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Dasineura Urticae
The nettle pouch gall develops in leaf veins, leaf petioles, flower stalks and sometimes the stem of ''Urtica dioica'' and ''Urtica urens''. This structure is caused by the gall midge Cecidomyiidae is a family of flies known as gall midges or gall gnats. As the name implies, the larvae of most gall midges feed within plant tissue, creating abnormal plant growths called galls. Cecidomyiidae are very fragile small insects us ... or gnat ''Dasineura urticae'', also spelled ''Dasyneura urticae''.Stubbs, Page 72 Synonyms are ''Perrisia urticae'' and ''Cecidomyia urticae''.Darlington, Page 141 Physical appearance of the galls The galls are irregularly shaped, smooth, often shiny, and coloured from purplish to pale green, exhibiting thickened walls, with a narrow slit-shaped opening, normally on the underside.Redfern, Page 467 The size is from 3–8 mm. A number of galls are often found next to each other on the same or different plant structures, and they may coalesce. The galls ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Edouard Perris
Edouard Perris full name Jean-Pierre Omer Anne Edouard Perris (1808 in Pau – 1878 in Mont-de-Marsan) was a French explorer and entomologist who specialised in Coleoptera and to a lesser extent Diptera and other orders. He was Chef de division à la préfecture des Landes. Perris was a Member of Société Entomologique de France. His collection is held by École nationale supérieure agronomique de Montpellier excepting Cicindelidae, Carabini und Lebiini which are held by Museum Dax, Landes Dax (; oc, Dacs; eu, Akize) is a commune in Nouvelle-Aquitaine, southwestern France, sub-prefecture of the Landes department. It is known as a spa destination, specialising in mud treatment for rheumatism and similar ailments. Dax is also kn .... Works partial list (prolific author) *Perris, E. (1839) Notice sur quelques Diptères nouveaux. ''Annales de la Société Entomologique de France'' 8: 47-57. *Perris, E. (1840) Observations sur les insectes que habitant les galles de lUle ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Urtica Dioica
''Urtica dioica'', often known as common nettle, burn nettle, stinging nettle (although not all plants of this species sting) or nettle leaf, or just a nettle or stinger, is a herbaceous perennial flowering plant in the family Urticaceae. Originally native to Europe, much of temperate Asia and western North Africa, it is now found worldwide, including New Zealand and North America. The species is divided into six subspecies, five of which have many hollow stinging hairs called trichomes on the leaves and stems, which act like hypodermic needles, injecting histamine and other chemicals that produce a stinging sensation upon contact ("contact urticaria", a form of contact dermatitis). The plant has a long history of use as a source for traditional medicine, food, tea, and textile raw material in ancient (such as Saxon) and modern societies. Description ''Urtica dioica'' is a dioecious, herbaceous, perennial plant, tall in the summer and dying down to the ground in winter. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Urtica Urens
''Urtica urens'', commonly known as annual nettle, dwarf nettle, small nettle, dog nettle, or burning nettle, is a herbaceous annual flowering plant species in the nettle family Urticaceae. It is native to Eurasia, including the Himalayan regions of Kalimpong, Darjeeling and Sikkim in India and can be found in North America, New Zealand and South Africa as an introduced species. It is reputed to sting more strongly than common nettle. Description Unlike the perennial and dioecious stinging nettle ''Urtica dioica'', ''Urtica urens'' is an annual plant, monoecious (with male and female flowers on the same plant) and generally much shorter. It can be distinguished from the stinging nettle by its more rounded leaves with coarser, deeper toothing and with the terminal tooth of similar length to the adjacent teeth. The lower leaves are shorter than their longer petioles and have stinging hairs only. Distribution The native distribution of ''Urtica urens'' includes most of Europe except ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gall Midge
