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…

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…

These beetles are brown and are often called June bugs.

May Beetle

These beetles are brown and are often called June bugs.

These beetles are brown and are often called June bugs.

May Beetle

These beetles are brown and are often called June bugs.

Wood-lice are commonly found under stones or in crevices of old walls. When disturbed, they curl up to protect their soft abdomens.

Wood Louse

Wood-lice are commonly found under stones or in crevices of old walls. When disturbed, they curl up…

Wood-lice are commonly found under stones or in crevices of old walls. When disturbed, they curl up to protect their soft abdomens.

Wood Louse

Wood-lice are commonly found under stones or in crevices of old walls. When disturbed, they curl up…

Water bugs, or Hemiptera, are true bugs.

Waterbug

Water bugs, or Hemiptera, are true bugs.

Numerous species of aphids, or plant lice, are known, and they are among the greatest pests of the gardener and farmer.

Aphid

Numerous species of aphids, or plant lice, are known, and they are among the greatest pests of the gardener…

The common cockroach, male.

Cockroach

The common cockroach, male.

The common cockroach, female.

Cockroach

The common cockroach, female.

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.

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.

A working ant.

Slave Ant

A working ant.

The Queen Ant of slave-making ants.

Queen Ant

The Queen Ant of slave-making ants.

"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…

"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…

Fly

Fly

Fly

A fly's foot.

Fly's Foot

A fly's foot.

A small insect; a pismire.

Ant

A small insect; a pismire.

The Colorado Potato-bug.

Potato Bug

The Colorado Potato-bug.

Two hobo bugs walking by a dog sleeping in his dog house.

Hobo Insects

Two hobo bugs walking by a dog sleeping in his dog house.

A snail approaching bugs swimming at the waters edge.

Snail

A snail approaching bugs swimming at the waters edge.

A small air-ship piloted by bugs crashing in to a spider web.

Spider Web Crash

A small air-ship piloted by bugs crashing in to a spider web.

Two bugs outside of their acorn home arguing about their gas bill.

Bugville

Two bugs outside of their acorn home arguing about their gas bill.

A loud bird that uses it beak to bore holes in tree trunks to feed on bugs.

Great Spotted Woodpecker

A loud bird that uses it beak to bore holes in tree trunks to feed on bugs.

"Lady-bird beetles, or "lady bugs." These beetles are very destructive to plant lice." — Goff, 1904

Ladybug

"Lady-bird beetles, or "lady bugs." These beetles are very destructive to plant lice." — Goff,…

"Lady-bird beetles, or "lady bugs." These beetles are very destructive to plant lice." — Goff, 1904

Ladybug

"Lady-bird beetles, or "lady bugs." These beetles are very destructive to plant lice." — Goff,…

"Lady-bird beetles, or "lady bugs." These beetles are very destructive to plant lice." — Goff, 1904

Ladybug

"Lady-bird beetles, or "lady bugs." These beetles are very destructive to plant lice." — Goff,…

"Lady-bird beetles, or "lady bugs." These beetles are very destructive to plant lice." — Goff, 1904

Ladybug

"Lady-bird beetles, or "lady bugs." These beetles are very destructive to plant lice." — Goff,…

This species can be heard in summer and autumn at most any time making its peculiar trilling noise in the shade and forest trees.

Cicada Pruinosa

This species can be heard in summer and autumn at most any time making its peculiar trilling noise in…

Also known as the Seventeen-Year Locust, derives its specific name from the fact that it makes its appearance in certain districts at stated intervals of seventeen years in immense numbers, when the millions of them, swarming on the forest and fruit trees, almost deafen the observer with their trilling calls to the female, and form an abundant feast to the swine, fowls, and wild animals on the land, and if near a river or lake, to the fishes in the water.

Cicada Septendecim

Also known as the Seventeen-Year Locust, derives its specific name from the fact that it makes its appearance…

Otiocerus coquebertii, a small insect of a somewhat elongated form and having a small projection in front, resembling the lantern of the true fulgora or lantern fly of Surinam, but on a very diminutive scale; it feeds on the wild grape, beech, and oak; it is 0.35 to 0.45 in length, and of a yellowish-white color, with a bright carmine red stripe running longitudinally along each side of its wing, and which stripe is usually forked at its hinder end.

Planthopper

Otiocerus coquebertii, a small insect of a somewhat elongated form and having a small projection in…

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…

A small homoterous insect, <em>Phylloscelis Atra</em> (var. <em>pallescens</em>) is not uncommon among the brambles and weeds in meadows in Maryland; it is one of a singular round or broad oval shape, being about 0.20 in length by 0.13 in breadth; the fore thigh are much thickened, and the hind tibiae or shanks are quite long and spiney on their outer edges, and are fitted for leaping. The color of this insect is black, having two orange-brown stripes on the thorax, two longitudinal stripes of the same color on the outer wings and on the border of their scutel.

Black Leaf-Leg

A small homoterous insect, Phylloscelis Atra (var. pallescens) is not uncommon among…

Grain or oat-plant louse, does much injury to grain, and especially to oats, but is also found on wheat, rye, and other cereals.

Aphis Avence

Grain or oat-plant louse, does much injury to grain, and especially to oats, but is also found on wheat,…

Also known as the Cotton-plant louse, is a great nuisance to the planters, especially when the plants are very small, as then they are more liable to succumb to the attacks of these insects, as by sucking out the sap they distort the stems, and in fact frequently kill the plants before they have attained sufficient maturity and strength to withstand their repeated attacks.

