title: Physiological age determination in female Stomoxys calcitrans Linnaeus (Diptera: Muscidae).
abstract: The primary sex organs of female Stomoxys calcitrans consist of a single pair of ovaries, each containing 80-100 polytrophic ovarioles. A natural population of these females can be grouped according to age into different reproductive categories. The technique described below defines these categories and enables one to distinguish between newly-emerged, nulliparous and uniparous females and females that have reproduced twice (biparous) or more (pauciparous).
mesh_terms: D000818:Animals; D004175:Diptera / Q000033:anatomy & histology* / Q000166:cytology; D005260:Female; D009865:Oocytes / Q000254:growth & development / Q000648:ultrastructure; D010053:Ovary / Q000033:anatomy & histology / Q000166:cytology / Q000648:ultrastructure