“…In the fifth period, from 1918 to 1943, no major discovery was made, but many details were added to the general scheme of the fly's biology -the male (203, 210) and the female (155, 210) genitalia were described, the common characteristics of the vectors analyzed (247) and a theory on the intermediate oviposition suggested (214). The first attempts to control the fly (160,161,162,165), some new records of vectors (157, 163, 173, 174, 195, 196, 197, 206, 216, 220, 22o, 227, 241), morphological details (171) and de&criptions of myiases of man aiíd animais (151,152,153,164,168,170,174,178,179,180,181,182,184,186,187,188,191,193,198,199,207,208,219,221,228,230,231,233,237,244) were published. 6.…”