Experiment 1.

The effects of calendar date (t) and burrow siting on the numbers of tsetse puparia collected from trays placed in 16 burrows at sites 6 to 9 at Rekomitjie Research Station, 28 August—8 November 1998. The dependent variable was loge(n+1) where n was the number of puparia collected per day. Site 6 was used as the reference for estimating site effects. R2 for the models were 0.62 and 0.49 for G. m. morsitans and G. pallidipes, respectively. Experiment 1.