title: Observations on age-grouping the tsetse fly, Glossina pallidipes, by wing-fray and ovarian dissection, on the south Kenya coast.
abstract: Female Glossina pallidipes from biconical trap collections at five localities on the south Kenya coast were age-grouped by wing-fray and ovarian condition, and their trypanosome infection rates determined. From simultaneous application of the two age-grouping methods to 991 female tsetse, 17 reproductive age-categories were recognized. Separation into these categories was supported by a highly significant correlation between estimated age and proportion of tsetse uninfected by trypanosomes. Limitations of current age-grouping methods for tsetse are discussed.
mesh_terms: D000367:Age Factors; D000818:Animals; D005260:Female; D007630:Kenya; D010053:Ovary / Q000033:anatomy & histology; D012098:Reproduction; D014345:Trypanosoma / Q000302:isolation & purification; D014370:Tsetse Flies / Q000033:anatomy & histology* / Q000469:parasitology