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Notes synonyiniques et geographiques sur les Heniipteres Palearc- 



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Essai Monogrnpliiqi;e sur le genre Tiiqonosoma. 8vo, Gncn^ 1889. 



[Revue d'Entonid]. 1889.] 



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Synopsis des Nysins Palearctiques. 8vo, Cnen, 1890. 



[Revue d'EntomoI. 1890.] 



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Synopsis of tlie genus Srohqjustethns. 8vo, London, 1891. 



[Entoinol. Montlil. Mag. xxvii.] 

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Fauna Regni Hungaria'. Heniiptera. 8vo, Bndupcd, 1897. 



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Revision of the A2jhelininai of Nortli America, a subfamily of 



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The Grass and Grain Joint-Worm Flies and their Allies : a consideia- 



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The use of Steam Apparatus for Spraying. 



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[Farmers' Bull. U. S. Dep. Agric, Div. Ent. 47.] 



A Study in Insect Parasitism. 8vo, Washington, 1897. 



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The Gipsy Moth in America. 8vo, Washington, 1897. 



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On some new Parasitic Insects of the sulifainily Eucyrtinas. 



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