| Polistes erythrocephalus ： ウィキペディア英語版|
''Polistes erythrocephalus'' is a species of paper wasp in the subfamily Polistinae of family Vespidae found in Central and South America. ''P. erythrocephalus'' is a eusocial wasp, meaning that it possesses both reproductive and non-reproductive castes. The cooperation between the two castes to raise young demonstrates the altruistic nature of these wasps.〔 ''P. erythrocephalus'' exhibits a four-stage colony cycle, as do many other ''Polistes'' wasps. This species generally feeds on larvae, occasionally their own, and is preyed upon by species such as army ants.
== Taxonomy and phylogeny ==
Polistes scholars such as K. Yoshikawa, Joseph Charles Bequaert, and Mary Jane West-Eberhard, originally considered ''Polistes erythrocephalus'' to be a sub-species of ''Polistes canadensis.'' For this reason, much of the research done on ''P. erythrocephalus'' has been classified under ''P. canadensis.'' Additionally, it was left out of Yoshikawa's list of ''Polistes'' species around the world in 1963. More recently however ''P. erythrocephalus'' has been recognized as a separate species by Owain Richards though it is sometimes still referred to as ''Polistes canadensis erythrocephalus''. Its closest relatives are ''Polistes canadensis'', ''Polistes annularis'', and ''Polistes infuscatus'' 〔
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