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"Frog Hoppers are ranked under the homopterous sub-order of insects. The name of frog hopper refers partly to the form of their body, partly to their leaping powers, which are great; this power arises from the length of their hind legs. The larva of these insects, which resembles the parent in most respects except in the want of wings, envelops itself in a froth resembling human spittle. All must have often observed ths on plants."—(Charles Leonard-Stuart, 1911)

Frog Hopper on Leaf

"Frog Hoppers are ranked under the homopterous sub-order of insects. The name of frog hopper refers…

"Frog Hoppers are ranked under the homopterous sub-order of insects. The name of frog hopper refers partly to the form of their body, partly to their leaping powers, which are great; this power arises from the length of their hind legs. The larva of these insects, which resembles the parent in most respects except in the want of wings, envelops itself in a froth resembling human spittle. All must have often observed ths on plants."—(Charles Leonard-Stuart, 1911)

Adult Frog Hopper

"Frog Hoppers are ranked under the homopterous sub-order of insects. The name of frog hopper refers…

"Frog Hoppers are ranked under the homopterous sub-order of insects. The name of frog hopper refers partly to the form of their body, partly to their leaping powers, which are great; this power arises from the length of their hind legs. The larva of these insects, which resembles the parent in most respects except in the want of wings, envelops itself in a froth resembling human spittle. All must have often observed ths on plants."—(Charles Leonard-Stuart, 1911)

Larval Frog Hopper

"Frog Hoppers are ranked under the homopterous sub-order of insects. The name of frog hopper refers…

"The males make prodigious bounds, sometimes throwing themselves a distance of more than two yards."

The Froghopper (Aphrophora Spumatra)

"The males make prodigious bounds, sometimes throwing themselves a distance of more than two yards."

A most singularly-formed insect; the front part of its head being much prolonged, and projecting upward like a thin curved horn.

Fulgora

A most singularly-formed insect; the front part of its head being much prolonged, and projecting upward…

"The eggs are white and conical. They adhere to the horse's hair."

Eggs of Gadfly, Estrus (Gasterophilus) Equi

"The eggs are white and conical. They adhere to the horse's hair."

Larvae of Estrus (Gasterophilus) Equi. Representation of "the state of a horse's stomach attacked by the gadfly larvae."

Gadfly Larvae in a Portion of the Stomach of the Horse

Larvae of Estrus (Gasterophilus) Equi. Representation of "the state of a horse's stomach attacked by…

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…

An illustration of a young girl holding a butterfly net.

Girl with Butterfly Net

An illustration of a young girl holding a butterfly net.

Gnats are a member of the <em>Culicidae</em> family. "They present a charming appearance when seen through a microscope."

The Gnat (Culex Pipiens)

Gnats are a member of the Culicidae family. "They present a charming appearance when seen through…

Gnats are a member of the <em>Culicidae</em> family. "They present a charming appearance when seen through a microscope."

The Gnat (Culex Pipiens)

Gnats are a member of the Culicidae family. "They present a charming appearance when seen through…

"The gnat's sting is a sort of a sword in miniature. These have their points reversed, and are serrated on the convex side of the bend."

Lancets of the Gnat

"The gnat's sting is a sort of a sword in miniature. These have their points reversed, and are serrated…

"Many have observed in stagnant water, a number of worm-like bodies. These are gnats in the larvae period."

Larva of the Gnat

"Many have observed in stagnant water, a number of worm-like bodies. These are gnats in the larvae period."

"The antennae of the male have a fine feathery appearance."

Magnified Antennae of Gnat

"The antennae of the male have a fine feathery appearance."

"The number of gnats which come into existence in the course of a year is marvelous."

Magnified Eggs of the Gnat

"The number of gnats which come into existence in the course of a year is marvelous."

"The head of the gnat with its two eyes, its antennae and trunk. Their eyes, covered with network, are so large that they cover nearly the whole head."

Magnified Head of Gnat

"The head of the gnat with its two eyes, its antennae and trunk. Their eyes, covered with network, are…

"That which is generally seen is only the case containing the instruments which are intended to pierce our skin and suck our blood."

