Numerous species of aphids, or plant lice, are known, and they are among the greatest pests of the gardener and farmer.

Aphid

Numerous species of aphids, or plant lice, are known, and they are among the greatest pests of the gardener…

The common cockroach, male.

Cockroach

The common cockroach, male.

The common cockroach, female.

Cockroach

The common cockroach, female.

Water bugs, or Hemiptera, are true bugs.

Waterbug

Water bugs, or Hemiptera, are true bugs.