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Trox Scaber
''Trox scaber'' is a beetle of the family Trogidae. The 5 to 8 mm long insect is found worldwide, including in Europe, and lives in bird nests.Norman H. Joy, 1932 ''A Practical Handbook of British Beetles'' The elytra and pronotum are roughly sculptured, and there are bristly scales on the elytral ridges. The larvae develop in tawny owl and other owl nests but also in the hollow tree nests of jackdaw, woodpecker and others. They feed mainly on small dry carcasses, especially when dry. Name and classification ''Trox scaber'' was previously put in the Scarabaeidae because of the similarity of its antennae to that of members of this family. The genus ''Trox'' has 46 species throughout the world. In Europe, there are 21 species, all belonging to the subgenus ''Trox''. There are about 8 in Central Europe. The name ''Trox'' (from the Ancient Greek τροξ, meaning "chewer") may have been given because the mandible is forked. It is described by Fabricius as ''Maxilla bifida''. T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Des Helmore
Desmond W. Helmore (born 1940) is a New Zealand artist and illustrator, known both for his fine art and for his scientific work depicting insects, not least illustrating the New Zealand Arthropod Collection. One of the country's most noted and prolific biological illustrators, over 1000 of his illustrations of insects were published in research papers from 1976 to 2006. Life and education Helmore was born in Takapau, Hawke's Bay Region, Hawkes Bay, New Zealand, and lived there on a farm until age 12. Interested in drawing since childhood, he attended Christ's College, Christchurch, Christ's College in Christchurch, and then the Ilam School of Fine Arts at the University of Canterbury from 1959 to 1962, where he was taught by Rudolf Gopas, Rudi Gopas, Russell Clark (artist), Russell Clark, and Bill Sutton (artist), Bill Sutton. His fellow students at Ilam included Dick Frizzell, Tony Fomison, and John Panting. In his survey of New Zealand art, Frizzell described Helmore as s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clypeus (arthropod Anatomy)
The clypeus is one of the sclerites that make up the face of an arthropod. In insects, the clypeus delimits the lower margin of the face, with the labrum articulated along the ventral margin of the clypeus. The mandibles bracket the labrum, but do not touch the clypeus. The dorsal margin of the clypeus is below the antennal sockets. The clypeus is often well-defined by sulci ("grooves") along its lateral and dorsal margins, and is most commonly rectangular or trapezoidal in overall shape. The post-clypeus is a large nose-like structure that lies between the eyes and makes up much of the front of the head in cicadas. In spiders, the clypeus is generally the area between the anterior edge of the carapace A carapace is a Dorsum (biology), dorsal (upper) section of the exoskeleton or shell in a number of animal groups, including arthropods, such as crustaceans and arachnids, as well as vertebrates, such as turtles and tortoises. In turtles and tor ... and the anterior eyes. R ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Klaus Koch
Klaus Koch (October 4, 1926 – March 28, 2019) was an Old Testament scholar. Koch first studied in the Johannes Gutenberg University of Mainz and later at the Eberhard Karls University of Tübingen. He did his doctoral dissertation at the Ruprecht Karl University of Heidelberg under Gerhard von Rad. Later, Koch became a Pastor in the Lutheran Church in Prießnitz. He began his teaching career as a professor at the University of Kiel. He is Professor Emeritus of Old Testament and History of the Ancient near East Religions at the University of Hamburg, Germany. Koch has identified Martin Noth and Gerhard von Rad as the Fathers of Redaction Criticism in Old Testament Studies. Koch is best known for his assertion that the Old Testament wisdom literature has no concept of divine retribution. In his 1983 article, "Is there a Doctrine of Retribution in the Old Testament?", Koch argued for a "deed-consequences" construct, in which human deeds have "automatic and inescapable consequenc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carl Gustav Calwer
Carl Gustav Calwer (11 November 1821, Stuttgart — 19 August 1874, Mineralbad Berg) was a German entomologist who specialised in Coleoptera. He wrote initially with the Stuttgart professor Dr Gustav Jäger ''Käferbuch, Naturgeschichte der Käfer Europas'' published by Julius Hoffmann, Stuttgart a 666-page work with 50 lithographic plates all but two in colour. This very popular work was successively reprinted until 1916. Many of the fine plates were reused in Georgij Georgiewitsch Jacobson Georgiy Georgiyevich Jacobson also known as Jakobson ( ru , Георгий Георгиевич Якобсон, 1871 – 23 November 1926) was a pioneering Russian entomologist, known especially for his 900-page book on beetles. Biography ...'s 1905 ''Beetles of Russia'', enabling Jacobson to focus on illustrating previously undescribed species. References *Anonym 1874, alwer, C. G.''Nachr. bl. dtsch. malacol. Ges''. 6: 14. *Schenkling, S. 1933, alwer, C. G.''Ent. Blätter B ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gustav Jäger (Zoologe) (1832–1917), German naturalist and hygienist
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Gustav Jäger may refer to: * Gustav Jäger (painter) (1808–1871), German painter * Gustav Jäger (naturalist) Gustav Jäger (June 23, 1832 – May 13, 1917) was a German naturalist and hygienist. Biography He was born at the historic Pfarrhaus in the village of Bürg, Neuenstadt am Kocher in Württemberg. After studying medicine at Tübingen, he beca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alps
