ClipArt ETC
"Aphelinus mytilaspidis. (Cross shows natural size)."-Whitney, 1902

Aphelinus

"Aphelinus mytilaspidis. (Cross shows natural size)."-Whitney, 1902

This illustration shows the Gadfly of the Ox. This illustration is enlarged, and also shows a Gadfly larvae.

Gadfly of Ox

This illustration shows the Gadfly of the Ox. This illustration is enlarged, and also shows a Gadfly…

The Gadfly of the sheep lays its eggs in the nostrils of the sheep. There, the maggots hatch and live in the frontal sinuses until fully grown, they then drop to the ground and bury themselves. After pupation, they emerge as flies. This illustration is natural size and shows a Gadfly larvae.

Gadfly of Sheep

The Gadfly of the sheep lays its eggs in the nostrils of the sheep. There, the maggots hatch and live…

Gall-fly is a name applied to the members of the family Cynipidae, which are not flies, but are related to ants and bees (order Hymenoptera).

Gall-fly

Gall-fly is a name applied to the members of the family Cynipidae, which are not flies, but are related…

This female parasitic wasp has a strong boring ovipositor for laying eggs in holes she drills in trees.

Ichneumon

This female parasitic wasp has a strong boring ovipositor for laying eggs in holes she drills in trees.

This female parasitic wasp has a strong boring ovipositor for laying eggs in holes she drills in trees.

Ichneumon

This female parasitic wasp has a strong boring ovipositor for laying eggs in holes she drills in trees.

The large Ichneumon fly with long flexible ovipositor.

Ichneumon

The large Ichneumon fly with long flexible ovipositor.

"Gonatopus contortulus. A genus of ichneumon-flies of the family Proctotrupidae and subfamily Dryininae, having raptorial fore tarsi and no wings." -Whitney, 1911

Ichneumon Fly

"Gonatopus contortulus. A genus of ichneumon-flies of the family Proctotrupidae and subfamily Dryininae,…

An illustration of Melampyrum stem; "a, a flower; b, the fruit; c, a bract." -Century, 1889 Melampyrum is a genus of about 10-20 species of herbaceous flowering plants in the family Orobanchaceae, native to temperate regions of the Northern Hemisphere. They are hemiparasites on other plants, obtaining some mineral nutrients from the host plant, though they are able to survive on their own without parasitising other plants. Melampyrum species are used as food plants by the larvae of some Lepidoptera species including Mouse Moth.

Melampyrum

An illustration of Melampyrum stem; "a, a flower; b, the fruit; c, a bract." -Century, 1889 Melampyrum…

"Fungi are either parasitic or, what is much the same thing, saprophytic– i. e., dependant upon decaying organic matter for food. The fungi are many of them a trouble in agriculture, causing corn, hop, and vine mildew, potato disease, and also salmon disease; others, like the mushroom, are saprophytes."—(Charles Leonard-Stuart, 1911)

Rafflesia Harrelli

"Fungi are either parasitic or, what is much the same thing, saprophytic– i. e., dependant upon…

"Fungi are either parasitic or, what is much the same thing, saprophytic– i. e., dependant upon decaying organic matter for food. The fungi are many of them a trouble in agriculture, causing corn, hop, and vine mildew, potato disease, and also salmon disease; others, like the mushroom, are saprophytes."—(Charles Leonard-Stuart, 1911)

Scybalium Fungiforme

"Fungi are either parasitic or, what is much the same thing, saprophytic– i. e., dependant upon…

An illustration of the median longitudinal section through anterior end of the sea lamprey. "a.v.o, Antrio-ventricular opening; br, Brain; br.o, Internal opening of gill sac; d.a, Dorsal aorta; d.c, Ductus cuvieri; h.v, Hepatic vein; i.j.v, Inferior jugular vein; N, Notochord; oes, Esophagus; olf, Olfactory organ; oc, Pericardium; p.c.v, Left posterior cardinal vein; pit, Pituitary tube; V, Ventricle; v, Velum." (Britannica, 1910)

Cross Section View of a Sea Lamprey

An illustration of the median longitudinal section through anterior end of the sea lamprey. "a.v.o,…

The Speckled Sea Louse (Eurydice pulchra) is a parasitic crustacean in the Cirolanidae family.

Speckled Sea Louse

The Speckled Sea Louse (Eurydice pulchra) is a parasitic crustacean in the Cirolanidae family.

Tapeworms live in the intestines of mammals.

Tapeworm

Tapeworms live in the intestines of mammals.