1. Wesenberg-Lund, C., Mem. de L'Acad. Royale des Sci. et des Lettres de Danemark, eighth series, 7, No. 1, 210 (1921).
2. Haeger, James S., Mosq. News, 15 (1), 21 (1955).
3. West, A. S., and Jenkins, D. W., Mosq. News, 11 (4), 217 (1951).
4. Sandholm, H. A., and Price, R. D., Mosq. News, 22 (4), 346 (1962).
5. Downs, W. G., and Arizmendi, A., Rev. Inst. Sal. Enf. Trop. Mex., 12, 21 (1951).