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The type-material of North American clearwing moths (Lepidoptera: Sesiidae)
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Government Document Online Book -
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The type-material of Central and South American clearwing moths (Lepidoptera, Sesiidae)
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Government Document Online Book -
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Type specimens in the Hans Eggers collection of Scolytid beetles (Coleoptera)
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Government Document Online Book -
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An introduction to the botanical type specimen register /
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Government Document Online Book