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Siettitia
''Siettitia'' is a genus of beetles in the family Dytiscidae The Dytiscidae – based on the Greek ''dytikos'' (δυτικός), "able to dive" – are the predaceous diving beetles, a family of water beetles. They occur in virtually any freshwater habitat around the world, but a few species live a ..., containing the following species: at Joel Hallan's Biology Catalog. Texas A&M University. Retrieved on 7 May 2012. * '' Siettitia avenionensis'' Guignot, 1925 * '' Siettitia balsetensis'' Abeille de Perrin, 1904 [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Siettitia Balsetensis
Perrin's cave beetle, ''Siettitia balsetensis'', is an extinct freshwater beetle from France. Listed as Extinct (EX) It and '' Siettitia ayenionensis'' are the only two species in the genus ''Siettitia''. This subterranean species was discoloured, its sensory silks were well developed and the eyes were extremely reduced yet probably functional. The tracheae of its wing-cases (elytra) were well developed and it absorbed dissolved oxygen through its cuticle.Maas, P. 2006. Extinctions in EuropeThe Extinction Website. See also * List of extinct animals of Europe This list of European animals extinct in the Holocene features animals known to have become extinct in the last 12,000 years on the European continent and its surrounding islands. Dependent territories of European countries in other continents, l ... References Dytiscidae Cave beetles Extinct insects since 1500 Extinct beetles Extinct animals of Europe Beetles described in 1904 Endemic beetles of Metropolitan F ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Siettitia Avenionensis
''Siettitia'' is a genus of beetles in the family Dytiscidae, containing the following species: at Joel Hallan's Biology Catalog. Texas A&M University. Retrieved on 7 May 2012. * '' Siettitia avenionensis'' Guignot, 1925 * '' Siettitia balsetensis
Perrin's cave beetle, ''Siettitia balsetensis'', is an extinct freshwater beetle from France. Listed as Extinct (EX) It and '' Siettitia ayenionensis'' are the only two species in the genus ''Siettitia''.
This subterranean species was ...
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Dytiscidae
The Dytiscidae – based on the Greek ''dytikos'' (δυτικός), "able to dive" – are the predaceous diving beetles, a family of water beetles. They occur in virtually any freshwater habitat around the world, but a few species live among leaf litter. The adults of most are between long, though much variation is seen between species. The European ''Dytiscus latissimus'' and Brazilian ''Megadytes ducalis'' are the largest, reaching up to and respectively. In contrast, the smallest is likely the Australian ''Limbodessus atypicali'' of subterranean waters, which only is about long. Most are dark brown, blackish, or dark olive in color with golden highlights in some subfamilies. The larvae are commonly known as water tigers due to their voracious appetite. They have short, but sharp mandibles and immediately upon biting, they deliver digestive enzymes into prey to suck their liquefied remains. The family includes more than 4,000 described species in numerous genera. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Beetle
Beetles are insects that form the order Coleoptera (), in the superorder Endopterygota. Their front pair of wings are hardened into wing-cases, elytra, distinguishing them from most other insects. The Coleoptera, with about 400,000 described species, is the largest of all orders, constituting almost 40% of described insects and 25% of all known animal life-forms; new species are discovered frequently, with estimates suggesting that there are between 0.9 and 2.1 million total species. Found in almost every habitat except the sea and the polar regions, they interact with their ecosystems in several ways: beetles often feed on plants and fungi, break down animal and plant debris, and eat other invertebrates. Some species are serious agricultural pests, such as the Colorado potato beetle, while others such as Coccinellidae (ladybirds or ladybugs) eat aphids, scale insects, thrips, and other plant-sucking insects that damage crops. Beetles typically have a particularly hard e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
