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Psocoptera Genera
Psocoptera () are a paraphyletic group of insects that are commonly known as booklice, barklice or barkflies. The name Psocoptera has been replaced with Psocodea in recent literature, with the inclusion of the former order Phthiraptera into Psocodea (as part of the suborder Troctomorpha). They are often regarded as the most primitive of the paraneopterans. There are more than 5,500 species in 41 families in three suborders. Many of these species have only been described in the early twenty-first century. They range in size from in length. The species known as booklice received their common name because they are commonly found amongst old books—they feed upon the paste used in binding. The barklice are found on trees, feeding on algae and lichen. Etymology Their name originates from the Greek word ψῶχος (''psokhos''), meaning " gnawed" or " rubbed" and πτερά (''ptera''), meaning " wings". Classification In the 2000s, morphological and molecular phylogenetic evide ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Late Jurassic
The Late Jurassic is the third Epoch (geology), epoch of the Jurassic Period, and it spans the geologic time scale, geologic time from 161.5 ± 1.0 to 143.1 ± 0.8 million years ago (Ma), which is preserved in Upper Jurassic stratum, strata.Owen 1987. In European lithostratigraphy, the name "Malm" indicates rocks of Late Jurassic age. In the past, ''Malm'' was also used to indicate the unit of geological time, but this usage is now discouraged to make a clear distinction between lithostratigraphic and geochronologic/chronostratigraphic units. Subdivisions The Late Jurassic is divided into three ages, which correspond with the three (faunal) stages of Upper Jurassic rock: Paleogeography During the Late Jurassic Epoch, Pangaea broke up into two supercontinents, Laurasia to the north, and Gondwana to the south. The result of this break-up was the emergence of the Atlantic Ocean, which initially was relatively narrow. Life forms This epoch is well known for many famous types of d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Insect Mouthparts
Insects have arthropod mouthparts, mouthparts that may vary greatly across insect species, as they are adapted to particular modes of feeding. The earliest insects had chewing mouthparts. Most specialisation of mouthparts are for piercing and sucking, and this mode of feeding has evolved a number of times independently. For example, mosquitoes (which are true flies) and aphids (which are Hemiptera, true bugs) both pierce and suck, though female mosquitoes feed on animal blood whereas aphids feed on plant fluids. Evolution Like most external features of arthropods, the mouthparts of Hexapoda are highly derived. Insect mouthparts show a multitude of different functional mechanisms across the wide diversity of insect species. It is common for significant Homology (biology), homology to be conserved, with matching structures forming from matching Primordium, primordia, and having the same evolutionary origin. However, even if structures are almost physically and functionally identica ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mandible (arthropod)
250px, The mandibles of a bull ant The mandible (from or mandĭbŭ-lum, a jaw) of an arthropod is a pair of mouthparts used either for biting or cutting and holding food. Mandibles are often simply called jaws. Mandibles are present in the extant subphyla Myriapoda (millipedes and others), Crustacea and Hexapoda (insects etc.). These groups make up the clade Mandibulata, which is currently believed to be the sister group to the rest of arthropods, the clade Arachnomorpha (Chelicerata and Trilobita). Unlike the chelicerae of arachnids, mandibles can often be used to chew food. Mandibulates also differ by having antennae, and also by having three distinct body regions: head, thorax and abdomen. (The cephalothorax (or prosoma) of chelicerates is a fusion of head and thorax.) Insects Insect mandibles are as diverse in form as their food. For instance, grasshoppers and many other plant-eating insects have sharp-edged mandibles that move side to side. Most butterflies ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amphientometae
Amphientometae is an infraorder of psocids, one of two major division of the Troctomorpha within the order Psocodea (formerly Psocoptera). There are about 7 families and at least 230 described species in Amphientometae. Families These seven families belong to the infraorder Amphientometae: * Amphientomidae Enderlein, 1903 (tropical barklice) * Compsocidae Mockford, 1967 * Manicapsocidae Manicapsocidae is a family of Psocodea (formerly Psocoptera). It contains 8 extant species in 4 genera, with most of the species being found in the Neotropics and one species in the Afrotropics. The extinct family Electrentomidae has been sugges ... Mockford, 1967 * Musapsocidae Mockford, 1967 * Protroctopsocidae Smithers, 1972 * Troctopsocidae Mockford, 1967 * † Electrentomidae Enderlein, 1911 References Further reading * Troctomorpha {{psocoptera-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sphaeropsocidae
Sphaeropsocidae is a family of Psocodea (formerly Psocoptera), belonging to the suborder Troctomorpha. Females of this family have reduced, beetle-like elytra, and lack hindwings, with males have either small or absent wings. The family comprises 22 known species (four of them fossils) in eight genera. Taxonomy * †'' Asphaeropsocites'' Azar et al. 2010 Lebanese amber, Early Cretaceous (Barremian) * '' Badonnelia'' Pearman, 1953 Chile, Recent (except ''Badonnelia titei'', which is found alongside humans in Europe and North America)Mockford, Edward L. 2005. "First New World Record for ''Badonnelia Titei'' (Insecta: Psocoptera: Sphaeropsocidae)," ''The Great Lakes Entomologist'', vol 38 (2) Available at: https://scholar.valpo.edu/tgle/vol38/iss2/1 * * '' Sphaeropsocopsis'' North America, South America, St Helena, Recent * '' Sphaeropsocus'' Baltic amber, Eocene, Southeastern US (Recent) * †'' Sphaeropsocites'' Lebanese amber, Early Cretaceous (Barremian) * †'' Sphaeropsoc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pachytroctidae