Aphis Gossypii

Also known as the Cotton-plant louse, is a great nuisance to the planters, especially when the plants…

Eriosoma Lanigera, or the Wooly Apple-Tree Blight. These insects appropriate for their generic name two Greek words, signifying wool and body, the insect being partially enveloped in a cottony or wool-like secretion, furnished from its own body. The eggs are deposited in crotches or cracks of the branches or bark, often at or near the surface of the ground, or on new shoots springing from the parent tree.

Wooly Aphid

Eriosoma Lanigera, or the Wooly Apple-Tree Blight. These insects appropriate for their generic name…

Eriosoma Imbricata. Found very abundantly on birch in Maryland in October. These insects cluster together on the twigs, and have the appearance of many small spots of snow-like wool or down moving up and down by jerks, the hinder parts of the insect being covered with this downy secretion.

Wooly Aphid

Eriosoma Imbricata. Found very abundantly on birch in Maryland in October. These insects cluster together…

Scale-insect, was found on imported lemons in Jacksonville, Fla. This insect is said to be allied to <em>Aspidiotus</em> (<em>Coccus</em>) <em>citricola</em> of Boisduval, which has been very injurious to the orange in the maritime Alps in Northern Italy.

Aspidiotus Citricola

Scale-insect, was found on imported lemons in Jacksonville, Fla. This insect is said to be allied to…

The females deposit their eggs, which are small, oval, and black, on twigs and bark in the autumn; the insect is hatched out the next spring, and feeds upon the sap of the tree. The first broods are all females, which in a short time, without any intercourse with the males, give birth to living young by the process of gemmation. These also produce other young ones, which are all females as long as the summer lasts, and it is only in the autumn that males are produced, which, uniting with the females, become the parents of the eggs for the following spring brood, thus bearing living young all the summer, and laying eggs which can withstand the frosts of the winter in autumn for the following spring season, while the parent insects in winter are destroyed by the wet and cold weather and alternate freezing and thawing.

Apple Plant Louse

The females deposit their eggs, which are small, oval, and black, on twigs and bark in the autumn; the…

The females deposit their eggs, which are small, oval, and black, on twigs and bark in the autumn; the insect is hatched out the next spring, and feeds upon the sap of the tree. The first broods are all females, which in a short time, without any intercourse with the males, give birth to living young by the process of gemmation. These also produce other young ones, which are all females as long as the summer lasts, and it is only in the autumn that males are produced, which, uniting with the females, become the parents of the eggs for the following spring brood, thus bearing living young all the summer, and laying eggs which can withstand the frosts of the winter in autumn for the following spring season, while the parent insects in winter are destroyed by the wet and cold weather and alternate freezing and thawing.

Apple Plant Louse

The females deposit their eggs, which are small, oval, and black, on twigs and bark in the autumn; the…

A large aphis is found in clusters on the under side of limbs of hickory, oak, and basswood and walnut, July and August, puncturing the bark and sucking the sap.

Hickory Aphis

A large aphis is found in clusters on the under side of limbs of hickory, oak, and basswood and walnut,…

Eriosoma Tesselata was found on birch in Maryland, in clusters near the ends of twigs, in the autumn. It is of a black color, with white spots on the fore part of its body, and is covered with a snow white down or wool on its hinder part.

Wooly Aphid

Eriosoma Tesselata was found on birch in Maryland, in clusters near the ends of twigs, in the autumn.…

A grape-vine leaf gall-louse. The insect forms galls on the under side of the grape-vine leaves, and although they appear to do comparatively little injury to the vine, they are extremely interesting to vine-growers.

Fitch

A grape-vine leaf gall-louse. The insect forms galls on the under side of the grape-vine leaves, and…

Phylloxera Vastatrix, a grape-vine-root gall-louse, is by many entomologists supposed to be another form of the Pemphigus vitifoliae above mentioned, but that, instead of living above ground and forming hollow bag-like galls on the leaves, it lives under-ground on the roots, upon which it forms knotty swellings or galls.

Grape-Root Louse

Phylloxera Vastatrix, a grape-vine-root gall-louse, is by many entomologists supposed to be another…

Pediculus Pubis. The crab-louse is gray-black and is a much broader square form than the other two species of louse, that has been a great scourge to soliders in time of war. This insect has been named the crab-louse from its broad crab-like appearance. It is of grayish color; the head is small, and appears to be united with the broad body without any thorax; it inhabits the hairy part of the body, under the arms or shoulders, in the beard, etc., but appears to avoid the head. These insects pierce deeply into the skin of mankind, and produce an intolerable itching.

Crab Louse

Pediculus Pubis. The crab-louse is gray-black and is a much broader square form than the other two species…

Cysts on a living rose leaf.

Cysts

Cysts on a living rose leaf.

Cysts on a living rose leaf.

Cysts

Cysts on a living rose leaf.

Cysts on a living rose leaf, sectional view.

Cysts

Cysts on a living rose leaf, sectional view.

Spores and cysts on a living rose leaf.

Cysts

Spores and cysts on a living rose leaf.

An image of spores.

Spores

An image of spores.

A French Phylloxera, slightly distorted.

Phylloxera

A French Phylloxera, slightly distorted.

French Phylloxera, distorted in mounting.

Phylloxera

French Phylloxera, distorted in mounting.

American Phylloxera.

Phylloxera

American Phylloxera.

American Phylloxera.

Phylloxera

American Phylloxera.

A Podurid, or spring-tail, found on manure beds.

Podurid

A Podurid, or spring-tail, found on manure beds.

A dragon-fly and its development. Larva and pupa feeding at 1 and 3; 2, nymph ready to change; 4, a pupa skin from which 5, the adult, has emerged.

Dragonfly

A dragon-fly and its development. Larva and pupa feeding at 1 and 3; 2, nymph ready to change; 4, a…

Larva of the Agrion.

Agrion

Larva of the Agrion.

An agrion insect.

Agrion

An agrion insect.