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The Common Fruit Fly (Drosophila melanogaster) is an insect in the Drosophilidae family. The species was formerly known by the synonym Drosophila ampelophila.

Common Fruit Fly

The Common Fruit Fly (Drosophila melanogaster) is an insect in the Drosophilidae family. The species…

Tabanus americanus is a species of biting horsefly in the Tabanidae family of horseflies. It was also known as the synonym Tabanus ruficornis.

Dorsal View of Horsefly

Tabanus americanus is a species of biting horsefly in the Tabanidae family of horseflies. It was also…

"Under Surface of Head of Tumble-bug (Copris carolina), about four times natural size. 1, galea; 2, palpifer; 3, lacinia; 4, subgalea; 5, maxillary palp; 6, stipes." -Whitney, 1911

Ventral View of Dung Beetle

"Under Surface of Head of Tumble-bug (Copris carolina), about four times natural size. 1, galea; 2,…

Galeruca notata is a beetle species in the Chrysomelidae family of leaf beetles.

Dorsal View of Leaf Beetle

Galeruca notata is a beetle species in the Chrysomelidae family of leaf beetles.

Galgulus oculatus is a true bug species in the Gelastocoridae family of toad bugs.

Dorsal View of Toad Bug

Galgulus oculatus is a true bug species in the Gelastocoridae family of toad bugs.

"Gall, or Oak-apple, produced by Cynips quercus-inanis, showing the internal cobwebby structure. Gall: a vegetable excrescence produced by the deposit of the egg of an insect in the bark or leaves of a plant, ordinarily to to the action of some virus deposited by the female along with the egg, but often to the irritation of the larva." -Whitney, 1911

Oak Apple Gall

"Gall, or Oak-apple, produced by Cynips quercus-inanis, showing the internal cobwebby structure. Gall:…

"Gall-gnat (female), a species of Cecidomyia natural size." -Whitney, 1911

Gall Gnat

"Gall-gnat (female), a species of Cecidomyia natural size." -Whitney, 1911

"Grape Gall-louse (Phylloxera vastatrix), the small figures showing natural sizes. Roots of vine, showing swellings." -Whitney, 1911

Grape Gall Louse Damage

"Grape Gall-louse (Phylloxera vastatrix), the small figures showing natural sizes. Roots of vine, showing…

"Grape Gall-louse (Phylloxera vastatrix), the small figures showing natural sizes. Larva as it appears when hibernating." -Whitney, 1911

Grape Gall Louse Larva

"Grape Gall-louse (Phylloxera vastatrix), the small figures showing natural sizes. Larva as it appears…

"Grape Gall-louse (Phylloxera vastatrix), the small figures showing natural sizes. Form of mature louse." -Whitney, 1911

Grape Gall Louse

"Grape Gall-louse (Phylloxera vastatrix), the small figures showing natural sizes. Form of mature louse."…

"Grape Gall-louse (Phylloxera vastatrix), the small figures showing natural sizes. Form of mature louse." -Whitney, 1911

Grape Gall Louse

"Grape Gall-louse (Phylloxera vastatrix), the small figures showing natural sizes. Form of mature louse."…

"Grape Gall-louse (Phylloxera vastatrix), the small figures showing natural sizes. Form of mature louse." -Whitney, 1911

Grape Gall Louse

"Grape Gall-louse (Phylloxera vastatrix), the small figures showing natural sizes. Form of mature louse."…

Gelechia gallae-solidaginis is a species of gall moth, an insect in the Gelechiidae family of Gelechiid moths.

Dorsal View of Gall Moth

Gelechia gallae-solidaginis is a species of gall moth, an insect in the Gelechiidae family of Gelechiid…

"The plumage is brownish, with white margins to the feathers and a purple tinge on the rufous-mottled head, neck, and breast; the back is greener, the tail more lilac, the abdomen white, the bare orbits blue and red. With its long stout legs this species covers the ground very quickly, running with outstretched neck, elevated crest, slightly expanded wings, and jerking tail, or springing into trees and taking brief flights." A. H. Evans, 1900

Two Radiated Ground Cuckoo, One with an Insect in its Mouth, the Other in a Tree Branch in a wooded Area

"The plumage is brownish, with white margins to the feathers and a purple tinge on the rufous-mottled…

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

Insect Party

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

An illustration of small fairies surrounding a spider.

