"A genus of moths belonging to the family Zygænidæ, founded by clemens in 1862.They are small and delicate and of somber colors."-Whitney, 1902

Acoloithus

"A genus of moths belonging to the family Zygænidæ, founded by clemens in 1862.They are…

"A genus of parasitic Hymenoptera, of the family Braconidæ."-Whitney, 1902

Aleiodes

"A genus of parasitic Hymenoptera, of the family Braconidæ."-Whitney, 1902

"The cocoons represent the pupa stage; they are commonly called ant-eggs, and are carefully tended by the workers."

Red Wood Ant Pupae (bottom)

"The cocoons represent the pupa stage; they are commonly called ant-eggs, and are carefully tended by…

"The cocoons represent the pupa stage; they are commonly called ant-eggs, and are carefully tended by the workers."

Red Wood Ant Pupae (side)

"The cocoons represent the pupa stage; they are commonly called ant-eggs, and are carefully tended by…

While the pupae are in the cocoon, they are incased in a shelter, often called an ant-house.

Red Wood Ant Shelter of Pupae, so-called ant-house

While the pupae are in the cocoon, they are incased in a shelter, often called an ant-house.

The pupa of a <em>Coleophora malivorella</em>

Apple Case-Bearer

The pupa of a Coleophora malivorella

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,…

"Peach tree borer, chip cocoon with extruded pupa skin." &mdash;Davison, 1906

Peach Tree Borer

"Peach tree borer, chip cocoon with extruded pupa skin." —Davison, 1906

This pupa, or chrysalis, is fastened to a little silken pad by the tail, but is also sustained by a silken band in front of the middle, so that it is said to be girthed.

Black Swallowtail Butterfly Larva

This pupa, or chrysalis, is fastened to a little silken pad by the tail, but is also sustained by a…

Illustrated is the end of the cocoon of the cecropia moth. It shows where the moth gets out.

Cecropia Moth Cocoon

Illustrated is the end of the cocoon of the cecropia moth. It shows where the moth gets out.

Currant-worm, cocoon.

Currant Worm

Currant-worm, cocoon.

The horse-flies or <em>tabanidae</em>, comprise another set of troublesome creatures, of medium or large size. They have short, broad heads, enormous eyes, and short, though many jointed, feelers. The abdomen is oval, a little flattened, and the body convex and powerful. The mouth parts are well developed, consisting of a series of five sharped-pointed lancets so rigid that they readily pierce the skin and draw blood almost as soon as they touch.

Horse Fly

The horse-flies or tabanidae, comprise another set of troublesome creatures, of medium or large…

The pupa of the horse fly.

Horse Fly Pupa

The pupa of the horse fly.

The pupa of the Sciara tritici.

Fungus Gnat

The pupa of the Sciara tritici.

The pupa of the Sciara tritici from the side.

Fungus Gnat

The pupa of the Sciara tritici from the side.

"A genus of moths, family Bombycid&aelig;, established by Hubner in 1816."-Whitney, 1902

Maple-Worm

"A genus of moths, family Bombycidæ, established by Hubner in 1816."-Whitney, 1902

"Life history of the silk moth (Bombyx mori). A, caterpillar; B, pupa; C, imago; the cocoon is cut open to show the pupa lying within." -Thomson, 1916

Silk Moth Stages

"Life history of the silk moth (Bombyx mori). A, caterpillar; B, pupa; C, imago; the cocoon is cut open…

The larva and pupa stages of the cabbage plusia.

Cabbage Plusia Larva and Pupa

The larva and pupa stages of the cabbage plusia.

A parasite of the chalcidid&aelig; family.

Parasite

A parasite of the chalcididæ family.

Shown is the lengthwise section of the promethea cocoon. Also shown is the valve-like opening where the moth escaped.

Promethea Cocoon

Shown is the lengthwise section of the promethea cocoon. Also shown is the valve-like opening where…

The cocoon of the promethea moth is made in the roll of a leaf. The insect weaves a web around the leaf stalk and ties it to the parent stem. That way the leaf cannot fall.

Promethea Moth Cocoon

The cocoon of the promethea moth is made in the roll of a leaf. The insect weaves a web around the leaf…

A caterpillar with cocoons of the pupae of ichneumon fly parasites.

Pupa

A caterpillar with cocoons of the pupae of ichneumon fly parasites.

"Strawberry False-worm (Emphytus maculatus). 1, 2 pupa, ventral and lateral views (line shows natural size); 3, fly, enlarged (wings on one side detached); 4, larva; 5, fly with wings closed; 6, larva curled up; 7, coccoon; 8, antenna; 9, egg. (4, 5, 6, and 7 natural size; 8 and 9 enlarged.)" -Whitney, 1911

Strawberry Sawfly

"Strawberry False-worm (Emphytus maculatus). 1, 2 pupa, ventral and lateral views (line shows natural…

Spider, with cocoon attached to spinnerets.

Spider

Spider, with cocoon attached to spinnerets.

The cocoon of Sigalphus curculionis, a species of parasitoid wasps. These insects use other insects as hosts until they are eventually killed.

Parasite Wasp Cocoon

The cocoon of Sigalphus curculionis, a species of parasitoid wasps. These insects use other insects…

"Section of wormy apple; a, codling moth; b, cocoon." &mdash; Goff, 1904

Wormy Apple

"Section of wormy apple; a, codling moth; b, cocoon." — Goff, 1904

"Spilosoma virginica: a, female moth; b, full-grown larva; c, light form of larva, not quite mature; d, cocoon; e, pupa." -Department of Agriculture, 1899

Yellow Bear Stages

"Spilosoma virginica: a, female moth; b, full-grown larva; c, light form of larva, not quite mature;…