22/05/2025
Froghopper beetle (more accurately, a froghopper or spittlebug, which belongs to the Cercopidae family) is a small insect, not a true beetle, and looks like this:
Size: Typically 5–12 mm long
Shape: Wedge-shaped or oval, with a stout body
Color: Many are brown, black, or green, often with distinctive markings or mottled patterns; some are brightly colored
Wings: Held tent-like over the back when at rest
Eyes: Large, prominent eyes on the side of the head
Jumping ability: They are among the best jumpers in the insect world, which is how they got the name “froghopper”
Their nymphs are the ones responsible for creating "cuckoo spit" on plants—foamy blobs used for protection as they feed on sap.
Froghoppers (spittlebugs) play several important roles in ecosystems, despite often being overlooked due to their small size:
1. Part of the Food Web
Nymphs and adults are a valuable food source for a wide range of predators, including birds, spiders, parasitic wasps, beetles, and other insects.
Their abundance supports biodiversity, especially in wildflower meadows, hedgerows, and gardens.
2. Indicators of Ecosystem Health
Froghopper populations can signal the health of plant communities and soil quality.
Their presence often correlates with diverse, herbaceous vegetation—suggesting a balanced, functioning habitat.
3. Pollinator Assistants (Indirectly)
While not pollinators themselves, froghoppers feed on plant sap and promote plant growth patterns that can attract true pollinators.
Some species may move pollen passively when crawling on flower parts, though this is rare and incidental.
4. Decomposition and Nutrient Cycling
Their spittle (foam) contains microbes and enzymes that can help decompose plant matter and return nutrients to the soil.
Feeding damage also stimulates plant defenses and regenerative growth, influencing plant health dynamics.
5. Host for Parasitic Insects
Many parasitic wasps rely on froghoppers as hosts for their larvae, contributing to population regulation and supporting complex parasitic food webs.
Should You Remove Them?
In gardens: Only if there's a heavy infestation or plant damage. A gentle spray of water can remove the foam.
Encouraging biodiversity and natural predators (like ladybirds, lacewings, and birds) is usually enough to keep them in balance.