"royal walnut moth" meaning in English

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      "expansion": "royal walnut moth (plural royal walnut moths)",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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        {
          "kind": "lifeform",
          "langcode": "en",
          "name": "Saturniid moths",
          "orig": "en:Saturniid moths",
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      ],
      "glosses": [
        "Citheronia regalis, a type of moth. Its caterpillar is the hickory horned devil"
      ],
      "id": "en-royal_walnut_moth-en-noun-xQkqQsDu",
      "links": [
        [
          "Citheronia regalis",
          "Citheronia regalis#Translingual"
        ],
        [
          "moth",
          "moth"
        ],
        [
          "hickory horned devil",
          "hickory horned devil"
        ]
      ],
      "wikipedia": [
        "royal walnut moth"
      ]
    }
  ],
  "word": "royal walnut moth"
}

{
  "forms": [
    {
      "form": "royal walnut moths",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
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  "lang_code": "en",
  "pos": "noun",
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        "Citheronia regalis, a type of moth. Its caterpillar is the hickory horned devil"
      ],
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        [
          "Citheronia regalis",
          "Citheronia regalis#Translingual"
        ],
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          "moth",
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          "hickory horned devil",
          "hickory horned devil"
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      "wikipedia": [
        "royal walnut moth"
      ]
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  ],
  "word": "royal walnut moth"
}