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Episyrphus Viridaureus
''Episyrphus viridaureus'' is a species of hoverfly. Morphology This hoverfly has orange yellow body with narrow dark bands at the abdomen. The upper side of the thorax covered with black metallic shield and the rest is covered with orange-yellow hair. Between the dark purple eyes is a metallic blue part at the forehead. Its size is up to 35 mm, typically 10–20 mm.http://bugguide.net/node/view/196 The coloration of the abdomen is markedly temperature-dependent, with anterior and posterior bands thicker when pupa, pupae were reared at 15° instead than 25°. Conversely, colour of antennae, marking on the lunule, extent of microtrichia on the alula, sternal markings and «the 'theme' of abdominal patterns» are independent from temperature. Range It occurs on the east coast of Australia, where it is the most frequently collected ''Episyrphus'' species, from the Iron Range, Queensland, Iron Range in northern Queensland up to south of Sydney; it also occurs in Malaysia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Christian Rudolph Wilhelm Wiedemann
Christian Rudolph Wilhelm Wiedemann (7 December 1770 in Brunswick – 31 December 1840 in Kiel) was a German physician, historian, naturalist and entomologist. He is best known for his studies of world Diptera, but he also studied Hymenoptera and Coleoptera, although far less expertly. Biography Wiedemann’s father, Conrad Eberhard Wiedemann (1722–1804) was an art dealer and his mother, Dorothea Frederike (née Raspe) (1741–1804) was the daughter of an accountant in the Royal Mining Service and also interested in the arts. After his education in Brunswick, he matriculated in 1790 to the Faculty of Medicine at the University of Jena where he was a contemporary of the poet Friedrich von Hardenberg. While attending university, Wiedemann, was one of the many pupils of Johann Friedrich Blumenbach, and travelled to Saxony and Bohemia. He obtained his doctoral degree in 1792 with a thesis entitled ''Dissertatio inauguralis sistens vitia gennus humanum debilitantia''. He then w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |