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J. R.  Malloch, ?Some acalyptrate Diptera from the Marquesas Islands. Marquesan Insects - II?, Bulletin of the Bernice P. Bishop Museum, vol. 114, pp. 3-31, 1933.

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E.  Séguy, ?Contributions à l'étude de la faune du Mozambique. Voyage de M.M. Lesne (1928-1929) 13e note. - Diptères (2e partie)?, Memórias e estudos do Museu zoológico da Universidade de Coimbra, vol. 67, pp. 5-80, 1933.

W. L.  Jellison and Philip, C. B., ?Faunae of nests of the magpie and crow in western Montana?, Canadian Entomologist, vol. 65, pp. 26-31, 1933.