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Thysanus (insect)
''Thysanus'' is a genus of insects belonging to the family Signiphoridae. The genus has almost cosmopolitan distribution In biogeography, cosmopolitan distribution is the term for the range of a taxon that extends across all or most of the world in appropriate habitats. Such a taxon, usually a species, is said to exhibit cosmopolitanism or cosmopolitism. The ext .... Species: * '' Thysanus ater'' Walker, 1840 * '' Thysanus coleoptratus'' Kerrich, 1953 References {{Taxonbar, from=Q13908487 Chalcidoidea Hymenoptera genera ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Insects
Insects (from Latin ') are pancrustacean hexapod invertebrates of the class Insecta. They are the largest group within the arthropod phylum. Insects have a chitinous exoskeleton, a three-part body (head, thorax and abdomen), three pairs of jointed legs, compound eyes and one pair of antennae. Their blood is not totally contained in vessels; some circulates in an open cavity known as the haemocoel. Insects are the most diverse group of animals; they include more than a million described species and represent more than half of all known living organisms. The total number of extant species is estimated at between six and ten million; In: potentially over 90% of the animal life forms on Earth are insects. Insects may be found in nearly all environments, although only a small number of species reside in the oceans, which are dominated by another arthropod group, crustaceans, which recent research has indicated insects are nested within. Nearly all insects hatch from eggs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Signiphoridae
Signiphoridae (historically also known as Thysanidae) is a small family of parasitic wasps in the superfamily Chalcidoidea. The roughly 80 species are placed in four genera. Diagnosis The Signiphoridae range in size from . They are usually black, brown, or yellowish, occasionally with salmon pink or white details, but never metallic. Cuticle sculpturing is very light when compared to families such as the Eurytomidae or Chalcididae. The main diagnostic characteristics are: * The metasoma is sessile (no "wasp waist"); the propodeum has a medium triangular zone. * The antennal club is long, unsegmented, and preceded by one to four ring-like segments ("annelli"). * The wings have medium to long marginal setae, short postmarginal and stigmal veins, and no, one or two setae on the membrane. Habitat ''Chartocerus'' and ''Thysanus'' have cosmopolitan distributions. The only formal record for ''Clytina'' is from Eastern Europe. ''Signiphora'', which represents more than half of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cosmopolitan Distribution
In biogeography, cosmopolitan distribution is the term for the range of a taxon that extends across all or most of the world in appropriate habitats. Such a taxon, usually a species, is said to exhibit cosmopolitanism or cosmopolitism. The extreme opposite of a cosmopolitan species is an endemic one, being found only in a single geographical location. Qualification The caveat “in appropriate habitat” is used to qualify the term "cosmopolitan distribution", excluding in most instances polar regions, extreme altitudes, oceans, deserts, or small, isolated islands. For example, the housefly is highly cosmopolitan, yet is neither oceanic nor polar in its distribution. Related terms and concepts The term pandemism also is in use, but not all authors are consistent in the sense in which they use the term; some speak of pandemism mainly in referring to diseases and pandemics, and some as a term intermediate between endemism and cosmopolitanism, in effect regarding pandemism as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thysanus Ater
Thysanus may refer to: * ''Thysanus'', a genus of wasps in the family Signiphoridae described in 1840 * ''Thysanus'', a genus of flowering plants in the family Connaraceae; synonym of ''Cnestis ''Cnestis'' is a genus of flowering plants belonging to the family Connaraceae. Its native range is Tropical and Southern Africa to Malesia. Species: *'' Cnestis bomiensis'' *'' Cnestis corniculata'' *''Cnestis ferruginea'' *''Cnestis macra ...'' * ''Thysanus'', a genus of cnidarians in the family Faviidae; unknown status, described in 1863 by Duncan, a junior homonym {{genus disambiguation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chalcidoidea
Chalcid wasps (, , for their metallic colour) are insects within the superfamily Chalcidoidea, part of the order Hymenoptera. The superfamily contains some 22,500 known species, and an estimated total diversity of more than 500,000 species, meaning the vast majority have yet to be discovered and described. The name "chalcid" is often confused with the name "chalcidid", though the latter refers strictly to one constituent family, the Chalcididae, rather than the superfamily as a whole; accordingly, most recent publications (e.g.,) use the name "chalcidoid" when referring to members of the superfamily. Most chalcid wasps are parasitoids of other insects, though other life styles are known, with the herbivorous fig wasps acting as pollinators. Various species are used as biological pest control agents or in scientific research. Description Chalcidoids are generally small wasps, averaging 1.5 mm in length and usually being less than 3 mm. The body is often metallic in colour ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
