Field-collected female alfalfa weevils,Hypera postica(Gyllenhal), from an area with a low population (New Jersey) produced an average life total of nearly 4200 eggs, while weevils from areas with high populations (Kentucky arid Indiana) produced somewhat fewer eggs (ca. 3100 and 3250 eggs). It is thus unlikely that the much smaller populations of weevils in New Jersey are caused by a lower fecundity of the alfalfa weevil; they are probably a result of the much higher levels of parasitism there. The average daily production per female weevil was 48 eggs. Most eggs were laid during the 1st 60 days of the experiment.