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Gahan, A.B. 1918 (27 Sep 1918), Propachyneuron Girault (Hymenoptera, Chalcidoidea). Proceedings of the Entomological Society of Washington
20:66
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Keywords: Taxonomy
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Gahan, A.B. 1918 (04 Dec 1918), A synopsis of the species belonging to the chalcidoid genus Rileya Ashmead. Proceedings of the Entomological Society of Washington
20:136-150
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Keywords: Revision; Taxonomy
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Gahan, A.B. 1919 (24 Feb 1919), A new genus of chalcid wasp belonging to the family Eulophidae. Proceedings of the Entomological Society of Washington
21(1):2-4
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Keywords: Taxonomy
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Gahan, A.B. 1919 (26 Apr 1919), New reared parasitic Hymenoptera, with some notes on synonymy. Proceedings of the United States National Museum
55:113-128
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Keywords: Hosts; Taxonomy
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Gahan, A.B. 1919 (22 May 1919), Notes on some genera and species of chalcid flies belonging to the Aphelininae with description of a new species. Proceedings of the United States National Museum
55(2279):403-407
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Keywords: Hosts; Taxonomy
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Gahan, A.B. 1919 (02 Jul 1919), Some chalcid-wasps reared from cecidomyid galls. Annals of the Entomological Society of America
12(2):159-170
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Keywords: Hosts; Taxonomy
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Gahan, A.B. 1919 (20 Oct 1919), Report on a small collection of Indian parasitic Hymenoptera. Proceedings of the United States National Museum
56:513-524
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Keywords: Taxonomy
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Gahan, A.B. 1920, Black grain-stem sawfly of Europe in the United States. Bulletin of the United States Department of Agriculture
834:18pp
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Gahan, A.B. 1920, New reared parasitic Hymenoptera from the Philippines. Philippine Journal of Science
17:343-351
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Keywords: Hosts; Taxonomy
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Gahan, A.B. 1921 (10 Feb 1921), On the identity of several species of Chalcidoidea (Hymenoptera). Proceedings of the Entomological Society of Washington
22(9):235-243
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Keywords: Taxonomy
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