A weak tendency to “obligatory” diapause inCoccinella septempunctata from southern Spain

Diapausing adults ofC. septempunctata were collected in November from hibernation quarters in the mountains Sierra de Grazalema in southern Spain. In their progeny, the incidence of non-ovipositing females under long day of 20L∶4D and 25°C was 24%. Thus the tendency to an “obligatory” onset of diapause was much lower than in populations from central Europe… CONTINUE READING