"The female attains to six inches in length, and weighs as much as thirty thousand workers. It is an…
"The male weighs as much as thirty workers, and attains the length of nearly four-fifths of an inch."
"The soldiers are twice as long, and weigh as much as fifteen workers. They may be distinguished by…
"The workers are one fifth of an inch long; the body soft and of extreme delicacy, but the sharp mandibles…
Buffalo tree-hopper, Ceresa bubalus- tip of abdomen, showing ovipositor.
Buffalo tree-hopper, Ceresa bubalus- tip of abdomen, mouth
Buffalo tree-hopper, Ceresa bubalus- tip of abdomen, tip of abdomen
A "tumble-bug" of the Copris carolina species; larva.
A "tumble-bug" of the Copris carolina species; the cell in which it lived.
A "tumble-bug" of the Copris carolina species; pupa.
A "tumble-bug" of the Copris carolina species; female beetle.
The twig-girdler of the Oncideres cingulatus species; a, beetle at work; b, egg-puncture; c, girdling…
Fraternal potter-wasp, Eumenes fraterna, 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.
Pepsis formosus, tarantula-hawk.
Trichogramma pretiosa, a parasite in insect eggs.
A water-boatman, Notenecta species.
A water-strider, Rheumatobates rileyi, female.
A water-strider, Rheumatobates rileyi, female; ovipositor.
A water-strider, Rheumatobates rileyi, female; hind tarsus.
A water-tiger, Dytiscus marginalis species; larva devouring an Agrion larva.
A water-tiger, Dytiscus marginalis species; pupa.
A water-tiger, Dytiscus marginalis species; male beetle, the elytra of the female at side.
A water-tiger, Dytiscus marginalis species; anterior tarsus of the male, with sucking disks.
A water-tiger, Dytiscus marginalis species; tarsus of the female.
Water bugs, or Hemiptera, are true bugs.
A Belostama Americana insect.