Elophila sp.? africalis Hampson (Lepidoptera: Pyralidae): a new pest of azolla in Sierra Leone.
An outbreak of leaf-feeding insect larvae was observed on Azolla pinnata var. imbricata [A. imbricata] in Sierra Leone in 1985. The insect was identified as a species of Elophila, possibly E. africalis. This was the first record of Elophila on azolla in Sierra Leone. Preliminary studies on the biology of the insect showed that females laid eggs in batches of 16-165 on the adaxial side of the floating azolla frond, and larvae hatched 4 days later.