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An old spelling of khermes. A genus of bark-lice, of the family Aphididæ

Chermes

An old spelling of khermes. A genus of bark-lice, of the family Aphididæ

The crab louse can live in almost any form of human hair, leading to its other common name of pubic louse.

Crab-louse

The crab louse can live in almost any form of human hair, leading to its other common name of pubic…

"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,…

Head lice are parasites. That is any plant or animal which feeds upon another living plant or animal without destroying it.

Head Louse

Head lice are parasites. That is any plant or animal which feeds upon another living plant or animal…

"A genus of insects, the type of a very numerous family, which forms the order Parasita or Auoplura. The body is flattened, almost transparent; the segments both of the thorax and abdomen very distinct; the mouth is small and tubular, enclosing a sucker; there are no wings; the legs are short, and are terminated by a claw adapted for taking hold of hairs or feathers. The eyes are simple, one or two on each side of the head. All the species are small, and live parasitically, on human beings, terrestrial mammalia, and birds." — Chambers, 1881

Magnified Louse

"A genus of insects, the type of a very numerous family, which forms the order Parasita or Auoplura.…

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 dog-louse.

Biting Louse

A dog-louse.

A sheep-louse.

Biting Louse

A sheep-louse.

A turkey-louse.

Biting Louse

A turkey-louse.

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…

A hog-louse of the Hermatopinus urius species.

Hog Louse

A hog-louse of the Hermatopinus urius species.

A detailed view of the back of the hog-louse of the Hermatopinus urius species.

Hog Louse

A detailed view of the back of the hog-louse of the Hermatopinus urius species.

A detailed view of the scansorial claw of the hog-louse of the Hermatopinus urius species.

Hog Louse

A detailed view of the scansorial claw of the hog-louse of the Hermatopinus urius species.

A genus of lice classed with the aphidae, which feed as parasites on different kinds of plants. The most notd species is an injurious pest to the vine. This form is native to North America, where it was first observed in 1854.

Phylloxera

A genus of lice classed with the aphidae, which feed as parasites on different kinds of plants. The…