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Chromacris Colorata
''Chromacris'' is a genus of lubber grasshoppers in the family Romaleidae. The nine described species in ''Chromacris'' are found in Mexico, Central America, or South America. They often have bright aposematic colors and they are presumed to be toxic. The genus was first described in 1870 by Francis Walker. Species These nine species belong to the genus ''Chromacris'': * '' Chromacris colorata'' (Serville, 1838) * ''Chromacris icterus ''Chromacris'' is a genus of lubber grasshoppers in the family Romaleidae. The nine described species in ''Chromacris'' are found in Mexico, Central America, or South America. They often have bright aposematic colors and they are presumed to be ...'' (Pictet & Saussure, 1887) * '' Chromacris miles'' (Drury, 1770) * '' Chromacris minuta'' Roberts & Carbonell, 1982 * '' Chromacris nuptialis'' (Gerstaecker, 1873) * '' Chromacris peruviana'' (Pictet & Saussure, 1887) * '' Chromacris psittacus'' (Gerstaecker, 1873) * '' Chromacris speciosa'' ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chromacris Psittacus
''Chromacris psittacus'' is a species of grasshopper from the genus ''Chromacris ''Chromacris'' is a genus of lubber grasshoppers in the family Romaleidae. The nine described species in ''Chromacris'' are found in Mexico, Central America, or South America. They often have bright aposematic colors and they are presumed to be ...''. Nymphs are red and black in coloration, and often remain in groups, both traits that increase their aposematic signaling to predators. Adults have orange hind wings that similarly function to surprise predators. References Romaleidae Insects described in 1873 {{Romaleidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Francis Walker (entomologist)
Francis Walker (31 July 1809 – 5 October 1874) was an English entomologist. He was born in Southgate, London, on 31 July 1809 and died at Wanstead, England on 5 October 1874. He was one of the most prolific authors in entomology, and stirred controversy during his later life as his publications resulted in a huge number of junior synonyms. However, his assiduous work on the collections of the British Museum had great significance. Between June 1848 and late 1873 Walker was contracted by John Edward Gray Director of the British Museum to catalogue their insects (except Coleoptera) that is Orthoptera, Neuroptera, Hemiptera, Diptera, Lepidoptera and Hymenoptera. Walker largely accomplished this and (Edwards, 1870) wrote of the plan and by implication those who implemented it “It is to him raythat the Public owe the admirable helps to the study of natural history which have been afforded by the series of inventories, guides, and nomenclatures, the publication of which beg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Romaleidae
The Romaleidae or lubber grasshoppers are a family of grasshoppers, based on the type genus ''Romalea''. The species in this family can be found in the Americas. Tribes and selected genera The Orthoptera Species File Online database lists two subfamilies: Bactrophorinae Auth. Amédégnato, 1974;Amédégnato (1974) ''Acrida'' 3(3): 199. distribution: central and tropical South America. * Bactrophorini (Amédégnato, 1974) ** '' Andeomezentia'' Amédégnato & Poulain, 1994 ** '' Bactrophora'' Westwood, 1842 ** '' Bora'' Amédégnato & Descamps, 1979 ** '' Cristobalina'' Rehn, 1938 ** '' Hyleacris'' Amédégnato & Descamps, 1979 ** '' Mezentia'' Stål, 1878 ** '' Panamacris'' Rehn, 1938 ** '' Rhicnoderma'' Gerstaecker, 1889 ** '' Silacris'' Amédégnato & Descamps, 1979 * Ophthalmolampini (Descamps, 1977) ** '' Adrolampis'' Descamps, 1977 ** '' Aphanolampis'' Descamps, 1978 ** '' Apophylacris'' Descamps, 1983 ** '' Caenolampis'' Descamps, 1978 ** '' Chromolampis'' Descamps, 1977 * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aposematic
Aposematism is the advertising by an animal to potential predators that it is not worth attacking or eating. This unprofitability may consist of any defences which make the prey difficult to kill and eat, such as toxicity, venom, foul taste or smell, sharp spines, or aggressive nature. These advertising signals may take the form of conspicuous coloration, sounds, odours, or other perceivable characteristics. Aposematic signals are beneficial for both predator and prey, since both avoid potential harm. The term was coined in 1877 by Edward Bagnall Poulton for Alfred Russel Wallace's concept of warning coloration. Aposematism is exploited in Müllerian mimicry, where species with strong defences evolve to resemble one another. By mimicking similarly coloured species, the warning signal to predators is shared, causing them to learn more quickly at less of a cost. A genuine aposematic signal that a species actually possesses chemical or physical defences is not the only way to d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
