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— Neue Phlonothripiden-Genera. Zool. Anzeiger, Bd. XXXVIII, 

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— Über Thripsgallen und Gallenthripse. Zentralblatt für Bakt., 

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— Revision der Gattung Heliothrips Haliday. Entom. Rund- 

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— Gallenbevvohnende Thysanopteren aus Java. Marcellia, 

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Ho od Dougl., New Genera and spec. of Illinois Thysanoptera. 

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— A new Gen. and three nevv spec. of North-Am. Thys. 

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— Three new Phloeothripidae (Thysanoptera) from Texas 

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— New Genera and Spec. of North-Am. Thysanopt. from the 

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Moulton Dudl., The pearthrips. U. S. D. A., B. E. Bul. 68, 

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— Synopsis, Catalogue and Bibliography of North American 

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