Magnified Trunk of Gnat

"That which is generally seen is only the case containing the instruments which are intended to pierce…

In the pupa state, there is no digestive system, but it does have respiration organs.

Pupa of the Gnat

In the pupa state, there is no digestive system, but it does have respiration organs.

"In the family <em>Culicidae</em>, or Gnats, which include several pre-eminently bloodthirsty species, the proboscis is especially suited for their worm of torment. It is often half the length of the insect, slender, sightly thickened at the tip, and incloses six long, sharp bristles." &mdash; Goodrich, 1859

Gnats

"In the family Culicidae, or Gnats, which include several pre-eminently bloodthirsty species,…

Illustration of the different stages of a gnats life.

Gnats Emerging

Illustration of the different stages of a gnats life.

Gooseberry Caterpillar is the name applied to the larvæ of two different insects, both injurious to gooseberry and currant bushes. (1) the Magpie Moth (Abraxas grossulariata), appearing about midsummer, has usually a black head, yellow body, and white wings spotted with black. (2) More destructive than the above is the larva of the Gooseberry Sawfly (Nematus ribesii), which plays havoc with the leaves of bushes. The larva is bluish green, with lack head, feet, tail, and spots, with twenty feet, and a length of about 3/4 of an inch when full grown.

Gooseberry Caterpillar (Nematus ribesii) and Sawfly

Gooseberry Caterpillar is the name applied to the larvæ of two different insects, both injurious to…

The Gooseberry or Magpie moth is often mistaken for a butterfly. The moth usually appears in the middle of the summer and continues until autumn. The wings of the moth have a white background with patches of black. At the base of the forewings is a yellow patch and near the middle there is a band of yellow between two rows of black spots.

Gooseberry or Magpie Moth

The Gooseberry or Magpie moth is often mistaken for a butterfly. The moth usually appears in the middle…

"A species of bug which usually ilves upon cabbages. In autumn they may be found upon raspberries, to which they impart their disagreeable smell."

Gray Pentatoma (Raphigaster Griseus)

"A species of bug which usually ilves upon cabbages. In autumn they may be found upon raspberries, to…

The grub of the beneficial ladybird. This insect is beneficial to gardens because it eats aphides.

Grub of Ladybird

The grub of the beneficial ladybird. This insect is beneficial to gardens because it eats aphides.

"The larvae of these insects commit depredations for which gourmands will never forgive them, destroying, as they do, their mushroom."

A Species of Helomyza

"The larvae of these insects commit depredations for which gourmands will never forgive them, destroying,…

The tail of these worms will grow as the depth of water is increased to accommodate breathing.

Larvae of Helophilus

The tail of these worms will grow as the depth of water is increased to accommodate breathing.

"In England they are known as rat-tailed maggots, and their habits are aquatic."

Species of Helophilus

"In England they are known as rat-tailed maggots, and their habits are aquatic."

A hornet

Hornet

A hornet

Hornets "make their nests in trunks of old trees, perforating the sound wood to arrive at the heart, which is rotten, or hollowing for themselves a hole, which they clear out by the gallery which leads to it."

Hanging Hornet's Nest

Hornets "make their nests in trunks of old trees, perforating the sound wood to arrive at the heart,…

"During the months of July and August, the Estrus frequents pastures, and deposits its eggs on the shoulders, knees, etc., of horses."

Female Horse-Fly, Estrus (Gasterophilus) Equi

"During the months of July and August, the Estrus frequents pastures, and deposits its eggs on the shoulders,…

"During the months of July and August, the Estrus frequents pastures, and deposits its eggs on the shoulders, knees, etc., of horses."

Male Horse-Fly, Estrus (Gasterophilus) Equi

"During the months of July and August, the Estrus frequents pastures, and deposits its eggs on the shoulders,…

"Ashy color, with the face black, the sides of the head yellow, and the forehead yellow with black stripes."

House-Fly (Musca Domestica)

"Ashy color, with the face black, the sides of the head yellow, and the forehead yellow with black stripes."

