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An egg of the monarch. This common butterfly is of a brown color, with black veins and wing borders.

Monarch Butterfly

An egg of the monarch. This common butterfly is of a brown color, with black veins and wing borders.

The mesothorax of the monarch. This common butterfly is of a brown color, with black veins and wing borders.

Monarch Butterfly

The mesothorax of the monarch. This common butterfly is of a brown color, with black veins and wing…

The metathorax of the monarch. This common butterfly is of a brown color, with black veins and wing borders.

Monarch Butterfly

The metathorax of the monarch. This common butterfly is of a brown color, with black veins and wing…

The abdomen of the monarch. This common butterfly is of a brown color, with black veins and wing borders.

Monarch Butterfly

The abdomen of the monarch. This common butterfly is of a brown color, with black veins and wing borders.

Butterflies may Usually be distinguished by the vertical position of their wings when they are at rest, and by their having the antennae slender and club-shaped at the end.

Troilus Butterfly

Butterflies may Usually be distinguished by the vertical position of their wings when they are at rest,…

A larva of the Sphinx moth, displaying mimicry appearance so as to look aggressive.

Caterpillar

A larva of the Sphinx moth, displaying mimicry appearance so as to look aggressive.

A larva of a moth, displaying mimicry appearance so as to look aggressive.

Caterpillar

A larva of a moth, displaying mimicry appearance so as to look aggressive.

A larva of a moth, displaying mimicry appearance so as to look aggressive.

Caterpillar

A larva of a moth, displaying mimicry appearance so as to look aggressive.

Centipedes have flattened bodies, with one pair of legs to each segment. They are carnivorous.

Centipede

Centipedes have flattened bodies, with one pair of legs to each segment. They are carnivorous.

This Centipedes has a flattened bodies, with one pair of legs to each segment, but it has less than 100 leg pairs. They are carnivorous.

Centipede

This Centipedes has a flattened bodies, with one pair of legs to each segment, but it has less than…

This family of insects is famous for its chirping sounds.

Cicada

This family of insects is famous for its chirping sounds.

Cicadas are probably best known by the shrillsound made by the males.

Cicada

Cicadas are probably best known by the shrillsound made by the males.

We are not, as a rule, very fond of cockroaches, and do all we can to get rid of them,(Wood, 1896).

Cockroach

We are not, as a rule, very fond of cockroaches, and do all we can to get rid of them,(Wood, 1896).

We are not, as a rule, very fond of cockroaches, and do all we can to get rid of them,(Wood, 1896).

Cockroach

We are not, as a rule, very fond of cockroaches, and do all we can to get rid of them,(Wood, 1896).

We are not, as a rule, very fond of cockroaches, and do all we can to get rid of them,(Wood, 1896).

Cockroach

We are not, as a rule, very fond of cockroaches, and do all we can to get rid of them,(Wood, 1896).

The common cockroach, male.

Cockroach

The common cockroach, male.

The common cockroach, female.

Cockroach

The common cockroach, female.

Dragonflies have four thin and transparent wings.

Dragonfly

Dragonflies have four thin and transparent wings.

Adult dragonfly

Dragonfly

Adult dragonfly

Larva of dragonfly

Dragonfly

Larva of dragonfly

"The Foficulina includes the Earwig, <em>Forficula</em>, which appears to live principally upon vegetable substances. As this trie often attack the petals of flowers, they are regarded as enemies by the gardener." &mdash; Goodrich, 1859

Earwigs

"The Foficulina includes the Earwig, Forficula, which appears to live principally upon vegetable…

the flea has a curios apparatus for sucking blood, which is very beautiful as examined with a microscope (Hooker, 1882).

Flea

the flea has a curios apparatus for sucking blood, which is very beautiful as examined with a microscope…

Fleas are parasites. That is any plant or animal which feeds upon another living plant or animal without destroying it.

Flea

Fleas are parasites. That is any plant or animal which feeds upon another living plant or animal without…

Fleas are parasites. That is any plant or animal which feeds upon another living plant or animal without destroying it.

Flea

Fleas are parasites. That is any plant or animal which feeds upon another living plant or animal without…

The fly has one pair of wings and sucking mouth parts.

Fly

The fly has one pair of wings and sucking mouth parts.

The biting fly is also known as the bee killer fly.

Biting Fly

The biting fly is also known as the bee killer fly.

