Gray butterfly is a small butterfly, with a very rich variety of species diversity, accounting for 30% -40% of all butterflies. In addition to a very small number, the vast majority of the distribution of species has a strong regional, sensitive to changes in the surrounding environment, its species and quantity fluctuations to a certain extent, can indirectly reflect the changes in the surrounding plants. Therefore, in the terrestrial biodiversity conservation, the gray butterfly is used as an important indicator of ecological environment monitoring.
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