Chapter V.—The Great Change.—An Insect Prisoner—Escape of the Cossus—Escape of a Fly—A guide-line to the Captive—Cocoon of Emperor Moth—Escape backwards—Chemical solvent—Escape of Ants—Huber's Ant-hill—Assistant Ants—Aquatic Insects—The time of Peril—Blood-Worms—A curious spectacle—The Dragon-Fly—Phenomena of the Change—The Insect new-horn—Curious facts about Pupæ
PART IV.—THE IMAGO.
Chapter I.—The New-born Perfect Insect.—The Resurrection—Meaning of the word Imago—Curious aspect of New-born Insect—Conclusion of the Dragon-Fly's History—Structure of a Wing—how expanded—Deformed Wings—Exception in the Ephemeræ—Dance of the Ephemeræ—Insects without Wings—Showers and Stains of Blood—Aphis-Lion Fly—Insects in the Imago state do not increase in size
Chapter II.—The Structure and Organs of the Imago.—Anatomy and Physiology—Insects have not Bones—Leather-coated Jack—The Head and Thorax—The Eyes—simple and compound—Wonders of an Eye—Anatomy of the Eye—Immense number of Eyes—Remarkable Provision—Experiments on the Eyes of Bees—Beauty of the Eyes—The Antennæ—their Function, perhaps the Nose—Insects Weather-wise—Insects in Rain—Organs of Speech—Anecdote of Bees—Various Functions of Antennæ—The Mouth in Insects—Parts of the Mouth—Spiral Tube of the Butterfly—Taste and Smell in Insects—The Trunk—Wings—Membranous—Scale covered—Wing-Cases—Experiments on Flying—Painted Wings—The glory of the Butterfly—The Legs of Insects—Cleanliness of Insects—The Water Boatman—Kangaroo Beetle—The Abdomen—The Sting of the Bee—Insect with a Leg in its Tail
Chapter III.—Respiration of the Imago.—Experiments upon the Breathing of Insects—Chloroform—Coal-gas—their Effects—Contest between a Spider and a Blue-Bottle Fly—Air-Pipes of Insects—Multitude of Air-Tubes—Circulation of Blood in Insects—An Insect's Pulse