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myrmica
''Myrmica'' is a genus of ants within the subfamily Myrmicinae.〔 It is widespread throughout the temperate regions of the Holarctic and high mountains in Southeast Asia. The genus consists of around 200 known species, and additional subspecies, although this figure is likely only to rise as soon as Chinese and Neartic fauna lists are revised.
==Inquilines==
The genus contains a number of inquiline species (commensal symbionts), other ''Myrmica'' species that manage to invade the nest of their host. Subsequently, they use hormones to manipulate the host colony in such a way that eggs of the host queen develop into workers, and parasite brood into sexuals. Hence, the parasite is not able to sustain a colony of its own, but uses host resources instead.
Similarly, larvae of the butterfly genus ''Maculinea'' (Lepidoptera, family Lycaenidae) live inside ''Myrmica'' nests where they are either directly fed by ants or prey upon ant brood. This parasitism is employed primarily by ''Phengaris'' butterflies with specific species such as ''Phengaris arion'' forming predatory relationships.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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