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Sphegina Bracon
''Sphegina bracon'' is a species of hoverfly in the family Syrphidae found in Vietnam along with specimens of '' S. (A.) lucida'', '' S. (A.) nigrotarsata'', '' S. (A.) spenceri'', '' S. (A.) verrucosa'', and '' S. (A.) vietnamensis''. Etymology The names ‘bracon’ refers to the species of wasp the fly resembles. Description In male specimens, body length is 5.9 to 7.4 millimeters and wing length is 4.2 to 5.0 millimeters. The face is black, ventral half brown-yellow; concave with weakly developed frontal prominence and long pilose along the eye-margin. The gena and mouth edge are yellow with a large subtriangular non-pollinose shiny area; frons and vertex black with a semi-circular area posterior of the lunula non-pollinose and shiny; occiput black with light yellow pilose; antenna yellow to brown-yellow with black setae dorsally on scape and pedicel; thorax dark brown to black; scutellum black, semicircular, entirely shiny; pro- and mesoleg yellow, tarsomeres 4–5 b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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A Creative Commons (CC) license is one of several public copyright licenses that enable the free distribution of an otherwise copyrighted "work".A "work" is any creative material made by a person. A painting, a graphic, a book, a song/lyrics to a song, or a photograph of almost anything are all examples of "works". A CC license is used when an author wants to give other people the right to share, use, and build upon a work that the author has created. CC provides an author flexibility (for example, they might choose to allow only non-commercial uses of a given work) and protects the people who use or redistribute an author's work from concerns of copyright infringement as long as they abide by the conditions that are specified in the license by which the author distributes the work. There are several types of Creative Commons licenses. Each license differs by several combinations that condition the terms of distribution. They were initially released on December 16, 2002, by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bracon (wasp)
''Bracon'' is a genus of wasps in the Braconidae, a family of parasitoid wasps. There are several hundred described species but there are thousands still undescribed.Ameri, A., et al. (2013)Study of the genus ''Bracon'' Fabricius, 1804 (Hymenoptera: Braconidae) of Southern Iran with description of a new species.''Zootaxa'' 3754(4), 353-80. The genus is cosmopolitan, distributed throughout the world, with most of the described species occurring in the Palearctic realm. These wasps are mostly ectoparasitoids, with the larvae developing on the outside of the body of the host. Recorded hosts include the larvae of many species of lepidopterans, beetles, flies, hymenopterans, and true bugs. They are idiobionts, halting the development of the host when they lay eggs on its body. Some ''Bracon'' wasps are specific to one host species, and some are known to utilize many different hosts.Žikić, V., et al. (2012)Checklist of the genus ''Bracon'' (Hymenoptera: Braconidae) in Serbia. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brachyopini
The Brachyopini (or Chrysogastrini) is a tribe of hoverflies. Unlike many members of this family these flies are generally darker and less colourful though some genera contain species with an attractive metallic lustre e.g. ''Chrysogaster''. Some like '' Brachyopa'' are associated with sap runs where their larvae feed on decaying sap. Others are found in boggy areas where their often semiaquatic larvae feed on decaying organic matter. List of genera Subtribe: Brachyopina *'' Brachyopa'' Meigen, 1822 *'' Cacoceria'' Hull, 1936 *'' Chromocheilosia'' Hull, 1950 *''Chrysogaster'' Meigen, 1803 *''Chrysosyrphus'' Sedman, 1965 *''Cyphipelta'' Bigot, 1859 *''Hammerschmidtia'' Fallén, 1817 *''Hemilampra'' Macquart, 1850 *''Lejogaster'' Rondani, 1857 *''Lepidomyia'' Loew, 1864 *''Liochrysogaster'' Stackelberg, 1924 *'' Melanogaster'' Rondani, 1857 *''Myolepta'' Loew, 1864 *''Orthonevra'' Macquart, 1829 *''Riponnensia'' Maibach, 1994 Subtribe: Spheginina *''Austroascia'' Thomps ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sphegina Furcillata
''Sphegina furcillata'' is a species of hoverfly in the family Syrphidae. Distribution Vietnam. References Brachyopini Insects described in 2018 Diptera of Asia {{Brachyopini-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arista (insect Anatomy)