Fairies

An illustration of small fairies surrounding a spider.

An illustration of a beetle on a leaf and a butterfly.

Beetle & Butterfly

An illustration of a beetle on a leaf and a butterfly.

An illustration of a bee.

Bee

An illustration of a bee.

Nast shoos away the Herald insect while a caricature of the "Caesar Ghost," a caricature of a caricature, appears on the blackboard near at hand.

Nast Shoos Herald Insect

Nast shoos away the Herald insect while a caricature of the "Caesar Ghost," a caricature of a caricature,…

Gregarina, a protozoan, various species which live in the alimentary canal of crayfishes, centipeds, and certain insects. is is a parasite living at the expense of the host in whose whose body it lives in. This is a Gregarinid (Actinocephalus oligacanthus) from the intestine of an insect.

Protozoan

Gregarina, a protozoan, various species which live in the alimentary canal of crayfishes, centipeds,…

Beetles are the group of insects with the largest number of known species. The general anatomy of beetles is quite uniform, although specific organs and appendages may vary greatly in appearance and function between the many families in the order. Like all insects, beetles' bodies are divided into three sections: the head, the thorax, and the abdomen. We see here the long-horned borer beetle showing the larva, pupa, and adult insect.

Beetle

Beetles are the group of insects with the largest number of known species. The general anatomy of beetles…

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…

The scale insects are small insects of the order Hemiptera, generally classified as the superfamily Coccoidea. There are about 8,000 species of scale insects. Most scale insects are parasites of plants, feeding on sap drawn directly from the plant's vascular system. The female is wingless and has a large waxen egg-sac (e.s.) attached to her body.

Scale Insects

The scale insects are small insects of the order Hemiptera, generally classified as the superfamily…

The scale insects are small insects of the order Hemiptera, generally classified as the superfamily Coccoidea. There are about 8,000 species of scale insects. Most scale insects are parasites of plants, feeding on sap drawn directly from the plant's vascular system. Male scale insects are unusual in possessing only one pair of wings, thus making them resemble true flies (Diptera), though they lack the halteres (rudimentary hind wings) seen in flies, and have tail filaments, which do not occur in flies.

Scale Insects

The scale insects are small insects of the order Hemiptera, generally classified as the superfamily…

Ichneumon flies are solitary insects, and most are parasitoids—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—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…

An insect known as the pigeon horntail (Tremex columba) deposits its eggs, by means of a strong, piercing ovipositor, half an inch deep in the trunk wood of growing trees. Female uses ovipositor to bore through bark into wood, depositing 1 slender egg in each hole. Eggs are covered with fungal spores from a special pocket in female's abdomen. After depositing the last egg, the female often dies without removing its ovipositor from the wood. The dead female becomes food for some insectivorous animal.

Pigeon Horntail

An insect known as the pigeon horntail (Tremex columba) deposits its eggs, by means of a strong, piercing…

The scale insects are small insects of the order Hemiptera, generally classified as the superfamily Coccoidea. There are about 8,000 species of scale insects. Most scale insects are parasites of plants, feeding on sap drawn directly from the plant's vascular system. This is a bit of leaf with scales.

Scale Insects

The scale insects are small insects of the order Hemiptera, generally classified as the superfamily…

The scale insects are small insects of the order Hemiptera, generally classified as the superfamily Coccoidea. There are about 8,000 species of scale insects. Most scale insects are parasites of plants, feeding on sap drawn directly from the plant's vascular system. This is an adult female scale.

Scale Insects

The scale insects are small insects of the order Hemiptera, generally classified as the superfamily…

The scale insects are small insects of the order Hemiptera, generally classified as the superfamily Coccoidea. There are about 8,000 species of scale insects. Most scale insects are parasites of plants, feeding on sap drawn directly from the plant's vascular system. This is the wax scale under which the female lives.

Scale Insects

The scale insects are small insects of the order Hemiptera, generally classified as the superfamily…

The scale insects are small insects of the order Hemiptera, generally classified as the superfamily Coccoidea. There are about 8,000 species of scale insects. Most scale insects are parasites of plants, feeding on sap drawn directly from the plant's vascular system. This is a scale larva.

