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The Grapevine Flea Beetle (Altica chalybea). "a, leaf infested with larvae; b, larva; c, cocoon; d, beetle." -Whitney, 1911

Grapevine Flea Beetle

The Grapevine Flea Beetle (Altica chalybea). "a, leaf infested with larvae; b, larva; c, cocoon; d,…

Flour Beetle.

Flour Beetle

Flour Beetle.

Cetona Baxil.

Flower Chafer Beetle

Cetona Baxil.

"Smallish insects, generally of a black color, with the elytra rather shorter than the body, which is usually of a square form." — Goodrich, 1859

Four-Spotted Beetle

"Smallish insects, generally of a black color, with the elytra rather shorter than the body, which is…

"One of the largest European beetles, the Brown Hydrophile, <em>Hydrous piceus</em>, which is common in ponds in some localities, belongs to [the philhydrida]." &mdash; Goodrich, 1859

Giant Silver Beetle

"One of the largest European beetles, the Brown Hydrophile, Hydrous piceus, which is common…

The African goliath-beetles and the american elephant-beetles are the largest of all insects.

Goliath Beetle

The African goliath-beetles and the american elephant-beetles are the largest of all insects.

The Saw-Toothed Grain Beetle (Oryzaephilus surinamensis) is a beetle of the Silvanidae family and is named after the saw teeth on the sides of its prothorax.

Saw-Toothed Grain Beetle

The Saw-Toothed Grain Beetle (Oryzaephilus surinamensis) is a beetle of the Silvanidae family and is…

Dytiscus Harminieri, a genus of predatory, diving beetles that usually live in wetlands and ponds.

Great Diving Beetle

Dytiscus Harminieri, a genus of predatory, diving beetles that usually live in wetlands and ponds.

Dytiscus Harminieri, a genus of predatory, diving beetles that usually live in wetlands and ponds.

Great Diving Beetle

Dytiscus Harminieri, a genus of predatory, diving beetles that usually live in wetlands and ponds.

The pupa of the Dytiscus genus.

Great Diving Beetle

The pupa of the Dytiscus genus.

"A, Dytiscus Marginalis, or great Water-beetle; B, larva." &mdash; Chambers' Encyclopedia, 1875

Great Diving Beetle

"A, Dytiscus Marginalis, or great Water-beetle; B, larva." — Chambers' Encyclopedia, 1875

"The <em>Dyticus marginalis</em>, a European species very common in ponds, attains a length of more than an inch." &mdash; Goodrich, 1859

Great Diving Beetle Adult and Larvae

"The Dyticus marginalis, a European species very common in ponds, attains a length of more…

"The <em>Dyticus marginalis</em>, a European species very common in ponds, attains a length of more than an inch." &mdash; Goodrich, 1859

Great Diving Beetle Female

"The Dyticus marginalis, a European species very common in ponds, attains a length of more…

"They are all of medium size, more or less oblong-oval in form, and mostly bronze-colored, rarely brown or black with a greenish tinge."-Whitney, 1902

Ground Beetle

"They are all of medium size, more or less oblong-oval in form, and mostly bronze-colored, rarely brown…

One of the largest group of beetles, mostly having shiny, black bodies.

Ground Beetle

One of the largest group of beetles, mostly having shiny, black bodies.

One of the largest group of beetles, mostly having shiny, black bodies.

Ground Beetle

One of the largest group of beetles, mostly having shiny, black bodies.

The Hercules beetle (Dynastes hercules) is the most famous of the rhinoceros beetles. Native to the rain forests of Central and South America, they also can be found in coastal regions of North Carolina, their title is well deserved, with some (exceptionally rare) males reaching 6.75 inches (170 mm) in length. It is the largest of the 6 species in the Dynastes genus, and one of the largest beetles known.

