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Ladybugs, or lady-birds look like little colored and spotted turtles. The larvae of these beetles prey upon plant pests.

Ladybug

Ladybugs, or lady-birds look like little colored and spotted turtles. The larvae of these beetles prey…

Walking Sticks and Leaf Insects lead a sluggish life among the branches of shrubs, living on the young shoots. Their color and shape being so much like those of things around them, enable them commonly to escape observation.

Leaf Insect

Walking Sticks and Leaf Insects lead a sluggish life among the branches of shrubs, living on the young…

Locusts are in the grasshopper family, although they have shorter legs and antennae. They can be extensively destructive to crops.

Locust

Locusts are in the grasshopper family, although they have shorter legs and antennae. They can be extensively…

The migratory locust travels in enormous numbers and can devour fresh fields to devastation.

Locust

The migratory locust travels in enormous numbers and can devour fresh fields to devastation.

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

Head Louse

Head lice are parasites. That is any plant or animal which feeds upon another living plant or animal…

Fish louse, adult

Louse

Fish louse, adult

Fish louse, larva

Louse

Fish louse, larva

Sucking louse of human body

Louse

Sucking louse of human body

"The <em>Galeruca rustica</em> is a common European species, called <em>Garden louse</em>.

Garden Louse

"The Galeruca rustica is a common European species, called Garden louse.

The mandibles of the common garden spider.

Mandible

The mandibles of the common garden spider.

Adult Mayfly

Mayfly

Adult Mayfly

Head of Mayfly

Mayfly

Head of Mayfly

Prothorax of Mayfly

Mayfly

Prothorax of Mayfly

Mesothorax of Mayfly

Mayfly

Mesothorax of Mayfly

Metathorax of Mayfly

Mayfly

Metathorax of Mayfly

Abdomen of Mayfly

Mayfly

Abdomen of Mayfly

Larva of Mayfly

Mayfly

Larva of Mayfly

gill of larva of Mayfly

Mayfly

gill of larva of Mayfly

Most mites live as external parasites sucking the blood of their host..

Mite

Most mites live as external parasites sucking the blood of their host..

When the common mosquito is first hatched in the water it is called a wriggler. After developing to its full size, the back opens and the winged insect emerges.

Mosquito

When the common mosquito is first hatched in the water it is called a wriggler. After developing to…

Mosquitos are parasitic insects that suck blood from humans and other mammals. They are known to spread malaria and other diseases.

Mosquito

Mosquitos are parasitic insects that suck blood from humans and other mammals. They are known to spread…

Metamorphosis of the mosquito, larva

Mosquito

Metamorphosis of the mosquito, larva

Metamorphosis of the mosquito, pupa

Mosquito

Metamorphosis of the mosquito, pupa

The pupa of a developing mosquito.

Mosquito

The pupa of a developing mosquito.

The larva of a developing mosquito.

Mosquito

The larva of a developing mosquito.

When the common mosquito is first hatched in the water it is called a wriggler.

Mosquito

When the common mosquito is first hatched in the water it is called a wriggler.

Moths have generally shorter , hairier bodies than butterflies.

Moth

Moths have generally shorter , hairier bodies than butterflies.

Metamorphosis of a moth.

Moth

Metamorphosis of a moth.

The males of the common cankerworm moth have four wings.

Cankerworm Moth

The males of the common cankerworm moth have four wings.

The females of the common cankerworm moth are wingless.

Cankerworm Moth

The females of the common cankerworm moth are wingless.

The hawk moth is well known by its habit of poising like a humming bird over the flower from which it is extracting the nectar by means of its long sucking tube.

Hawk Moth

The hawk moth is well known by its habit of poising like a humming bird over the flower from which it…

The hawk moth is well known by its habit of poising like a humming bird over the flower from which it is extracting the nectar by means of its long sucking tube. This is a larva.

Hawk Moth

The hawk moth is well known by its habit of poising like a humming bird over the flower from which it…

The hawk moth is well known by its habit of poising like a humming bird over the flower from which it is extracting the nectar by means of its long sucking tube. This is a pupa.

Hawk Moth

The hawk moth is well known by its habit of poising like a humming bird over the flower from which it…

A caterpillar with cocoons of the pupae of ichneumon fly parasites.

Pupa

A caterpillar with cocoons of the pupae of ichneumon fly parasites.

The red scale of California is a parasitic insect that sucks sap from the plant it lives on.

Scale

The red scale of California is a parasitic insect that sucks sap from the plant it lives on.

An adult female scale

Scale

An adult female scale

The adult female scale forms a wax covering under which she remains.

Scale

The adult female scale forms a wax covering under which she remains.

The larvae of a scale

Scale

The larvae of a scale

An adult male scale

Scale

An adult male scale

The scale bugs, or bark lice, are very injurious to trees: some of them are among the worst pests of the fruit grower. These scale are on Osage Orange.

Scale

The scale bugs, or bark lice, are very injurious to trees: some of them are among the worst pests of…

The male cottony cushion scale insect is winged.

Cottony Scale

The male cottony cushion scale insect is winged.

Scorpions are found in warm climates, reaching their greatest size in tropical America and Africa.

Scorpion

Scorpions are found in warm climates, reaching their greatest size in tropical America and Africa.

Silkworms are the larvae of moths that spin silken cocoons.

Silkworm

Silkworms are the larvae of moths that spin silken cocoons.

Silkworms are the larvae of moths that spin silken cocoons.

Silkworm

Silkworms are the larvae of moths that spin silken cocoons.

Spider showing unusual shapes and patterns for purposes of camoflauge.

Spider

Spider showing unusual shapes and patterns for purposes of camoflauge.

Spider showing unusual shapes and patterns for purposes of camoflauge.

Spider

Spider showing unusual shapes and patterns for purposes of camoflauge.

Spider, with cocoon attached to spinnerets.

Spider

Spider, with cocoon attached to spinnerets.

Spiders come in many shapes and sizes. Some are poisonous, while others are not.

Spider

Spiders come in many shapes and sizes. Some are poisonous, while others are not.

The body of a spider consists of two parts, connected by a constricted waist, the unsegmented cephalpthorax and a large, soft, unsegmented abdomen.

Jumping Spider

The body of a spider consists of two parts, connected by a constricted waist, the unsegmented cephalpthorax…

the spinnerets of the common garden spider that are used to spin webs.

Spinnerets

the spinnerets of the common garden spider that are used to spin webs.

Adult stinkbugs secrete a foul smelling odor from two glands on the thorax.

Stink Bug

Adult stinkbugs secrete a foul smelling odor from two glands on the thorax.

Adult stinkbug antenna.

Stink Bug

Adult stinkbug antenna.

Adult stinkbug head.

Stink Bug

Adult stinkbug head.

Adult stinkbug sucking tube.

Stink Bug

Adult stinkbug sucking tube.

Adult stinkbug prothorax

Stink Bug

Adult stinkbug prothorax

Adult stinkbug mesothorax

Stink Bug

Adult stinkbug mesothorax

Adult stinkbug metathorax

Stink Bug

Adult stinkbug metathorax

Adult stinkbug maxilla and mandible

Stink Bug

Adult stinkbug maxilla and mandible

Adult stinkbug abdomen

Stink Bug

Adult stinkbug abdomen

Adult stinkbug head, oc=occular, ey=eye, at=antenna, la=labium

Stink Bug

Adult stinkbug head, oc=occular, ey=eye, at=antenna, la=labium