Insects diurnal

Heath Spittlebug

Clastoptera saintcyri

Look closely at the stems of your berry bushes and you might find a cluster of tiny bubbles—the secret fortress of the Heath Spittlebug. These tiny, 'humpbacked' insects are the champion jumpers of the backyard, capable of vaulting out of sight in the blink of an eye.

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Quick Identification

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Size

3 to 4.5 mm (0.12 to 0.18 inches) in length

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Colors

Deep brown to charcoal black body, often featuring pale yellow or white transverse bands on the head and wing covers; nymphs are pale green or yellow.

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Key Features

Globose, humpbacked body shape
Protective white frothy 'spittle' mass in nymph stage
Transverse yellow or pale markings on the face and wings
Powerful hind legs designed for explosive jumping

When You’ll See Them

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Activity pattern diurnal

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Peak hours 10 AM - 4 PM

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Season May-August

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Diet Xylem sap primarily from plants in the heath family (Ericaceae), such as blueberries, huckleberries, cranberries, and azaleas.

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Habitat Acidic environments including bogs, heathlands, pine barrens, and suburban gardens containing host shrubs.

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Behavior

The Heath Spittlebug is best known for the architectural marvels created by its nymphs. These young insects excrete a fluid that they whip into a thick, soapy foam using their legs. This 'spittle' serves multiple purposes: it keeps the soft-bodied nymph moist, insulates it against temperature swings, and hides it from predators who find the bitter, bubbly mass unappetizing.

As adults, they abandon their bubbly homes and take to the air—or more accurately, the 'jump.' They are among the most proficient jumpers in the animal kingdom relative to their size, using a catapult-like mechanism in their hind legs to vanish from a plant stem in milliseconds if they feel threatened. They are generally solitary and spend their days quietly feeding on the xylem of their host plants, often remaining unnoticed due to their small size and dark coloration.

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Camera Tips

To capture high-quality footage of the Heath Spittlebug, you must master the art of macro-placement. These insects are tiny, so your camera needs to be positioned within 6 to 12 inches of the host plant’s stems. Look for 'cuckoo spit'—the white foamy masses—on blueberry or huckleberry bushes in late spring. This is your target zone. Set your camera on a stable mount or a flexible tripod at a height of 1 to 3 feet from the ground, ensuring the lens is focused directly on the foam or the stem just above it.

Lighting is the biggest challenge when filming such small, dark subjects. Natural sunlight is preferred, but ensure the camera isn't facing directly into the sun, which can wash out the details of their dark wing covers. If your camera setup allows for an external light source, a small LED panel set to a low, warm setting can help highlight the yellow markings on the insect’s face. Because they are diurnal, your best chance for activity is during the warmest part of the day when adults are most likely to be moving between stems.

For the best results with AI-powered cameras, use a high-sensitivity motion setting or, better yet, a time-lapse mode. Since the movement of a 4mm insect might not always trigger a standard PIR sensor, a time-lapse interval of one photo every 20-30 seconds during peak daylight hours will ensure you catch them as they emerge from their spittle or land on a new branch. Avoid areas with high wind, as swaying branches will create hundreds of 'false' triggers and make it difficult to keep the tiny subject in focus. If you want to see the adult, wait for the spittle masses to begin drying up in early summer; this is the signal that the adults are about to emerge and begin their active jumping phase.

Similar Species

Species that look similar or are commonly confused with Heath Spittlebug.

Meadow Spittlebug

Much more elongated and variable in color; found on grasses and herbaceous plants rather than woody heath shrubs.

Dogwood Spittlebug

Similar globose shape but features bright yellow bands and is almost exclusively found on dogwood trees.

Frequently Asked Questions

Heath Spittlebugs are diurnal and are most active during the sunniest, warmest parts of the day, typically between late morning and late afternoon. This is when adults are most likely to be seen jumping between host plants.

The best way to attract Heath Spittlebugs is to plant their preferred host shrubs. They favor plants in the Ericaceae family, such as native blueberries, huckleberries, cranberries, and rhododendrons, especially in areas with slightly acidic soil.

Both nymphs and adults feed on xylem fluid (sap) from woody shrubs. They use piercing-sucking mouthparts to tap into the plant's vascular system, though they rarely cause enough damage to harm the plant's overall health.

Yes, they are quite common in suburban areas provided there are suitable host plants. Many ornamental garden shrubs like azaleas can support a healthy population of these insects.

You can distinguish the Heath Spittlebug by its 'globose' or rounded shape and its specific preference for heath plants. Unlike the more common Meadow Spittlebug, which is elongated and mottled, the Heath Spittlebug is darker, smaller, and has a more 'humpbacked' appearance.

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