Hercules Beetle

The Hercules beetle (Dynastes hercules) is the most famous of the rhinoceros beetles. Native to the…

"The hercules beetle is a native of Brazil, sometimes attaining a length of five inches." — Goodrich, 1859

Hercules Beetle

"The hercules beetle is a native of Brazil, sometimes attaining a length of five inches." — Goodrich,…

Hister Arcuatus, or clown beetle. Small, oval, shining, very hard, black bronzed or greenish beetles, with the wing-covers cut off squarely behind, leaving the last segments of the abdomen exposed.

Hister Beetle

Hister Arcuatus, or clown beetle. Small, oval, shining, very hard, black bronzed or greenish beetles,…

Hister Bimaculatus, or clown beetle. Small, oval, shining, very hard, black bronzed or greenish beetles, with the wing-covers cut off squarely behind, leaving the last segments of the abdomen exposed.

Hister Beetle

Hister Bimaculatus, or clown beetle. Small, oval, shining, very hard, black bronzed or greenish beetles,…

"Received its specific name on account of the fondness exhibited by its curious larva for bacon." &mdash; Goodrich, 1859

Lard Beetles

"Received its specific name on account of the fondness exhibited by its curious larva for bacon." —…

"Under surface of large beetle, with deeply concave and comparatively small wings, shows that the nervures of the wings of the beetle are arranged along the anterior margins and throughout the substance of the wings generally, very much as the bones of the arm, forearm, and hand, are in the wings of the bat, to which they bear a very marked resemblance, both in their shape and mode of action."&mdash;Pettigrew, 1874

Large Beetle

"Under surface of large beetle, with deeply concave and comparatively small wings, shows that the nervures…

"The [potato beetle larva] is pale yellow, or, rather, dusky-yellow, or freckled with minute black dots on the back; and there are two rows of larger black dots along each side; the legs are black."&mdash;Nicholson, 1884

Larva of Potato Beetle

"The [potato beetle larva] is pale yellow, or, rather, dusky-yellow, or freckled with minute black dots…

Beetles form a large group of insects that number over 300,000 species. They all have hard wings which meet in the center of the back forming a line.

Lightning Spring Beetles

Beetles form a large group of insects that number over 300,000 species. They all have hard wings which…

Lophonocerus Barbicornus.

Longhorn Beetle

Lophonocerus Barbicornus.

The longhorn beetles (Cerambycidae; also known as long-horned beetles or, more archaically, llongicorns) are a cosmopolitan family of beetles, typically characterized by extremely long antennae, which are often as long as or longer than the beetle's body. The family is large, with over 20,000 species described, slightly more than half from the Eastern Hemisphere. Several are serious pests, with the larvae boring into wood, where they can cause extensive damage to either living trees or untreated lumber.

Longhorn Beetle

The longhorn beetles (Cerambycidae; also known as long-horned beetles or, more archaically, llongicorns)…

Cassida Longicornis, common name Longhorned Tortoise Beetle.

Longhorned Tortoise Beetle

Cassida Longicornis, common name Longhorned Tortoise Beetle.

"a, first or trungulin larva ( line shows natural size)." - Century, 1889

Male Blister Beetle

"a, first or trungulin larva ( line shows natural size)." - Century, 1889

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.…

"The Sternoxi include the Metallic Beetles, Buprestidae the most gorgeous of the coleopterous families. Some have a general coppery hue, whilst some present the beautiful contrast of fine yellow spots and marks upon a highly polished blue or green ground, and others exhibit the appearance of burnished gold or of rubies, inlaid on emerald of emony. The elytra of the Metallic Beetles are those usually employed in the embroidery of ladies' dresses and for other purposes of personal ornament. They are most plentiful in the thick forests of tropical countries, and seem partial to stage in the heart of timber." &mdash; Encyclopedia Britanica, 1893

Metallic Beetle

"The Sternoxi include the Metallic Beetles, Buprestidae the most gorgeous of the coleopterous families.…

"The Sternoxi include the Metallic Beetles, Buprestidae the most gorgeous of the coleopterous families. Some have a general coppery hue, whilst some present the beautiful contrast of fine yellow spots and marks upon a highly polished blue or green ground, and others exhibit the appearance of burnished gold or of rubies, inlaid on emerald of emony. The elytra of the Metallic Beetles are those usually employed in the embroidery of ladies' dresses and for other purposes of personal ornament. They are most plentiful in the thick forests of tropical countries, and seem partial to stage in the heart of timber." &mdash; Encyclopedia Britanica, 1893

