Abstract
Some morphological and biological characteristics of Badamia exclamationis (Fabricius) were studied on the plant Hiptage benghalensis (L.) Kurz under laboratory and net house conditions at the Department of Plant Protection, College of Agriculture, Can Tho University. Female adults of B. exclamationis began laying eggs 3–4 days after emergence, with an average incubation period of 3.06 days. Larval stage consists of 5 instars with development times of 1.29; 2.00; 1.97; 2.74 and 5.77 days, respectively. The pupal stage lasted for an average of 7.43 days, completing the life cycle in 21–37 days (average 27.46 days). The egg hatching rate was 70%, and the survival rate of the post-egg stages was over 85%. A female laid an average of 104.8 eggs. Damages caused by larvae of B. exclamationis on leaves of H. benghalensis were describeded in details.