Sea slugs
Parasitic worms
Planaria
III. _Acalephæ_, abundant
Corals little known

CHAP. VI.

INSECTS.

Profusion of insects in Ceylon
Imperfect knowledge of
I. _Coleoptera_.--Beetles
Scavenger beetles
Coco-nut beetles
Tortoise beetles
II. _Orthoptera_.--Mantis and leaf-insects
Stick-insects
III. _Neuroptera_--Dragon flies
Ant-lion
White ants
Anecdotes of their instinct and ravages (text and note)
V. _Hymenoptera_.--Mason Wasps
Wasps
Bees
Carpenter Bee
Ants
Burrowing ants
VI. _Lepidoptera_.--Butterflies
Sylph