Pachytroctidae is a family of thick barklice in the order Psocodea (formerly Psocoptera). There are about 15 genera and at least 90 described species in Pachytroctidae. Members of this family are small, often macropterous, with a distinct wing venation. Genera These 15 genera belong to the family Pachytroctidae: * '' Antilopsocus'' Gurney, 1965 * '' Atapinella'' Azar, Huang, Cai & Nel, 2015 * '' Burmipachytrocta'' Azar, Huang, Cai & Nel, 2015 * '' Leptotroctes'' Badonnel, 1973 * '' Libaneuphoris'' Azar, Huang, Cai & Nel, 2015 * '' Libanopsyllipsocus'' Azar & Nel, 2011 * '' Nanopsocus'' Pearman, 1928 * '' Nymphotroctes'' Badonnel, 1931 * '' Pachytroctes'' Enderlein, 1905 * '' Peritroctes'' Ribaga, 1911 * '' Psacadium'' Enderlein, 1908 * '' Psylloneura'' Enderlein, 1903 * '' Psyllotroctes'' Roesler, 1940 * '' Tapinella'' Enderlein, 1908 * '' Thoracotroctes'' Lienhard, 2005 c g Data sources: i = ITIS, c = Catalogue of Life, g = GBIF, b = Bugguide.net References * Lienhard, C. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Liposcelididae
Liposcelididae (historically often referred to as "Liposcelidae") is a family of booklice of the order Psocodea (formerly Psocoptera), belonging to the suborder Troctomorpha. Members of this family are small and flattened, and often wingless. Mesothorax and metathorax fused in wingless forms. The family contains close to 200 species, arranged in nine genera which make up one smaller and one larger subfamily: Subfamily Embidopsocinae * '' Belapha'' * '' Belaphopsocus'' * '' Belaphotroctes'' * '' Chaetotroctes'' * '' Embidopsocopsis'' * '' Embidopsocus'' * '' Troctulus'' Subfamily Liposcelidinae * '' Liposcelis'' * '' Troglotroctes'' †'' Cretoscelis'' Grimaldi and Engel 2006 Burmese amber, Myanmar, Cenomanian The Cenomanian is, in the International Commission on Stratigraphy's (ICS) geological timescale, the oldest or earliest age (geology), age of the Late Cretaceous epoch (geology), Epoch or the lowest stage (stratigraphy), stage of the Upper Cretace ... References * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cladogram
A cladogram (from Greek language, Greek ''clados'' "branch" and ''gramma'' "character") is a diagram used in cladistics to show relations among organisms. A cladogram is not, however, an Phylogenetic tree, evolutionary tree because it does not show how ancestors are related to descendants, nor does it show how much they have changed, so many differing evolutionary trees can be consistent with the same cladogram. A cladogram uses lines that branch off in different directions ending at a clade, a group of organisms with a last common ancestor. There are many shapes of cladograms but they all have lines that branch off from other lines. The lines can be traced back to where they branch off. These branching off points represent a hypothetical ancestor (not an actual entity) which can be inferred to exhibit the traits shared among the terminal taxa above it. This hypothetical ancestor might then provide clues about the order of evolution of various features, adaptation, and other e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Proceedings Of The Royal Society Of London
''Proceedings of the Royal Society'' is the main research journal of the Royal Society. The journal began in 1831 and was split into two series in 1905: * Series A: for papers in physical sciences and mathematics. * Series B: for papers in life sciences. Many landmark scientific discoveries are published in the Proceedings, making it one of the most important science journals in history. The journal contains several articles written by prominent scientists such as Paul Dirac, Werner Heisenberg, Ernest Rutherford, Erwin Schrödinger, William Lawrence Bragg, Lord Kelvin, J.J. Thomson, James Clerk Maxwell, Dorothy Hodgkin and Stephen Hawking. In 2004, the Royal Society began '' The Journal of the Royal Society Interface'' for papers at the interface of physical sciences and life sciences. History The journal began in 1831 as a compilation of abstracts of papers in the ''Philosophical Transactions of the Royal Society'', the older Royal Society publication, that began in 1665. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lice
Louse (: lice) is the common name for any member of the infraorder Phthiraptera, which contains nearly 5,000 species of wingless parasitic insects. Phthiraptera was previously recognized as an order, until a 2021 genetic study determined that they are a highly modified lineage of the order Psocodea, whose members are commonly known as booklice, barklice or barkflies. Lice are obligate parasites, living externally on warm-blooded hosts, which include every species of bird and mammal, except for monotremes, pangolins, and bats. Chewing lice live among the hairs or feathers of their host and feed on skin and debris, whereas sucking lice pierce the host's skin and feed on blood and other secretions. They usually spend their whole life on a single host, cementing their eggs, called nits, to hairs or feathers. The eggs hatch into nymphs, which moult three times before becoming fully grown, a process that takes about four weeks. Humans host two species of louse—the head lou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phylogenetic
In biology, phylogenetics () is the study of the evolutionary history of life using observable characteristics of organisms (or genes), which is known as phylogenetic inference. It infers the relationship among organisms based on empirical data and observed heritable traits of DNA sequences, protein amino acid sequences, and morphology. The results are a phylogenetic tree—a diagram depicting the hypothetical relationships among the organisms, reflecting their inferred evolutionary history. The tips of a phylogenetic tree represent the observed entities, which can be living taxa or fossils. A phylogenetic diagram can be rooted or unrooted. A rooted tree diagram indicates the hypothetical common ancestor of the taxa represented on the tree. An unrooted tree diagram (a network) makes no assumption about directionality of character state transformation, and does not show the origin or "root" of the taxa in question. In addition to their use for inferring phylogenetic pa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
