T. A.  Marshall, ?Les Braconides (supplément)?, in André, E. " Spécies des hyménoptères d'Europe et d'Algérie", vol. 5, Beaune (Côte d'Or): , 1897, pp. 1-635.

G.  Mantero, ?Description d'une nouvelle espece de Vipio Latr.?, Feuille des Naturalistes, vol. 27, p. 119, 1897.

W. H.  Harrington, ?Catalogue of the phytophagous and parasitic Hymenoptera of Vancouver Island.?, Canadian Entomologist, vol. 29, pp. 43-47, 1897.

F. H.  Chittenden, ?Insect injury to chestnut and pine trees in Virginia and neighbouring states.?, United States Department of Agriculture. Bulletin. Bur. Ent, vol. 7, pp. 67-75, 1897.

F. H.  Chittenden, ?The two-lined chestnut borer (Agrilus bilineatus Weber).?, United States Department of Agriculture. Circular. Bur. Ent, vol. 24, pp. 1-8, 1897.