Cephus Pygmaeus, wheat-stem saw-fly, outline of larva.

Saw Wheat-Stem Fly

Cephus Pygmaeus, wheat-stem saw-fly, outline of larva.

Cephus Pygmaeus, wheat-stem saw-fly, larva.

Saw Wheat-Stem Fly

Cephus Pygmaeus, wheat-stem saw-fly, larva.

Cephus Pygmaeus, wheat-stem saw-fly, larva in wheat stalk.

Saw Wheat-Stem Fly

Cephus Pygmaeus, wheat-stem saw-fly, larva in wheat stalk.

Cephus Pygmaeus, wheat-stem saw-fly, adult female.

Saw Wheat-Stem Fly

Cephus Pygmaeus, wheat-stem saw-fly, adult female.

Cephus Pygmaeus, wheat-stem saw-fly, female parasite.

Saw Wheat-Stem Fly

Cephus Pygmaeus, wheat-stem saw-fly, female parasite.

An oak gall-fly.

Gall Fly

An oak gall-fly.

Gall made by the larva of Cynips q. spongifica. a, larve in its cell; b, point of exit of adult.

Cynips Spongifica

Gall made by the larva of Cynips q. spongifica. a, larve in its cell; b, point of exit of adult.

Pithy gall on blackberry, made by Diastrophus nebulosus.

Pithy Gall

Pithy gall on blackberry, made by Diastrophus nebulosus.

Pithy gall on blackberry, section to show cells.

Pithy Gall

Pithy gall on blackberry, section to show cells.

Pithy gall on blackberry, larva.

Gall Wasp

Pithy gall on blackberry, larva.

Pithy gall on blackberry, pupa.

Gall Wasp

Pithy gall on blackberry, pupa.

Long-tailed ichneumon, Thalessa lunator, larva.

Ichneumon

Long-tailed ichneumon, Thalessa lunator, larva.

Long-tailed ichneumon, Thalessa lunator, head of larva.

Ichneumon

Long-tailed ichneumon, Thalessa lunator, head of larva.

Long-tailed ichneumon, Thalessa lunator, pupa.

Ichneumon

Long-tailed ichneumon, Thalessa lunator, pupa.

Long-tailed ichneumon, Thalessa lunator, tip of pupal ovipositor.

Ichneumon

Long-tailed ichneumon, Thalessa lunator, tip of pupal ovipositor.

Long-tailed ichneumon, Thalessa lunator, female adult.

Ichneumon

Long-tailed ichneumon, Thalessa lunator, female adult.

Long-tailed ichneumon, Thalessa lunator, tip of abdomen seen from the side.

Ichneumon

Long-tailed ichneumon, Thalessa lunator, tip of abdomen seen from the side.

Long-tailed ichneumon, Thalessa lunator, male adult.

Ichneumon

Long-tailed ichneumon, Thalessa lunator, male adult.

Long-tailed ichneumon, Thalessa lunator, tip of abdomen.

Ichneumon

Long-tailed ichneumon, Thalessa lunator, tip of abdomen.

Pimpla Conquisitor, pupa.

Ichneumon

Pimpla Conquisitor, pupa.

Pimpla Conquisitor, structural detail.

Ichneumon

Pimpla Conquisitor, structural detail.

Pimpla Conquisitor, structural detail.

Ichneumon

Pimpla Conquisitor, structural detail.

Pimpla Conquisitor, adult.

Ichneumon

Pimpla Conquisitor, adult.

Pimpla Conquisitor, structural detail.

Ichneumon

Pimpla Conquisitor, structural detail.

Pimpla Conquisitor, structural detail.

Ichneumon

Pimpla Conquisitor, structural detail.

Sphinx larva covered with Microgaster cocoons.

Larva

Sphinx larva covered with Microgaster cocoons.

Apanteles species. Little mass of cocoonson leaf, replacing an infested larva.

Apanteles

Apanteles species. Little mass of cocoonson leaf, replacing an infested larva.

Apanteles species. Single cocoon from which adult has issued.

Apanteles

Apanteles species. Single cocoon from which adult has issued.

Apanteles species, adult.

Apanteles

Apanteles species, adult.

Aphelinus mytilaspidis, parasite on scale insects.

Aphelinus

Aphelinus mytilaspidis, parasite on scale insects.

Trichogramma pretiosa, a parasite in insect eggs.

Trichogramma Wasp

Trichogramma pretiosa, a parasite in insect eggs.

Female Isosoma ovipositing in stem of wheat.

Isosoma

Female Isosoma ovipositing in stem of wheat.

Isosoma tritici, larva.

Isosoma

Isosoma tritici, larva.

Isosoma tritici, larva.

Isosoma

Isosoma tritici, larva.

Isosoma tritici, adult female.

Isosoma

Isosoma tritici, adult female.

Isosoma tritici, fore-wing.

Isosoma

Isosoma tritici, fore-wing.

Isosoma tritici, hind wing.

Isosoma

Isosoma tritici, hind wing.

Pelecinus polyturator, male.

Pelecinid Wasp

Pelecinus polyturator, male.

Pelecinus polyturator, female.

Pelecinid Wasp

Pelecinus polyturator, female.

Chrysis species.

Chrysis

Chrysis species.

Cremastogaster lineolata, large worker.

Crematogaster Ant

Cremastogaster lineolata, large worker.

Cremastogaster lineolata, large worker.

Crematogaster Ant

Cremastogaster lineolata, large worker.

Cremastogaster lineolata, head of large worker.

Crematogaster Ant

Cremastogaster lineolata, head of large worker.

Cremastogaster lineolata, female.

Crematogaster Ant

Cremastogaster lineolata, female.

Cremastogaster lineolata, female's wing.

Crematogaster Ant

Cremastogaster lineolata, female's wing.

Cremastogaster lineolata, small worker.

Crematogaster Ant

Cremastogaster lineolata, small worker.

Honey-ant, Myrmecocystus melliger, filled with honey.

Honey Ant

Honey-ant, Myrmecocystus melliger, filled with honey.

Honey-ant, Myrmecocystus melliger, filled with honey.

Honey Ant

Honey-ant, Myrmecocystus melliger, filled with honey.

Pepsis formosus, tarantula-hawk.

Tarantula Wasp

Pepsis formosus, tarantula-hawk.

Specius speciosus carrying a cicada to its home.

Specius

Specius speciosus carrying a cicada to its home.

Fraternal potter-wasp, Eumenes fraterna, wasp.

Potter Wasp

Fraternal potter-wasp, Eumenes fraterna, wasp.

Fraternal potter-wasp, Eumenes fraterna, wasp's cell.

Potter Wasp

Fraternal potter-wasp, Eumenes fraterna, wasp's cell.

Fraternal potter-wasp, Eumenes fraterna, wasp's cell broken up to show the caterpillars stored in it.

Potter Wasp

Fraternal potter-wasp, Eumenes fraterna, wasp's cell broken up to show the caterpillars stored in it.

Nest of Polistes gallicola.

Polistes

Nest of Polistes gallicola.

Hair of bumble-bee.

Bee Hair

Hair of bumble-bee.

Hair of bumble-bee.

Bee Hair

Hair of bumble-bee.

Hair of bumble-bee.

Bee Hair

Hair of bumble-bee.

Hair of bumble-bee.

Bee Hair

Hair of bumble-bee.

Hair of bumble-bee.

Bee Hair

Hair of bumble-bee.

Hair of bumble-bee.

Bee Hair

Hair of bumble-bee.