Aphid vs Water Measurer

Side-by-side species comparison

Attribute Aphid Water Measurer
Scientific Name Myzus persicae Hydrometra australis
Order Hemiptera Hemiptera
Family Aphididae Hydrometridae
Size 1-3 mm 8-11 mm
Habitat Underground Ponds & Lakes
Diet Sap Feeders Omnivores
Regions Worldwide Americas, from southern United States to South America
Conservation Least Concern Least Concern

Aphid

Tiny sap-sucking insects with extraordinary reproduction. Can reproduce without mating (parthenogenesis) and give birth to live young that are already pregnant, telescoping generations.

💡

Did You Know?

Aphids can telescope generations — a female can contain a developing daughter, who already has a developing granddaughter inside her, all without mating.

Water Measurer

A very slender, elongate semi-aquatic bug that walks slowly on water surfaces in the Americas. Its head is exceptionally long and narrow with a small rostrum at the tip. It moves with slow, deliberate steps along pond margins.

💡

Did You Know?

It is so lightweight that it can walk on the water surface without breaking the surface tension, leaving no visible dimples where its feet contact the water.