In the Crane Fly, only the front pair of wings is present.

Crane Fly

In the Crane Fly, only the front pair of wings is present.

The horse fly has but one pair of developed wings, the second pair being represented by a pair of balancers: their function is sensory.

Horse Fly

The horse fly has but one pair of developed wings, the second pair being represented by a pair of balancers:…

The head of the adult horse fly.

Horse Fly

The head of the adult horse fly.

The prothorax of the adult horse fly.

Horse Fly

The prothorax of the adult horse fly.

The mesothorax of the adult horse fly.

Horse Fly

The mesothorax of the adult horse fly.

The metathorax of the adult horse fly.

Horse Fly

The metathorax of the adult horse fly.

The abdomen of the adult horse fly.

Horse Fly

The abdomen of the adult horse fly.

The mouth parts of the adult horse fly.

Horse Fly

The mouth parts of the adult horse fly.

The head of the larva of the horse fly.

Horse Fly

The head of the larva of the horse fly.

The larva of the horse fly.

Horse Fly

The larva of the horse fly.

The larva of the horse fly.

Horse Fly

The larva of the horse fly.

The pupa of the horse fly.

Horse Fly

The pupa of the horse fly.

This spongy gall is found on various species of roses, and is produced by several insects as receptacles for their eggs. the larvae then feed upon the juices of the plant.

Gall

This spongy gall is found on various species of roses, and is produced by several insects as receptacles…

The male grasshopper makes noise by rubbing together hard plates on the inside of the thighs.

Grasshopper

The male grasshopper makes noise by rubbing together hard plates on the inside of the thighs.

External features of a grasshopper abdomen.

Grasshopper

External features of a grasshopper abdomen.

External features of a grasshopper metathorax.

Grasshopper

External features of a grasshopper metathorax.

External features of a grasshopper mesothorax.

Grasshopper

External features of a grasshopper mesothorax.

External features of a grasshopper prothorax.

Grasshopper

External features of a grasshopper prothorax.

External features of a grasshopper head.

Grasshopper

External features of a grasshopper head.

External features of a grasshopper , dorsal view.

Grasshopper

External features of a grasshopper , dorsal view.

Cross section of a grasshopper , a=digestive tube

Grasshopper

Cross section of a grasshopper , a=digestive tube

Air tubes and air sacs of grasshopper, lateral view

Grasshopper

Air tubes and air sacs of grasshopper, lateral view

Air tubes and air sacs of grasshopper, ventral view

Grasshopper

Air tubes and air sacs of grasshopper, ventral view

Internal anatomy of a grasshopper

Grasshopper

Internal anatomy of a grasshopper

Grasshoppers laying eggs.

Grasshopper

Grasshoppers laying eggs.

Grubs are hatchlings of butterflies.

Grub

Grubs are hatchlings of butterflies.

The insects of the Ichneumon family have long,slender bodies, long ovipositors and long antennae.

Ichneumon

The insects of the Ichneumon family have long,slender bodies, long ovipositors and long antennae.

The insects of the Ichneumon family have long,slender bodies, long ovipositors and long antennae.

Ichneumon

The insects of the Ichneumon family have long,slender bodies, long ovipositors and long antennae.

An adult ichneumon fly

Ichneumon

An adult ichneumon fly

This female parasitic wasp has a strong boring ovipositor for laying eggs in holes she drills in trees.

Ichneumon

This female parasitic wasp has a strong boring ovipositor for laying eggs in holes she drills in trees.

This female parasitic wasp has a strong boring ovipositor for laying eggs in holes she drills in trees.

Ichneumon

This female parasitic wasp has a strong boring ovipositor for laying eggs in holes she drills in trees.

The large Ichneumon fly with long flexible ovipositor.

Ichneumon

The large Ichneumon fly with long flexible ovipositor.

Katydids are in the grasshopper family. The male makes noise by rubbing together two stiff, thin membranes that appear at the base of the wings. The females chirp in response.

Katydid

Katydids are in the grasshopper family. The male makes noise by rubbing together two stiff, thin membranes…

Katydids are in the grasshopper family. The male makes noise by rubbing together two stiff, thin membranes that appear at the base of the wings. The females chirp in response.

Katydid

Katydids are in the grasshopper family. The male makes noise by rubbing together two stiff, thin membranes…