The Alps () ; german: Alpen ; it, Alpi ; rm, Alps ; sl, Alpe . are the highest and most extensive mountain range system that lies entirely in Europe, stretching approximately across seven Alpine countries (from west to east): France, Switzerland, Italy, Liechtenstein, Austria, Germany, and Slovenia. The Alpine arch generally extends from Nice on the western Mediterranean to Trieste on the Adriatic and Vienna at the beginning of the Pannonian Basin. The mountains were formed over tens of millions of years as the African and Eurasian tectonic plates collided. Extreme shortening caused by the event resulted in marine sedimentary rocks rising by thrusting and folding into high mountain peaks such as Mont Blanc and the Matterhorn. Mont Blanc spans the French–Italian border, and at is the highest mountain in the Alps. The Alpine region area contains 128 peaks higher than . The altitude and size of the range affect the climate in Europe; in the mountains, precipitation ... [...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] |
Sternites
The sternum (pl. "sterna") is the ventral portion of a segment of an arthropod thorax or abdomen. In insects, the sterna are usually single, large sclerites, and external. However, they can sometimes be divided in two or more, in which case the subunits are called sternites, and may also be modified on the terminal abdominal segments so as to form part of the functional genitalia, in which case they are frequently reduced in size and development, and may become internalized and/or membranous. For a detailed explanation of the terminology, see Kinorhynchs have tergal and sternal plates too, though seemingly not homologous with those of arthropods.Sørensen, M. V. et al. Phylogeny of Kinorhyncha based on morphology and two molecular loci. PLoS One 10, 1–33 (2015). Ventrites are externally visible sternites. Usually the first sternite is covered up, so that vertrite numbers do not correspond to sternid numbers. The term is also used in other arthropod groups such as crustaceans ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Telson
The telson () is the posterior-most division of the body of an arthropod. Depending on the definition, the telson is either considered to be the final segment of the arthropod body, or an additional division that is not a true segment on account of not arising in the embryo from teloblast areas as other segments. It never carries any appendages, but a forked "tail" called the caudal furca may be present. The shape and composition of the telson differs between arthropod groups. Crustaceans In lobsters, shrimp and other decapods, the telson, along with the uropods, forms the tail fan. This is used as a paddle in the caridoid escape reaction ("lobstering"), whereby an alarmed animal rapidly flexes its tail, causing it to dart backwards. Krill can reach speeds of over 60 cm per second by this means. The trigger time to optical stimulus is, in spite of the low temperatures, only 55 milliseconds. In the Isopoda and Tanaidacea (superorder Peracarida), the last abdominal b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Elytra
An elytron (; ; , ) is a modified, hardened forewing of beetles (Coleoptera), though a few of the true bugs (Hemiptera) such as the family Schizopteridae are extremely similar; in true bugs, the forewings are called hemelytra (sometimes alternatively spelled as "hemielytra"), and in most species only the basal half is thickened while the apex is membranous, but when they are entirely thickened the condition is referred to as "coleopteroid". An elytron is sometimes also referred to as a shard. Description The elytra primarily serve as protective wing-cases for the hindwings underneath, which are used for flying. To fly, a beetle typically opens the elytra and then extends the hindwings, flying while still holding the elytra open, though many beetles in the families Scarabaeidae and Buprestidae can fly with the elytra closed (e.g., most Cetoniinae; ). In a number of groups, the elytra are reduced to various degrees, (e.g., the beetle families Staphylinidae and Ripiphoridae), or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maxilla (arthropod Mouthpart)
In arthropods, the maxillae (singular maxilla) are paired structures present on the head as mouthparts in members of the clade Mandibulata, used for tasting and manipulating food. Embryologically, the maxillae are derived from the 4th and 5th segment of the head and the maxillary palps; segmented appendages extending from the base of the maxilla represent the former leg of those respective segments. In most cases, two pairs of maxillae are present and in different arthropod groups the two pairs of maxillae have been variously modified. In crustaceans, the first pair are called maxillulae (singular maxillula). Modified coxae at the base of the pedipalps in spiders are also called "maxillae", although they are not homologous with mandibulate maxillae. Myriapoda Millipedes In millipedes, the second maxillae have been lost, reducing the mouthparts to only the first maxillae which have fused together to form a gnathochilarium, acting as a lower lip to the buccal cavity and the man ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Insect Mouthparts
Insects have 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 idependently. For example, mosquitoes and aphids (which are true bugs) both pierce and suck, however 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 to be conserved, with matching structures forming from matching primordia, and having the same evolutionary origin. However, even if structures are almost physically and functionally identical, they may not be homologous; their analogous functions and appearance might be the pr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