Metallic Beetle Larva

"The Sternoxi include the Metallic Beetles, Buprestidae the most gorgeous of the coleopterous families.…

"The Mimic Beetles seldom exceed one-third of an inch in length, and are of very solid consistence, their elytra being so hard that the pin of the entomologist is with difficulty made to enter. They are somewhat square in form, with the upper surface highly polished, feeding chiefly on putrid substances and found in great abundance in spring on the dung of oxen and horses." &mdash; Encyclopedia Britanica, 1893

Mimic Beetle

"The Mimic Beetles seldom exceed one-third of an inch in length, and are of very solid consistence,…

Oil Beetle.

Oil Beetle

Oil Beetle.

This illustration shows the work of the destructive pine-bark beetle: a, a, a, a, characteristic forms or primary galleries; b, normal forms of larval mines; c, abnormal forms of larval mines-all slightly reduced.

Pine Beetle

This illustration shows the work of the destructive pine-bark beetle: a, a, a, a, characteristic forms…

"Pine-bark beetle whose work has made pine lumber expensive; adult." &mdash;Davison, 1906

Pine Beetle

"Pine-bark beetle whose work has made pine lumber expensive; adult." —Davison, 1906

"Pine-bark beetle whose work has made pine lumber expensive; pupa." &mdash;Davison, 1906

Pine Beetle

"Pine-bark beetle whose work has made pine lumber expensive; pupa." —Davison, 1906

"Pine-bark beetle whose work has made pine lumber expensive; larva." &mdash;Davison, 1906

Pine Beetle

"Pine-bark beetle whose work has made pine lumber expensive; larva." —Davison, 1906

This illustration shows the destructive pine-bark beetle: a, adult beetle, enlarged; b, adult, natural size; c, pupa, enlarged; d, larva, enlarged; e, young larva, enlarged; f, egg, enlarged; g, larva, natural size.

Pine Beetle Stages

This illustration shows the destructive pine-bark beetle: a, adult beetle, enlarged; b, adult, natural…

Also known as Doryphora decemlineata. It is approximately 10 millimeters in length, with a bright yellow body and bold brown stripes along the length of each of its elytra.

Potato Beetle

Also known as Doryphora decemlineata. It is approximately 10 millimeters in length, with a bright yellow…

Byturus unicolor insect.

Raspberry Beetle

Byturus unicolor insect.

"Is of an ashy-blue color and is a very elegant species." &mdash Goodrich, 1859

Rosalie Beetle

"Is of an ashy-blue color and is a very elegant species." &mdash Goodrich, 1859

"Many of the dung beetles, among which the Sacred Beetle of the Egyptians, <em>Scarabus Aegyptiorum</em>, holds a prominent place, are remarkable for inclosing their eggs in a small pellet of dung, which they then roll along with their hind-legs, until they drop it into a hole which they have dug for its reception." &mdash; Goodrich, 1859

Sacred Beetle

"Many of the dung beetles, among which the Sacred Beetle of the Egyptians, Scarabus Aegyptiorum,…

"The Sacred Beetle of Egypt, Ateuchus sacer, somewhat resembles the Dor in form and habits. After depositing her egg on a piece of dung the female rolls the mass about in the sunshine with her forelegs until it forms a rounded ball. The process of hatching is thus accelerated, and a thin hardened crust is formed around the softer material inclosing the egg. A hole is then dug in the earth by means of its powerful forelegs, into which the ball is rolled and then covered over with earth, where it remains until fully developed. Those beetles show great perseverance in conveying the egg-laden pellets to their destination, frequently carrying them over rough ground on the broad flat surface of their heads, and seeking, when unable singly to complete the work, the assistance of their fellows." &mdash; Encyclopedia Britanica, 1893

Sacred Beetle

"The Sacred Beetle of Egypt, Ateuchus sacer, somewhat resembles the Dor in form and habits. After depositing…

An extensive genus of coleopterous insects tribes, and answering to the section Lamellicornes of Latereille. They are sometimes called dung-beetles, from their habit of enclosing their eggs in pellet of dung, which are placed in holes excavated for their reception.