A: Eggs B: Larva C: Pupa D: Imago, or perfect insect

Hydrophilus in its Four States

A: Eggs B: Larva C: Pupa D: Imago, or perfect insect

Ichneumon flies are solitary insects, and most are parasitoids&mdash;the larvae feeding on or in another insect which finally dies. As with all hymenopterans, ichneumons are closely related to ants and bees. The female finds a host and lays an egg on, near, or inside the host's body. Upon hatching, the larval ichneumon feeds either externally or internally, killing the host when they themselves are ready to pupate. The large ichneumon fly (Thakessa), with long flexable ovipositor. The various parts of ths ovipositor are spread aapart in the figure; naturally they lie together to form a single piercing organ.

Ichneumon Fly

Ichneumon flies are solitary insects, and most are parasitoids—the larvae feeding on or in another…

Ichneumon flies are solitary insects, and most are parasitoids&mdash;the larvae feeding on or in another insect which finally dies. As with all hymenopterans, ichneumons are closely related to ants and bees. The female finds a host and lays an egg on, near, or inside the host's body. Upon hatching, the larval ichneumon feeds either externally or internally, killing the host when they themselves are ready to pupate. The large ichneumon fly (Thakessa), with long flexable ovipositor, boring to deposit eggs.

Ichneumon Fly

Ichneumon flies are solitary insects, and most are parasitoids—the larvae feeding on or in another…

Ichneumon flies have slender bodies, veined wings with the veins enclosing several spaces or cells, and long vibratile antennae of numerous joints. Ichneumon flies lay their eggs on the bodies of other insects.

Ichneumon Fly

Ichneumon flies have slender bodies, veined wings with the veins enclosing several spaces or cells,…

Diagram of the external structure of an insect. 1: The head carrying the eyes and antennae. 2: First segment of the thorax with the first pair of legs. 3: The second segment of the thorax with the second pair of legs and the first pair of wings. 4: The third segment of the thorax with the third pair of legs and the second pair of wings. 5: Abdomen without legs.

Insect

Diagram of the external structure of an insect. 1: The head carrying the eyes and antennae. 2: First…

An illustration of insects acting as people and having a party.

Insect Party

An illustration of insects acting as people and having a party.

The rear end of the machine is mounted upon two wheels. A trough, with a runner-like bow, containing some adhesive matter, is suspended upon each side of the row. A vibrating arm or beam, carrying wisps or brushes, is adjustably suspended form the farm, and as the machine is pushed along the row of plants the insects are shaken into the troughs, from which they are unable to escape.

Insect Sifter

The rear end of the machine is mounted upon two wheels. A trough, with a runner-like bow, containing…

"Figure 10- Dermestes lardarius (Larder beetle) enlarged. a, larva; b, an enlarged hair; c, imago." Elliot Coues, 1884. The Larder beetle is small, black to brown in color with a light yellow spotted band around its abdomen. The legs and undersides are covered with yellow hairs.

Larder Beetle Larvae and Imago

"Figure 10- Dermestes lardarius (Larder beetle) enlarged. a, larva; b, an enlarged hair; c, imago."…

This insect has a natural camouflage and appears just a leaf.

Leaf Insect (Phyllium Scythe), Female

This insect has a natural camouflage and appears just a leaf.

"The joint is used for gathering the pollen; it folds back on the leg and forms with it a sort of small pair of pincers."

Leg of a Bee

"The joint is used for gathering the pollen; it folds back on the leg and forms with it a sort of small…

A close-up of the hind leg of a Heterocerus.

Hind Leg of a Heterocerus

A close-up of the hind leg of a Heterocerus.

Jumping insects have very developed hind legs.

Posterior Leg of a Jumping Insect

Jumping insects have very developed hind legs.

"The front leg of a genera of beetles."

Front Leg of a Zophosis

"The front leg of a genera of beetles."

Representation of "the two membranous legs of a large caterpillar, of which the hooks of the feet are fastened into the branch of a shrub."

Membranous Legs of a Large Caterpillar Embracing a Twig

Representation of "the two membranous legs of a large caterpillar, of which the hooks of the feet are…

Membranous and fleshy legs.

