipositors to force a burrow into the earth to receive the eggs. Cicadas pierce the wood of twigs with their ovipositors to insert the eggs. Sawflies slit the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arthropod Leg
The arthropod leg is a form of jointed appendage of arthropods, usually used for walking. Many of the terms used for arthropod leg segments (called podomeres) are of Latin origin, and may be confused with terms for bones: ''coxa'' (meaning hip, plural ''coxae''), ''trochanter'', ''femur'' (plural ''femora''), ''tibia'' (plural ''tibiae''), ''tarsus'' (plural ''tarsi''), ''ischium'' (plural ''ischia''), ''metatarsus'', ''carpus'', ''dactylus'' (meaning finger), ''patella'' (plural ''patellae''). Homologies of leg segments between groups are difficult to prove and are the source of much argument. Some authors posit up to eleven segments per leg for the most recent common ancestor of extant arthropods but modern arthropods have eight or fewer. It has been argued that the ancestral leg need not have been so complex, and that other events, such as successive loss of function of a ''Hox''-gene, could result in parallel gains of leg segments. In arthropods, each of the leg segments ar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Propodeum
The propodeum or propodium is the first abdominal segment in Apocrita Hymenoptera (wasps, bees and ants). It is fused with the thorax to form the mesosoma. It is a single large sclerite, not subdivided, and bears a pair of spiracles. It is strongly constricted posteriorly to form the articulation of the petiole, and gives apocritans their distinctive shape. There may be a suture between the propodeum and the thorax, like in Symphyta 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 ... or not, and the presence or absence of such suture can aid in identifying specimens. In molluscs Propodium is the anterior (frontal) part of the foot of a mollusk. References Insect anatomy Gastropod anatomy {{insect-anatomy-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Petiole (insect)
In entomology, petiole is the technical term for the narrow waist of some hymenopteran insects, especially ants, bees, and wasps in the suborder Apocrita. The petiole can consist of either one or two segments, a characteristic that separates major subfamilies of ants. Structure The term 'petiole' is most commonly used to refer to the constricted first (and sometimes second) metasomal (posterior) segment of members of the hymenopteran suborder Apocrita (ants, bees, and wasps). It is sometimes also used to refer to other insects with similar body shapes, where the metasomal base is constricted. The petiole is occasionally called a pedicel, but in entomology, that term is more correctly reserved for the second segment of the antenna; while in arachnology, 'pedicel' is the accepted term to define the constriction between the cephalothorax and abdomen of spiders. The plump portion of the abdomen posterior to the petiole (and postpetiole in the Myrmicinae) is called the gaster ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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