LIFE HISTORY, BEHAVIOR AND MORPHOLOGY OF THE IMMATURE STAGES OF ENOCHRUS QUADRIPUNCTATUS HERBST IN THE LABORATORY (COLEOPTERA: HYDROPHILIDAE) I- LIFE HISTORY AND BEHAVIOR

Abstract
The life history of Enochrus quadripunctatus Herbst was studied in the
laboratory. The duration of each developmental stage, larval behavior, and preimaginal
mortality rate were determined. It takes the insect a total of 43 days
from hatching to reach the adult stage, with a high mortality rate in the first
stadium. The mortality rate decreases as the beetle passes through the immature
stages. Although the species is basically similar to the other hydrophilids
studied thus far, some differences with those reared in the laboratory, such as
time of each developmental stage, larval behavior, and mortality rate have been
observed.