Scale Insects

The scale insects are small insects of the order Hemiptera, generally classified as the superfamily…

The scale insects are small insects of the order Hemiptera, generally classified as the superfamily Coccoidea. There are about 8,000 species of scale insects. Most scale insects are parasites of plants, feeding on sap drawn directly from the plant's vascular system. This is an adult male scale.

Scale Insects

The scale insects are small insects of the order Hemiptera, generally classified as the superfamily…

"Geopinus incrassatus. GEOPINUS. A genus of caraboid beetles, of the subfamily Harpalinae, having the left mandible longer than the other and overlapping it." -Whitney, 1911

Caraboid Beetle

"Geopinus incrassatus. GEOPINUS. A genus of caraboid beetles, of the subfamily Harpalinae, having the…

"Drone-beetle (Geotrypes splendidus). GEOTRYPES. A Fabrician genus of beetles typical of the family Geotrypidae." -Whitney, 1911

Drone Beetle

"Drone-beetle (Geotrypes splendidus). GEOTRYPES. A Fabrician genus of beetles typical of the family…

"A small two-winged fly, Culex pipiens, of the family Culicidae, suborder Nemocera, and order Diptera, called in America mosquito." -Whitney, 1911

Mosquito

"A small two-winged fly, Culex pipiens, of the family Culicidae, suborder Nemocera, and order Diptera,…

"Gonatopus contortulus. A genus of ichneumon-flies of the family Proctotrupidae and subfamily Dryininae, having raptorial fore tarsi and no wings." -Whitney, 1911

Ichneumon Fly

"Gonatopus contortulus. A genus of ichneumon-flies of the family Proctotrupidae and subfamily Dryininae,…

"Gracilaria salicifoliella. GRACILARIA. In entomology, the typical genus of Gracilariidae, containing very small but beautiful tineid moths, characterized by the form of the fore wings and the smoothly clothed palpi." -Whitney, 1911

Leaf Blotch Miner Moth

"Gracilaria salicifoliella. GRACILARIA. In entomology, the typical genus of Gracilariidae, containing…

The European Grapevine Moth (Lobesia botrana) is an insect in the Tortricidae family of tortrix moths.

European Grapevine Moth

The European Grapevine Moth (Lobesia botrana) is an insect in the Tortricidae family of tortrix moths.

"Plum-moth (Grapholitha prunivora). GRAPHOLITHA. A genus of small and peculiarly marked tortricid moths, some of which inhabit galls." -Whitney, 1911

Plum Moth

"Plum-moth (Grapholitha prunivora). GRAPHOLITHA. A genus of small and peculiarly marked tortricid moths,…

A female Red-Legged Grasshopper. Melanoplus femurrubrum is an insect in the Acrididae family of grasshoppers.

Red-Legged Grasshopper

A female Red-Legged Grasshopper. Melanoplus femurrubrum is an insect in the Acrididae family of grasshoppers.

The Fiery Ground Beetle (Calosoma calidium) is an insect in the Carabidae family of carabids.

Fiery Ground Beetle

The Fiery Ground Beetle (Calosoma calidium) is an insect in the Carabidae family of carabids.

The Field Cricket (Gryllus pennsylvanicus) is an insect in the Gryllidae family of crickets. It was also known as the synonym Gryllus abbreviatus.

Field Cricket

The Field Cricket (Gryllus pennsylvanicus) is an insect in the Gryllidae family of crickets. It was…

The Whirligig (Dineutes vittatus) is an insect in the Gyrinidae family of water beetles.

Whirligig

The Whirligig (Dineutes vittatus) is an insect in the Gyrinidae family of water beetles.

"Bee, the common name given to a large family of hymenopterous or membranous-winged insects, of which the most important is the common hive or honey bee." -Vaughan, 1906

Bee Pollinating a Flower

"Bee, the common name given to a large family of hymenopterous or membranous-winged insects, of which…

Beetles (Coleoptera) in the family Meloidae are commonly known as blister beetles, after their defensive secretion of a blistering agent, cantharidin. There are approximately 2,500 known species worldwide. Many are conspicuous and some aposematically colored, announcing their toxicity to would-be predators.

