The relationship between body size and fecundity of adult female Glyptotendipes paripes collected along southern shore areas of Lake Monroe, Sanford, FL, was studied by measuring wing length and examining ovaries, follicular development, and number of eggs/egg mass. Wing length of nulliparous, as well as parous females, had a significant (P < 0.01) linear relationship with dry body weight. Large females had a significantly (P < 0.01) higher number of follicles and eggs/egg mass than small females. No correlation existed between wing length and parity nor between wing length and age composition of field populations sampled between January and June 1993.