Caerostris
''Caerostris'', sometimes called bark spiders, is a genus of orb-weaver spiders first described by Tamerlan Thorell in 1868. Most species are found in south eastern Africa and neighboring Madagascar. Taxonomy The genus ''Caerostris'' was erected in 1868 by Tamerlan Thorell with the type species being ''Epeira mitralis'' Vinson, 1863, which Thorell transferred to ''Caerostris mitralis''. Up to 2009, only 11 species had been described. A further species, ''C. darwini'', was described in 2010, and six more species in 2015. Two of the "species", ''C. sexcuspidata'' and ''C. sumatrana'', will probably need to be divided further to produce genetically uniform species. A molecular phylogenetic study of 12 of the species of ''Caerostris'' produced the phylogenetic tree shown below, showing that the African and Madagascan species form a monophyletic In cladistics for a group of organisms, monophyly is the condition of being a clade—that is, a group of taxa compo ...
[...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]