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Published in Zeitschrift für wissenschaftliche Insektenbiologie, in 1921, in volume 17, pages 47-48

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Published in Zeitschrift für wissenschaftliche Insektenbiologie, in 1921, in volume 17, pages 69-72

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Published in Zeitschrift für wissenschaftliche Insektenbiologie, in 1921, in volume 17, pages 130-132

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Published in Zeitschrift für wissenschaftliche Insektenbiologie, in 1921, in volume 17, pages 132-134

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Published in Zeitschrift für wissenschaftliche Insektenbiologie, in 1921, in volume 17, pages 165-176

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Published in Zeitschrift für wissenschaftliche Insektenbiologie, in 1921, in volume 17, pages 176-198

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