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Dusona Leptogaster
''Dusona leptogaster'' is a species of parasitic wasp belonging to the family Ichneumonidae, subfamily Campopleginae.''Taxapad Ichneumonoidea''. Yu D.S.K., 4 May 2009 It is a parasitoid of Geometrid moth larvae, the two known hosts being ''Alsophila aescularia'' and '' Lomaspilis marginata''. Description Head, antennae and thorax black. Central abdominal segments red, basal and posterior segments black. Coloration of legs varies. Petioloar suture complete. First gastral sternite coriaceous medially. Mesopleuron with wrinkles and without punctuation centrally, densely rugose-punctate dorsally and ventrally (some small specimens might be rugose-punctate centrally). Third gastral tergite separated from the epipleuron by a crease. Median longitudinal carinae of propodeum complete anteriorly. Size 7–8 mm, 38–43 flagellomeres. D. leptogaster is very similar to other small species of Dusona such as '' Dusona nidulator'', ''Dusona admontina'' and '' Dusona terebrator'' but can ...
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Ichneumonidae
The Ichneumonidae, also known as the ichneumon wasps, Darwin wasps, or ichneumonids, 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 currently described. 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.Quicke, D. L. J. (2015). The braconid and ichneumonid parasitoid wasps: biology, systematics, evolution and ecology. Chichester: John Wiley & Sons, Ltd. 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 distribution of the ichneumonids was traditionally consi ...
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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 ...
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Siberia
Siberia ( ; rus, Сибирь, r=Sibir', p=sʲɪˈbʲirʲ, a=Ru-Сибирь.ogg) is an extensive geographical region, constituting all of North Asia, from the Ural Mountains in the west to the Pacific Ocean in the east. It has been a part of Russia since the latter half of the 16th century, after the Russians conquered lands east of the Ural Mountains. Siberia is vast and sparsely populated, covering an area of over , but home to merely one-fifth of Russia's population. Novosibirsk, Krasnoyarsk and Omsk are the largest cities in the region. Because Siberia is a geographic and historic region and not a political entity, there is no single precise definition of its territorial borders. Traditionally, Siberia extends eastwards from the Ural Mountains to the Pacific Ocean, and includes most of the drainage basin of the Arctic Ocean. The river Yenisey divides Siberia into two parts, Western and Eastern. Siberia stretches southwards from the Arctic Ocean to the hills of nort ...
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Palearctic Region
The Palearctic or Palaearctic is the largest of the eight biogeographic realms of the Earth. It stretches across all of Eurasia north of the foothills of the Himalayas, and North Africa. The realm consists of several bioregions: the Euro-Siberian region; the Mediterranean Basin; the Sahara and Arabian Deserts; and Western, Central and East Asia. The Palaearctic realm also has numerous rivers and lakes, forming several freshwater ecoregions. The term 'Palearctic' was first used in the 19th century, and is still in use as the basis for zoogeographic classification. History In an 1858 paper for the ''Proceedings of the Linnean Society'', British zoologist Philip Sclater first identified six terrestrial zoogeographic realms of the world: Palaearctic, Aethiopian/Afrotropic, Indian/Indomalayan, Australasian, Nearctic, and Neotropical. The six indicated general groupings of fauna, based on shared biogeography and large-scale geographic barriers to migration. Alfred Wallace adop ...
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Cocoon (silk)
A pupa ( la, pupa, "doll"; plural: ''pupae'') is the life stage of some insects undergoing transformation between immature and mature stages. Insects that go through a pupal stage are holometabolous: they go through four distinct stages in their life cycle, the stages thereof being egg, larva, pupa, and imago. The processes of entering and completing the pupal stage are controlled by the insect's hormones, especially juvenile hormone, prothoracicotropic hormone, and ecdysone. The act of becoming a pupa is called pupation, and the act of emerging from the pupal case is called eclosion or emergence. The pupae of different groups of insects have different names such as ''chrysalis'' for the pupae of butterflies and ''tumbler'' for those of the mosquito family. Pupae may further be enclosed in other structures such as cocoons, nests, or shells. Position in life cycle The pupal stage follows the larval stage and precedes adulthood ('' imago'') in insects with complete me ...
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Pupa
A pupa ( la, pupa, "doll"; plural: ''pupae'') is the life stage of some insects undergoing transformation between immature and mature stages. Insects that go through a pupal stage are holometabolous: they go through four distinct stages in their life cycle, the stages thereof being egg, larva, pupa, and imago. The processes of entering and completing the pupal stage are controlled by the insect's hormones, especially juvenile hormone, prothoracicotropic hormone, and ecdysone. The act of becoming a pupa is called pupation, and the act of emerging from the pupal case is called eclosion or emergence. The pupae of different groups of insects have different names such as ''chrysalis'' for the pupae of butterflies and ''tumbler'' for those of the mosquito family. Pupae may further be enclosed in other structures such as cocoons, nests, or shells. Position in life cycle The pupal stage follows the larval stage and precedes adulthood ('' imago'') in insects with complete metamo ...
