Eighteen (67%) of 27 marked female Aedes triseriatus recaptured at ages 9-13 days were nulliparous. Fifty-five (96%) of 57 marked females recaptured at ages 15-31 days were uniparous (51) or biparous (4), indicating that nearly all females either obtained a bloodmeal or died before attaining 15 days of age. Sixty bloodseeking uniparous females ranged from 9-31 days of age at time of recapture; the mean age of 17 of these females from a group that was sampled throughout the period when uniparous, was recaptured in a woodlot separated from the experimental woodlot by 425m of cropland.