Woolly apple-louse, Schizoneura lanigera: a winged adult.

Apple Louse

Woolly apple-louse, Schizoneura lanigera: a winged adult.

Schizoneura Langera in root form, galls caused by them on apple-roots.

Schizoneura Langera

Schizoneura Langera in root form, galls caused by them on apple-roots.

Schizoneura Langera in root form, wingless, wax-coated form.

Schizoneura Langera

Schizoneura Langera in root form, wingless, wax-coated form.

Schizoneura Langera in root form, winged form.

Schizoneura Langera

Schizoneura Langera in root form, winged form.

The pear-psylla, pupa from under side showing the thread0like piercing lancets.

Pear Psylla

The pear-psylla, pupa from under side showing the thread0like piercing lancets.

The pear-psylla, winged adult and stalked egg.

Pear Psylla

The pear-psylla, winged adult and stalked egg.

Buffalo tree-hopper, Ceresa bubalus- tarsus.

Treehopper

Buffalo tree-hopper, Ceresa bubalus- tarsus.

Buffalo tree-hopper, Ceresa bubalus- antenna.

Treehopper

Buffalo tree-hopper, Ceresa bubalus- antenna.

Buffalo tree-hopper, Ceresa bubalus- wing.

Treehopper

Buffalo tree-hopper, Ceresa bubalus- wing.

Buffalo tree-hopper, Ceresa bubalus- mouth

Treehopper

Buffalo tree-hopper, Ceresa bubalus- mouth

Buffalo tree-hopper, Ceresa bubalus- tip of abdomen

Treehopper

Buffalo tree-hopper, Ceresa bubalus- tip of abdomen

Buffalo tree-hopper, Ceresa bubalus- tip of abdomen, showing ovipositor.

Treehopper

Buffalo tree-hopper, Ceresa bubalus- tip of abdomen, showing ovipositor.

Buffalo tree-hopper, Ceresa bubalus- tip of abdomen, mouth

Treehopper

Buffalo tree-hopper, Ceresa bubalus- tip of abdomen, mouth

Buffalo tree-hopper, Ceresa bubalus- tip of abdomen, tip of abdomen

Treehopper

Buffalo tree-hopper, Ceresa bubalus- tip of abdomen, tip of abdomen

a, Ceresa bubalus, ovipositing in slits; b, the eggs; d, arranged as at c, old, scarred punctures shown at e.

Cicada

a, Ceresa bubalus, ovipositing in slits; b, the eggs; d, arranged as at c, old, scarred punctures shown…

The dog-day harvest-fly, Cicada tibicen.

Cicada

The dog-day harvest-fly, Cicada tibicen.

The periodical cicada, pupa.

Cicada

The periodical cicada, pupa.

The periodical cicada, pupa-skin from which the adult has emerged.

Cicada

The periodical cicada, pupa-skin from which the adult has emerged.

The periodical cicada, the adult.

Cicada

The periodical cicada, the adult.

The periodical cicada, egg punctures.

Cicada

The periodical cicada, egg punctures.

The periodical cicada, eggs taken from the egg punctures.

Cicada

The periodical cicada, eggs taken from the egg punctures.

Cicada egg punctures, freshly made.

Cicada

Cicada egg punctures, freshly made.

Cicada egg punctures, old and distended.

Cicada

Cicada egg punctures, old and distended.

Cicada egg punctures, from outside.

Cicada

Cicada egg punctures, from outside.

Cicada egg punctures, cut down on puncture to show the two chambers.

Cicada

Cicada egg punctures, cut down on puncture to show the two chambers.

Cicada egg punctures, side view of an egg-chamber.

Cicada

Cicada egg punctures, side view of an egg-chamber.

Cicada egg punctures, a pair of egg-chambers from which the eggs have been removed.

Cicada

Cicada egg punctures, a pair of egg-chambers from which the eggs have been removed.

Development of a Jassid, Agallia sanguinolenta species; the larva.

Jassid

Development of a Jassid, Agallia sanguinolenta species; the larva.

Development of a Jassid, Agallia sanguinolenta species; the pupa.

Jassid

Development of a Jassid, Agallia sanguinolenta species; the pupa.

