A toothed slit of a spiracle of the respiratory system of an insect.

Spiracles

A toothed slit of a spiracle of the respiratory system of an insect.

A spiracle of the respiratory system of an insect.

Spiracles

A spiracle of the respiratory system of an insect.

Conical spiracle set in a pit, protected by crossed hairs.

Spiracles

Conical spiracle set in a pit, protected by crossed hairs.

Crossed hair section of a spiracle in the respiratory system of an insect.

Spiracles

Crossed hair section of a spiracle in the respiratory system of an insect.

A lip-like spiracle of the respiratory system of an insect.

Spiracles

A lip-like spiracle of the respiratory system of an insect.

An unprotected round spiracle of an insect's respiratory system.

Spiracles

An unprotected round spiracle of an insect's respiratory system.

An unprotected slit-like spiracle of an insect's respiratory system.

Spiracles

An unprotected slit-like spiracle of an insect's respiratory system.

"They resemble so exactly dry sticks that it is impossible to tell the difference. It is an inoffensive insect, walks gently along the branches of trees, and likes to repose in the sun."

Stick Insect (Phasma Rossia)

"They resemble so exactly dry sticks that it is impossible to tell the difference. It is an inoffensive…

"The Tabanus Autumnalis is a common species, eight or nine lines in length, or a blackish color."

Tabanus Autumnalis

"The Tabanus Autumnalis is a common species, eight or nine lines in length, or a blackish color."

A tea set with insects swarming around it.

Tea Set

A tea set with insects swarming around it.

"The female attains to six inches in length, and weighs as much as thirty thousand workers. It is an increase in the size of the abdomen alone. She produces sixty eggs a minute, more than eighty thousand a day."

Termes Lucifugus, Female

"The female attains to six inches in length, and weighs as much as thirty thousand workers. It is an…

"The male weighs as much as thirty workers, and attains the length of nearly four-fifths of an inch."

Termes Lucifugus, Male

"The male weighs as much as thirty workers, and attains the length of nearly four-fifths of an inch."

"The soldiers are twice as long, and weigh as much as fifteen workers. They may be distinguished by their horned head and sharp pincers."

Termes Lucifugus, Soldier

"The soldiers are twice as long, and weigh as much as fifteen workers. They may be distinguished by…

"The workers are one fifth of an inch long; the body soft and of extreme delicacy, but the sharp mandibles are capable of attacking the hardest bodies."

Termes Lucifugus, Worker

"The workers are one fifth of an inch long; the body soft and of extreme delicacy, but the sharp mandibles…

The bean fly is found on many herbaceous plants. This fly is harmful to beans but is not easy to exterminate.

The Bean Fly

The bean fly is found on many herbaceous plants. This fly is harmful to beans but is not easy to exterminate.

The Flory-locust machine was a horse-drawn implement used by farmers to exterminate locust populations. This device was employed with moderate effect. Locusts would be startled into jumping as it rolled over them, and crushed in the moving belts.

The Flory-locust machine

The Flory-locust machine was a horse-drawn implement used by farmers to exterminate locust populations.…

"The thorax, the second primary division of the body of insects, plays almost as important a part as the head."

Thorax of Acrocinus Longimanus

"The thorax, the second primary division of the body of insects, plays almost as important a part as…

The Five-Spotted Hawkmoth (Manduca quinquemaculata) is a brown and gray hawk moth of the Sphingidae family. The caterpillar is often referred to as the tomato hornworm and can be a major pest in gardens. The tomato hornworm larva is a green caterpillar, with eight, v-shaped markings on its side and has a black horn on its rear just as other hornworms.

Tomato Worm

The Five-Spotted Hawkmoth (Manduca quinquemaculata) is a brown and gray hawk moth of the Sphingidae…

Ideal section through an insect. -<em>a</em>, alimentary canal; <em>h</em>, heart; <em>n</em>, nerve-cord; <em>s</em>, stigmata; <em>t</em>, tracheal tubes; <em>l</em>, legs; <em>w</em>, wings.

