Aphid

Scientific Name: Family Aphididae

Order & Family: Order Hemiptera, Family Aphididae

Size: 1 to 10 millimeters (0.04 to 0.39 inches)

Aphid

Natural Habitat

Found globally on various host plants, typically on stems, buds, or the underside of leaves.

Diet & Feeding

Herbivorous; they use piercing-sucking mouthparts to feed on plant sap (phloem).

Behavior Patterns

Often found in large colonies. They reproduce rapidly, often parthenogenetically (without mating). They excrete a sticky substance called honeydew and may have a symbiotic relationship with ants.

Risks & Benefits

Major agricultural and garden pests that can cause leaf curling, stunted growth, and transmit plant viruses. They benefit the ecosystem as a primary food source for ladybugs, lacewings, and hoverfly larvae.

Identified on: 3/21/2026