In insect anatomy the arista is a simple or variously modified apical or subapical bristle, arising from the third antennal segment. It is the evolutionary remains of antennal segments, and may sometimes show signs of segmentation. These segments are called aristameres. The arista may be bare and thin, sometime appearing no more than a simple bristle; pubescent, covered in short hairs; or plumose, covered in long hairs. The presence of an arista is a feature of the Diptera (flies) suborder Brachycera and may be especially well-developed in some species. It is also present in some members of Hemiptera (true bugs), specifically in the suborder Auchenorrhyncha. The arista is often covered in multiple kinds of sensilla A sensillum (plural ''sensilla'') is an arthropod sensory organ protruding from the cuticle of exoskeleton, or sometimes lying within or beneath it. Sensilla appear as small hairs or pegs over an individual's body. Inside each sensillum there are ..., or sens ... [...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] |
Scutellum (insect Anatomy)
The scutellum is the posterior portion of either the mesonotum or the metanotum of an insect thorax; however, it is used almost exclusively in the former context, as the metanotum is rather reduced in most insect groups. In the Hemiptera, and some Coleoptera, the scutellum is a small triangular plate behind the pronotum and between the forewing bases. In Diptera and Hymenoptera the scutellum is nearly always distinct, but much smaller than (and immediately posterior to) the mesoscutum. File:Heteroptera morphology-d.svg, 26 = Heteroptera scutellum File:Housefly anatomy-key.svg, 6 = Diptera scutellum File:Coléoptère schématique.jpg, 9 = Coleoptera scutellum File:Scheme ant worker anatomy-numbered.svg, 10 = Formicidae scutellum See also * Scutoid A scutoid is a particular type of geometric solid between two parallel surfaces. The boundary of each of the surfaces (and of all the other parallel surfaces between them) either is a polygon or resembles a polygon, but is not nec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Antenna (biology)
Antennae ( antenna), sometimes referred to as "feelers", are paired appendages used for sensing in arthropods. Antennae are connected to the first one or two segments of the arthropod head. They vary widely in form but are always made of one or more jointed segments. While they are typically sensory organs, the exact nature of what they sense and how they sense it is not the same in all groups. Functions may variously include sensing touch, air motion, heat, vibration (sound), and especially smell or taste. Antennae are sometimes modified for other purposes, such as mating, brooding, swimming, and even anchoring the arthropod to a substrate. Larval arthropods have antennae that differ from those of the adult. Many crustaceans, for example, have free-swimming larvae that use their antennae for swimming. Antennae can also locate other group members if the insect lives in a group, like the ant. The common ancestor of all arthropods likely had one pair of uniramous (unbranched ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sphegina Vietnamensis
''Sphegina vietnamensis'' is a species of hoverfly in the family Syrphidae. Distribution Vietnam. References Brachyopini Insects described in 2018 Diptera of Asia {{Brachyopini-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Species
In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. Other ways of defining species include their karyotype, DNA sequence, morphology, behaviour or ecological niche. In addition, paleontologists use the concept of the chronospecies since fossil reproduction cannot be examined. The most recent rigorous estimate for the total number of species of eukaryotes is between 8 and 8.7 million. However, only about 14% of these had been described by 2011. All species (except viruses) are given a two-part name, a "binomial". The first part of a binomial is the genus to which the species belongs. The second part is called the specific name or the specific epithet (in botanical nomenclature, also sometimes i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sphegina Verrucosa
''Sphegina verrucosa'' is a species of hoverfly in the family Syrphidae. Distribution Vietnam. References Brachyopini Insects described in 2018 Diptera of Asia {{Brachyopini-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sphegina Spenceri
''Sphegina spenceri'' is a species of hoverfly in the family Syrphidae. Distribution Vietnam. References Brachyopini Insects described in 2018 Diptera of Asia {{Brachyopini-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