Sacred Beetle

An extensive genus of coleopterous insects tribes, and answering to the section Lamellicornes of Latereille.…

"The <em>S. nasicornis</em> is a European species, common in gardens, and is noted for a pair of curious conical horns upon its head." &mdash; Goodrich, 1859

Scarab Beetle

"The S. nasicornis is a European species, common in gardens, and is noted for a pair of curious…

Scarabaeidae. Stout-bodied beetles, many with bright metallic colors.

Scarab Beetle

Scarabaeidae. Stout-bodied beetles, many with bright metallic colors.

"Galleries of the spruce-destroying beetle beneath the bark of a spruce tree." &mdash;Davison, 1906

Spruce Beetle

"Galleries of the spruce-destroying beetle beneath the bark of a spruce tree." —Davison, 1906

"In the European Stag Beetle, <em>Lucanus cervus</em>, as well as the <em>L. dama</em> of our country, called the <em>Horn Beetle</em>, the leaves are short and distinct, rendering the club pectinated." &mdash; Goodrich, 1859

Stag Beetle

"In the European Stag Beetle, Lucanus cervus, as well as the L. dama of our country,…

A beetle named after its large, distinctive mandibles found on the males.

Stag Beetle

A beetle named after its large, distinctive mandibles found on the males.

The males have mandibles almost as long as itself, and branched like antlers.

Stag Beetle

The males have mandibles almost as long as itself, and branched like antlers.

Lucanus Dama, the most common stag beetle in which the mandibles of the male are much enlarged and sickle-shaped; whence the common term "pinching-bug"

Stag Beetle

Lucanus Dama, the most common stag beetle in which the mandibles of the male are much enlarged and sickle-shaped;…

An illustration of the dorsal view of a stag beetle.

Stag Beetle (Dorsal)

An illustration of the dorsal view of a stag beetle.

An illustration of the under of a stag beetle.

Beetle, Stag (Ventral)

An illustration of the under of a stag beetle.

"Subangular Ground-beetle (Aspidoglossa subangulata). Vertical line shows natural size."-Whitney, 1902

Subangular Ground Beetle

"Subangular Ground-beetle (Aspidoglossa subangulata). Vertical line shows natural size."-Whitney, 1902

A pair of sugar beetles resting on leaves.

Sugar Beetle

A pair of sugar beetles resting on leaves.

The Annulosa and Mollusca are furnished with a distinct alimentary canal that does not open into the body cavity. In most cases, the digestive canal communicates with the outer world by two-openings- a mouth and an excretory aperture. The annulosa system is demonstrated in the digestive apparatus of a beetle.

The Digestive Apparatus of a Beetle

The Annulosa and Mollusca are furnished with a distinct alimentary canal that does not open into the…

Also known as crioceris asparagi. A-Beetle; B-Egg; C-Newly hatched larva; D-Full-grown larva; E-Pupa

The Life Cycle of the Asparagus Beetle

Also known as crioceris asparagi. A-Beetle; B-Egg; C-Newly hatched larva; D-Full-grown larva; E-Pupa

Beetles form a large group of insects that number over 300,000 species. They all have hard wings which meet in the center of the back forming a line.

Tiger Beetles

Beetles form a large group of insects that number over 300,000 species. They all have hard wings which…

"Its distinguishing features are its small eyes, separate posterior coxae, and widely inflexed margin of the wing covers."-Whitney, 1902

Tiger Beetle

"Its distinguishing features are its small eyes, separate posterior coxae, and widely inflexed margin…

A group of beetles known for being predators. They have bulging eyes and slender legs.

Tiger Beetle

A group of beetles known for being predators. They have bulging eyes and slender legs.