Page 107 - Primary Six Notes

Disadvantages of butterflies and moths

1. Their larva/caterpillars feed on leaves of crops / plants de-
stroying them (crop pests)

2. Caterpillars have bristle hairs which can burn and cause ir-

ritation itching or wounds o the skin.

Incomplete metamorphosis

This is a life cycle which involves three stages i.e.

Eggs – Nymph – Adult (imago)

Diagram showing incomplete metamorphosis

- 7 weeks

% nymph
e-**J
egg

9-13 months
(moults S times)

adult