B. R. I. T. O.  A. DACUNHA, ?Studies on cytology and differentation in Sciaridae I. Chromosome changes included by a Gregarine in Trichosia sp. (Diptera, Sciaridae)?, Caryologia: International Journal of Cytology, Cytosystematics and Cytogenetics, vol. 21, no. 3, pp. 41-47, 1968.