Cecidomyiidae is a family of flies known as gall midges or gall gnats. As the name implies, the larvae of most gall midges feed within plant tissue, creating abnormal plant growths called galls. Cecidomyiidae are very fragile small insects usually only in length; many are less than long. They are characterised by hairy wings, unusual in the order Diptera, and have long antennae. Some Cecidomyiids are also known for the strange phenomenon of paedogenesis in which the larval stage reproduces without maturing first. In some species, the daughter larvae consume the mother, while in others, reproduction occurs later on in the egg or pupa. More than 6,650 species and 830 genera are described worldwide, though this is certainly an underestimate of the actual diversity of this family. A DNA barcoding study published in 2016 estimated the fauna of Canada alone to be in excess of 16,000 species, hinting at a staggering global count of over 1 million cecidomyiid species that have yet ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dasineura Urticae On Urtica Dioica
''Dasineura'' is a genus of midges in the family Cecidomyiidae, some of which cause galls on plants such as ''Dasineura crataegi'' on hawthorn ('' Crataegus monogyna'') and ''Dasineura fraxinea ''Dasineura'' is a genus of midges in the family Cecidomyiidae, some of which cause galls on plants such as ''Dasineura crataegi'' on hawthorn (''Crataegus monogyna'') and '' Dasineura fraxinea'' on ash (''Fraxinus excelsior ''Fraxinus excel ...'' on ash ('' Fraxinus excelsior''). See also * List of ''Dasineura'' species File:Larva Dasineura salicifoliae in gall.jpg, Larva of ''Dasineura salicifoliae'' in gall File:Galls Dasineura salicifoliae.jpg, Galls of ''Dasineura salicifoliae'' File:Dasineura tumidosae larvae closeup2.jpg, Larvae of ''Dasineura tumidosae'' File:Dasineura pellex larva.jpg, Larva of ''Dasineura pellex'' File:Dasineura carbonaria larva.jpg, Larva of ''Dasineura carbonaria'' File:Dasineura brassicae adult (24562493456).jpg, ''Dasineura brassicae'', adult Fil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cecidomyiidae Laying Eggs
Cecidomyiidae is a family of diptera, flies known as gall midges or gall gnats. As the name implies, the larvae of most gall midges feed within plant tissue, creating abnormal plant growths called galls. Cecidomyiidae are very fragile small insects usually only in length; many are less than long. They are characterised by hairy wings, unusual in the Order (biology), order Fly, Diptera, and have long Antenna (biology), antennae. Some Cecidomyiids are also known for the strange phenomenon of paedogenesis in which the larval stage reproduces without maturing first. In some species, the daughter larvae consume the mother, while in others, reproduction occurs later on in the egg or pupa. More than 6,650 species and 830 Genus, genera are described worldwide, though this is certainly an underestimate of the actual diversity of this family. A DNA barcoding study published in 2016 estimated the fauna of Canada alone to be in excess of 16,000 species, hinting at a staggering global cou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cecidomyiinae
The Cecidomyiinae are a subfamily of flies often called gall midges or gall gnats. This subfamily is best known for its members that induce galls on plants, but there are also many species that are fungivorous, parasitoids, or predacious as maggots. Systematics Cecidomyiinae - supertribes, tribes, and genera: *Supertribe Asphondyliidi **Tribe Asphondyliini ***''Asphondylia'' Loew, 1850 **Tribe Kiefferiini ***'' Kiefferia'' Mik, 1895 **Tribe Polystephini ***''Polystepha'' Kieffer, 1897 **Tribe Schizomyiini ***'' Placochela'' Rübsaamen, 1916 ***''Schizomyia'' Kieffer, 1889 *Supertribe Cecidomyiidi **Tribe Anadiplosini **Tribe Aphidoletini **Tribe Cecidomyiini ***'' Acodiplosis'' Kieffer, 1895 ***'' Ametrodiplosis'' Rübsaamen, 1910 ***''Anabremia'' Kieffer, 1912 ***'' Anisostephus'' Rübsaamen, 1917 ***'' Antichiridium'' Rübsaamen, 1911 ***'' Aphidoletes'' Kieffer, 1904 ***'' Arthrocnodax'' Rübsaamen, 1895 ***'' Atrichosema'' Kieffer, 1904 ***'' Blastodiplosis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Insects Described In 1840
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. Inse ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