Membranous Legs of Silkworm (Bombyx Mori)

Membranous and fleshy legs.

Locust is the swarming phase of short-horned grasshoppers of the family Acrididae. These are species that can breed rapidly under suitable conditions and subsequently become gregarious and migratory. They form bands as nymphs and swarms as adults&mdash;both of which can travel great distances, rapidly stripping fields and greatly damaging crops.

Locust

Locust is the swarming phase of short-horned grasshoppers of the family Acrididae. These are species…

"They will inflate themselves with air, and undertake journeys during which they travel more than eighteen miles a day, laying waste all the vegetation on their road."

Locust (Acridium Edipoda Migratorium)

"They will inflate themselves with air, and undertake journeys during which they travel more than eighteen…

Enlarged end of the female, showing oviposition: the oviduct, the egg guide, and the egg issuing from horny valves.

Locust Anatomy

Enlarged end of the female, showing oviposition: the oviduct, the egg guide, and the egg issuing from…

The egg of the Rocky mountain locust.

Locust egg

The egg of the Rocky mountain locust.

"The Head-louse is an insect with a flat body, slightly transparent, and of a grayish color."

Louse (Pediculus Capitis)

"The Head-louse is an insect with a flat body, slightly transparent, and of a grayish color."

"A specimen of the golden fly; it is rather more than one third of an inch in length."

Lucilia Hominivorax

"A specimen of the golden fly; it is rather more than one third of an inch in length."

Mantodea or mantises is an order of insects which contains approximately 2,200 species in 9 families worldwide in temperate and tropical habitats.

Praying Mantis

Mantodea or mantises is an order of insects which contains approximately 2,200 species in 9 families…

"In order that the may pierce the skin, the fly is provided with a very small lancet, which has a very fine point, and is of light color."

Lancet of the Meat-Fly

"In order that the may pierce the skin, the fly is provided with a very small lancet, which has a very…

"The trunk appears to be composed of two parts, joined, and forming a more or less obtuse angle."

Trunk of the Meat-Fly

"The trunk appears to be composed of two parts, joined, and forming a more or less obtuse angle."

A butterfly is an insect of the order Lepidoptera. Like all Lepidoptera, butterflies are notable for their unusual life cycle with a larval caterpillar stage, an inactive pupal stage, and a spectacular metamorphosis into a familiar and colourful winged adult form. A monarch butterfly is is a milkweed butterfly, perhaps the best known of all North American butterflies.

Metamorphosis of a Monarch Butterfly

A butterfly is an insect of the order Lepidoptera. Like all Lepidoptera, butterflies are notable for…

A butterfly is an insect of the order Lepidoptera. Like all Lepidoptera, butterflies are notable for their unusual life cycle with a larval caterpillar stage, an inactive pupal stage, and a spectacular metamorphosis into a familiar and colourful winged adult form. A monarch butterfly is is a milkweed butterfly, perhaps the best known of all North American butterflies. The body of the crawling worm-like larva is greenish yellow in color, with broad bands of shining black.

Metamorphosis of a Monarch Butterfly

A butterfly is an insect of the order Lepidoptera. Like all Lepidoptera, butterflies are notable for…

A butterfly is an insect of the order Lepidoptera. Like all Lepidoptera, butterflies are notable for their unusual life cycle with a larval caterpillar stage, an inactive pupal stage, and a spectacular metamorphosis into a familiar and colourful winged adult form. This the egg of a Monarch butterfly.

Metamorphosis of a Monarch Butterfly

A butterfly is an insect of the order Lepidoptera. Like all Lepidoptera, butterflies are notable for…

A butterfly is an insect of the order Lepidoptera. Like all Lepidoptera, butterflies are notable for their unusual life cycle with a larval caterpillar stage, an inactive pupal stage, and a spectacular metamorphosis into a familiar and colourful winged adult form. This the pupa of a Monarch butterfly.

Metamorphosis of a Monarch Butterfly

A butterfly is an insect of the order Lepidoptera. Like all Lepidoptera, butterflies are notable for…