|
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] |
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] |
Genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus comes above species and below family (taxonomy), family. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus. :E.g. ''Panthera leo'' (lion) and ''Panthera onca'' (jaguar) are two species within the genus ''Panthera''. ''Panthera'' is a genus within the family Felidae. The composition of a genus is determined by taxonomy (biology), taxonomists. The standards for genus classification are not strictly codified, so different authorities often produce different classifications for genera. There are some general practices used, however, including the idea that a newly defined genus should fulfill these three criteria to be descriptively useful: # monophyly – all descendants ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 toxic. The genus was first described in 1870 by Francis Walker (entomologist), Francis Walker. Species These nine species belong to the genus ''Chromacris'': * ''Chromacris colorata'' (Serville, 1838) * ''Chromacris icterus'' (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'' (Thunberg, 1824) * ''Chromacris trogon'' (Gerstaecker, 1873) References Further reading * External links * Romaleidae Taxa named by Francis Walker (entomologist) Taxa described in 1870 {{romaleidae-stub ... [...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] |
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] |
