Insects diurnal

Dogwood Spittlebug

Clastoptera proteus

A master of disguise and moisture, the Dogwood Spittlebug turns plant sap into a bubbly fortress. Spotting their distinctive 'cuckoo spit' is a sure sign that your backyard ecosystem is thriving.

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Quick Identification

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Size

3-5 mm (0.12-0.20 inches) in length

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Colors

Variable colors ranging from dark brown to black, typically marked with bright yellow or orange spots on the wings and a prominent yellow scutellum (the triangular plate on the back).

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Key Features

Globose, hunchbacked body shape
Distinctive yellow or orange markings on a dark background
Blunt, rounded head
Usually found in close proximity to frothy 'spittle' masses on dogwood shrubs

When You’ll See Them

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Activity pattern diurnal

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Peak hours 9 AM-5 PM

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Season May-August

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Diet Nymphs and adults feed exclusively on xylem fluid (plant sap) extracted from host plants, specifically focusing on dogwoods (Cornus species) and occasionally other woody shrubs like blueberries or cranberries.

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Habitat Commonly found in suburban gardens, forest edges, and damp woodland areas where dogwood trees are present.

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Behavior

The Dogwood Spittlebug is best known for the unique 'spittle' or froth that the nymphs produce. This bubbly substance is actually a mixture of excess plant sap and air, whipped into a foam by the insect's abdomen. This froth serves a critical dual purpose: it hides the vulnerable nymph from predators like birds and spiders, and it maintains a high-humidity microclimate to prevent the insect's soft body from drying out.

As adults, these insects are commonly known as 'froghoppers' due to their incredible jumping ability. When startled, they can propel themselves many times their body length into the air using powerful hind legs. While they are solitary insects, you may find several individuals on a single host plant if the conditions are right. They are generally harmless to humans and, despite feeding on plant sap, rarely cause significant damage to healthy dogwood trees in a backyard setting.

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Camera Tips

Capturing a Dogwood Spittlebug on camera requires a different strategy than larger backyard wildlife because of their tiny size. The best way to find them is to first locate their 'spittle' masses on the stems or leaf axils of dogwood shrubs during the late spring. Once you find a bubble mass, position your camera approximately 6 to 12 inches away. Because these insects are so small, you will likely need a camera with macro capabilities or a clip-on macro lens for your AI camera to get a clear, identifiable image.

Since spittlebugs don't move much while in their nymph stage, use a time-lapse setting rather than a motion trigger if your camera allows it. This will let you watch the 'spittle' mass grow and change over several days. For adults, which are more mobile, set your camera to high-sensitivity motion detection. Because they are diurnal, ensure your camera is positioned to take advantage of bright, indirect sunlight, which will highlight the iridescent black and yellow patterns on the adult's back.

Focus your camera on the new growth of the dogwood, as this is where the sap is most accessible and where the insects prefer to congregate. If you are using a trail camera with a standard lens, try to find a 'choke point' on a branch where multiple spittle masses are visible; the wide shot won't show the insect's face, but it will capture the fascinating structural nature of their bubble homes. Avoid using heavy baits or lures, as these insects are specialists that respond only to the host plant itself.

Similar Species

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

Meadow Spittlebug

Usually brown or tan without the bold yellow spots of the Dogwood Spittlebug; found more often in grasses and herbaceous plants.

Heath Spittlebug

Similar in shape but typically prefers heath family plants like blueberries and has a different wing pattern.

Frequently Asked Questions

Dogwood Spittlebugs are diurnal, meaning they are most active during the daylight hours. You are most likely to see adults jumping between leaves or nymphs active within their froth during the warmth of the afternoon.

The most effective way to attract them is to plant native dogwood species (Cornus florida or Cornus sericea). They are host-specific, so providing their preferred food source is essential.

They feed on xylem fluid, which is a nutrient-poor but water-rich sap found inside dogwood trees and other woody shrubs. They use piercing-sucking mouthparts to tap into the plant's vascular system.

Yes, they are very common in suburban landscapes, especially in neighborhoods with mature landscaping or those bordering wooded areas where dogwoods naturally occur.

The Dogwood Spittlebug is specifically identified by its preference for dogwood plants and its dark body with bright yellow markings, particularly the yellow scutellum on its back, which is more vibrant than the drabber Meadow Spittlebug.

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