Development of a Jassid, Agallia sanguinolenta species; adult.

Jassid

Development of a Jassid, Agallia sanguinolenta species; adult.

Development of a Jassid, Agallia sanguinolenta species; head of larva.

Jassid

Development of a Jassid, Agallia sanguinolenta species; head of larva.

A water-boatman, Notenecta species.

Water Boatman

A water-boatman, Notenecta species.

A Belostama Americana insect.

Giant Waterbug

A Belostama Americana insect.

A water-strider, Rheumatobates rileyi, female.

Water Strider

A water-strider, Rheumatobates rileyi, female.

A water-strider, Rheumatobates rileyi, female; ovipositor.

Water Strider

A water-strider, Rheumatobates rileyi, female; ovipositor.

A water-strider, Rheumatobates rileyi, female; hind tarsus.

Water Strider

A water-strider, Rheumatobates rileyi, female; hind tarsus.

A stage of the wheel-bug, Prionidus cristatus species.

Wheel Bug

A stage of the wheel-bug, Prionidus cristatus species.

A stage of the wheel-bug, Prionidus cristatus species.

Wheel Bug

A stage of the wheel-bug, Prionidus cristatus species.

A stage of the wheel-bug, Prionidus cristatus species.

Wheel Bug

A stage of the wheel-bug, Prionidus cristatus species.

A stage of the wheel-bug, Prionidus cristatus species.

Wheel Bug

A stage of the wheel-bug, Prionidus cristatus species.

The Nabis Fusca insect.

Damsel Bug

The Nabis Fusca insect.

The adult form of Phymata Erosa.

Jagged Ambush Bug

The adult form of Phymata Erosa.

The adult form of Phymata Erosa.

Jagged Ambush Bug

The adult form of Phymata Erosa.

Front leg of Phymata Erosa.

Jagged Ambush Bug

Front leg of Phymata Erosa.

Beak of Phymata Erosa.

Jagged Ambush Bug

Beak of Phymata Erosa.

The bed-bug, Acanthia lectularia species.

Bedbug

The bed-bug, Acanthia lectularia species.

Triphleps insidiosus, the "insidious flower-bug."

Flowerbug

Triphleps insidiosus, the "insidious flower-bug."

Paecilocapsus lineatus, four-lined plant-bug.

Plant Bug

Paecilocapsus lineatus, four-lined plant-bug.

Paecilocapsus lineatus, four-lined plant-bug.

Plant Bug

Paecilocapsus lineatus, four-lined plant-bug.

Paecilocapsus lineatus, four-lined plant-bug's single egg.

Plant Bug

Paecilocapsus lineatus, four-lined plant-bug's single egg.

Paecilocapsus lineatus, four-lined plant-bug's egg mass in currant.

Plant Bug

Paecilocapsus lineatus, four-lined plant-bug's egg mass in currant.

A Dysdercus Suturellus pupa.

Cotton Stainer

A Dysdercus Suturellus pupa.

A Dysdercus Suturellus adult.

Cotton Stainer

A Dysdercus Suturellus adult.

The Chinch-bug, Blissus leucopterus species; long winged form.

Chinch Bug

The Chinch-bug, Blissus leucopterus species; long winged form.

The Chinch-bug, Blissus leucopterus species; short winged form.

Chinch Bug

The Chinch-bug, Blissus leucopterus species; short winged form.

The Chinch-bug, Blissus leucopterus species; egg.

Chinch Bug

The Chinch-bug, Blissus leucopterus species; egg.

The Chinch-bug, Blissus leucopterus species; egg.

Chinch Bug

The Chinch-bug, Blissus leucopterus species; egg.

The Chinch-bug, Blissus leucopterus species; newly-hatched larva.

Chinch Bug

The Chinch-bug, Blissus leucopterus species; newly-hatched larva.

The Chinch-bug, Blissus leucopterus species; larva.

Chinch Bug

The Chinch-bug, Blissus leucopterus species; larva.

The Chinch-bug, Blissus leucopterus species; larva.

Chinch Bug

The Chinch-bug, Blissus leucopterus species; larva.