Blister Beetle

Beetles (Coleoptera) in the family Meloidae are commonly known as blister beetles, after their defensive…

An illustration of a sugar-maple moth. A moth is an insect closely related to the butterfly, both being of the order Lepidoptera. The differences between butterflies and moths are more than just taxonomy.

Sugar-Maple Moth

An illustration of a sugar-maple moth. A moth is an insect closely related to the butterfly, both being…

An illustration of a maple borer: a, larva; b, cocoons; c, moth; d, skin of chrysalis.

Maple Borer

An illustration of a maple borer: a, larva; b, cocoons; c, moth; d, skin of chrysalis.

"Ox Botfly. a.-- larva, full grown, natural size; b,-- pupa; c.-- perfect insect. Botfly, Gadfly, and Warble-fly, names common to many insects of the family OEstridae, the genus OEstrus of Linnaeus." -Vaughan, 1906

Ox Botfly

"Ox Botfly. a.-- larva, full grown, natural size; b,-- pupa; c.-- perfect insect. Botfly, Gadfly, and…

Mealworms are the larva form of the mealworm beetle, Tenebrio molitor, a species of darkling beetle. Like all holometabolic insects, they go through four life-stages: egg, larva, pupa, and adult. Larvae typically measure about 2.5 cm or more, whereas adults are generally between 1.25 and 1.8 cm in length.

Mealworm Beetle

Mealworms are the larva form of the mealworm beetle, Tenebrio molitor, a species of darkling beetle.…

Mealworms are the larva form of the mealworm beetle, Tenebrio molitor, a species of darkling beetle. Like all holometabolic insects, they go through four life-stages: egg, larva, pupa, and adult. Larvae typically measure about 2.5 cm or more, whereas adults are generally between 1.25 and 1.8 cm in length.

Mealworm Larva

Mealworms are the larva form of the mealworm beetle, Tenebrio molitor, a species of darkling beetle.…

Flies in the family Syrphidae are commonly known as hoverflies, flower flies, or syrphid flies.As their common names suggest, they are often seen hovering or nectaring at flowers; the adults of many species feed mainly on nectar and pollen, while the larvae (maggots) eat a wide range of foods. In some species, the larvae are saprotrophs, eating decaying plant and animal matter in the soil or in ponds and streams. In other species, the larvae are insectivores and prey on aphids, thrips, and other plant-sucking insects.

Hoverfly

Flies in the family Syrphidae are commonly known as hoverflies, flower flies, or syrphid flies.As their…

A sequenced illustration of the cabbage butterfly undergoing metamorphosis. The butterfly starts out as a caterpillar (bottom), then forms pupa to develop wings to become a butterfly.

Three Stages of Cabbage Buterfly

A sequenced illustration of the cabbage butterfly undergoing metamorphosis. The butterfly starts out…

A window screen is a metal wire fiberglass; synthetic fiber mesh stretched in a frame of wood or metal which is designed to cover the opening of an open window.

Window Screen Construction

A window screen is a metal wire fiberglass; synthetic fiber mesh stretched in a frame of wood or metal…

Also known as megilla maculata. A-Larva; B-Empty skin; C-Beetle with enlarged antenna above.

Spotted Ladybird

Also known as megilla maculata. A-Larva; B-Empty skin; C-Beetle with enlarged antenna above.

Also known as Stiretrus anchorago. This bug is predatory of the larvae of the Mexican bean beetle and has been taken on soybeans, peanuts, alfalfa, and corn.

Stink Bug

Also known as Stiretrus anchorago. This bug is predatory of the larvae of the Mexican bean beetle and…

"The mature beetle in life rivals asparagi in beauty, but may be distinguished by its much broader elytra and its color. The ground color is orange red; each elytron is marked with six black dots, and the knees and a portion of the under surface of the thorax are also marked with black. The beetle, as it occurs on the plant when in fruit, very closely resembles at a little distance the ripening asparagus berry."—Government Printing Office, 1897

Crioceris 12-Punctata

"The mature beetle in life rivals asparagi in beauty, but may be distinguished by its much broader elytra…

The Plusia is a moth that belongs to the Noctuidae family.

Plusia Gamma

The Plusia is a moth that belongs to the Noctuidae family.