Transverse Thorax

Ideal section through an insect. -a, alimentary canal; h, heart; n, nerve-cord;…

"It is not dangerous to man, but its sting kills the ox, the horse, the sheep and the dog, and renders the countries of Central Africa uninhabitable for those animals."

The Tsetse-Fly (Glossina Morsitans)

"It is not dangerous to man, but its sting kills the ox, the horse, the sheep and the dog, and renders…

"It is not dangerous to man, but its sting kills the ox, the horse, the sheep and the dog, and renders the countries of Central Africa uninhabitable for those animals."

Head of Tsetse-Fly (Glossina Morsitans)

"It is not dangerous to man, but its sting kills the ox, the horse, the sheep and the dog, and renders…

"The larva makes a small tunnel in the sand, having a conical mouth, where it waits, like the spider, immovable. As soon as an insect falls into the hole, it raises its head, and squeezing its prey in the folds of its body, devours it."

Vermilea de Geeri

"The larva makes a small tunnel in the sand, having a conical mouth, where it waits, like the spider,…

Because they resemble the humblebee, they introduce their eggs into humblebee nests. When the larvae hatch, they devour the larvae of their hosts.

A Species of Volucella

Because they resemble the humblebee, they introduce their eggs into humblebee nests. When the larvae…

"In Germany and Sweden, the peasants use it as a cure for warts. They make this insect bite the warts which they often have on their hands, and the liquid which at the same time flows from the insect's mouth into the wound causes the warts to dry up and disappear."

Wart Biter (Decticus Verrucivorus)

"In Germany and Sweden, the peasants use it as a cure for warts. They make this insect bite the warts…

Head of Wasp to show regions: <em>a</em>, compound eyes; <em>b</em>, clypeus; <em>c</em>, labrum; <em>d</em>, mandibles; <em>e</em>, ocelli; <em>f</em>, place where antennae are inserted.

Head of Wasp

Head of Wasp to show regions: a, compound eyes; b, clypeus; c, labrum; d,…

"Toward the end of summer the nest may contain three thousand workers and many females, who live together in perfect harmony."

Exterior of a Wasp's Nest on a Branch of a Tree

"Toward the end of summer the nest may contain three thousand workers and many females, who live together…

"Toward the end of summer the nest may contain three thousand workers and many females, who live together in perfect harmony."

Interior of a Wasp's Nest

"Toward the end of summer the nest may contain three thousand workers and many females, who live together…

"The Card Making Wasp of Cayenne is a consummate artist. From an architectural point of view, the card making wasp is almost superior to the bee. Its honey is not fit for food."

Card Making Wasp (Chartergus Nidulans)

"The Card Making Wasp of Cayenne is a consummate artist. From an architectural point of view, the card…

"Wasps live in companies, which last only a year and are composed of males, females and workers. Their sting is larger than that of the bees, and is supplied with poison from a pouch placed at the base. The males have no sting."

Common Wasp (Vespa Vulgaris)

"Wasps live in companies, which last only a year and are composed of males, females and workers. Their…

"There are solitary wasps which make their cells in holes, which they scoop out in the ground or in stalks or certain plants."

A Species of Odynerus

"There are solitary wasps which make their cells in holes, which they scoop out in the ground or in…

"There are solitary wasps which make their cells in holes, which they scoop out in the ground or in stalks or certain plants. The larva lines its cell with a silky cocoon."

Larva of the Odynerus Wasp

"There are solitary wasps which make their cells in holes, which they scoop out in the ground or in…

"There are solitary wasps which make their cells in holes, which they scoop out in the ground or in stalks or certain plants. Its nest is made in the stock of a bramble or brier."

Nest of an Odynerus Wasp in the Stem of a Bramble

"There are solitary wasps which make their cells in holes, which they scoop out in the ground or in…

A cross-section of wood infested with insects.

Infested wood

A cross-section of wood infested with insects.