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Univoltine
Voltinism is a term used in biology to indicate the number of broods or generations of an organism in a year. The term is most often applied to insects, and is particularly in use in sericulture, where silkworm varieties vary in their voltinism. * Univoltine (monovoltine) – (adjective) referring to organisms having one brood or generation per year * Bivoltine (divoltine) – (adjective) referring to organisms having two broods or generations per year *Trivoltine – (adjective) referring to organisms having three broods or generations per year * Multivoltine (polyvoltine) – (adjective) referring to organisms having more than two broods or generations per year * Semivoltine – There are two meanings: :* (''biology'') Less than univoltine; having a brood or generation less often than once per year :* or (adjective) referring to organisms whose generation time is more than one year. Examples The speckled wood butterfly is univoltine in the northern part of its range, e.g. nor ...
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Dusona Terebrator
''Dusona terebrator'' is a species of parasitic wasp belonging to the family Ichneumonidae, subfamily Campopleginae.''Taxapad Ichneumonoidea''. Yu D.S.K., 2009-05-04 It is a parasitoid of Noctuid moth larvae. Description Head, Antenna (biology), antennae and thorax black. Central abdomen, abdominal segments red, basal and posterior segments black, second tergite red on the posterior 0.4–0.5. Hind tibia distinctly marked with black basally and apically. Maxillary palps blackish brown. Mandibles black in females, sometimes marked with yellowish red in males. Petiole (insect anatomy), Petiole smooth or with fine sculpture laterally in front of the glymmae, at most with some transverse wrinkles anteriorly. Mesopleuron with distinctly separated punctures at least dorsally and ventrally, coriaceous and dull between punctures. Third tergite, gastral tergite separated from the epipleuron by a crease. Median longitudinal carinae of the propodeum complete or almost complete, joining the c ...
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Dusona Admontina
''Dusona admontina'' is a species of parasitic wasp belonging to the family Ichneumonidae, subfamily Campopleginae.''Taxapad Ichneumonoidea''. Yu D.S.K., 2009-05-04 It is a parasitoid of the larvae of ''Herminia grisealis''. Description Head, Antenna (biology), antennae and thorax black. Central and posterior abdomen, abodominal segments red or distinctly marked with red, basal segments mostly black. Coloration of legs varies between redish brown to black. Petioloar suture complete. First sternite, gastral sternite finely coriaceous medially. Size 7–9mm, 34–39 flagellomeres. ''D. admontia'' is very similar to other small species of ''Dusona'' but can be distinguished by a combination of the 3rd tergite, gastral tergite being separated from the epipleuron by a crease, the mesopleuron being densely rugose-punctate with the interspaces coriaceous and rather dull, the coloration of abdomen and the number of flagellomeres. Ecology ''Dusona admontina'' has a short flight period bet ...
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Dusona Nidulator
''Dusona nidulator'' is a species of parasitic wasp belonging to the family Ichneumonidae, subfamily Campopleginae.''Taxapad Ichneumonoidea''. Yu D.S.K., 4 May 2009 It is a parasitoid, but the host is unknown. Description Head, antennae and thorax black. Central abdominal segments red, basal and posterior segments black (second tergite red on the posterior 0.1–0.3). Hind tibia yellowish red, often weakly marked with black basally, distinctly marked with black apically. First gastral sternite coriaceous medially. Petiole distinctly sculptured laterally in front of the deep glymmae, with long rows of transverse wrinkles or with irregular wrinkles. Mesopleuron with distinctly separated punctures at least dorsally and ventrally, smooth and shining between punctures. Third gastral tergite separated from the epipleuron by a crease. Spiracular carina indistinct or obliterated. Size 12–13 mm, 48–52 flagellomeres. Ovipositor index 0.5–0.6. ''D. nidulator'' is very similar ...
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Tergite
A ''tergum'' (Latin for "the back"; plural ''terga'', associated adjective tergal) is the dorsal ('upper') portion of an arthropod segment other than the head. The anterior edge is called the 'base' and posterior edge is called the 'apex' or 'margin'. A given tergum may be divided into hardened plates or sclerites commonly referred to as tergites. In a thoracic segment, for example, the tergum may be divided into an anterior notum and a posterior scutellum. Lateral extensions of a tergite are known as paranota (Greek for "alongside the back") or ''carinae'' (Latin for "keel"), exemplified by the flat-backed millipedes of the order Polydesmida. Kinorhynchs have tergal and sternal plates too, though seemingly not homologous with those of arthropods. Tergo-tergal is a stridulatory mechanism in which fine spines of the abdominal tergites are rubbed together to produce sound. This process is known as abdominal telescoping. Examples File:Andrena spiraeana abdomen.jpg , Abdominal ...
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