Insects Active during the day

Glassy-winged Sharpshooter

Homalodisca vitripennis

iNaturalist Wikipedia

A large and distinctive leafhopper, the Glassy-winged Sharpshooter is famous for its transparent wings and its specialized diet of plant sap. While it is a fascinating example of insect engineering, it is also a watchful garden resident that uses clever hide-and-seek tactics to evade discovery.

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Quick Identification

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Size

12–14 mm (0.47–0.55 inches) in length

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Colors

Dark brown to black body with small ivory or yellowish spots on the head and thorax; wings are transparent with reddish-brown veins

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Key Features

Large size for a leafhopper, nearly half an inch long
Transparent (glassy) wings with distinct veining
Head and thorax covered in light-colored speckles
Large, prominent eyes set on the sides of the head

When You’ll See Them

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Activity pattern Active during the day

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Peak hours 10 AM - 4 PM

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Season May-September

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Diet Xylem sap from a wide variety of over 70 plant species, including citrus, grapes, almonds, and many ornamental woody plants.

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Habitat Suburban gardens, orchards, vineyards, and riparian woodlands with plenty of woody host plants.

Behavior

The Glassy-winged Sharpshooter is a highly active and mobile insect, known primarily for its role as a "sharpshooter"—a name derived from its habit of forcibly ejecting droplets of excess fluid, known as honeydew, from its rear with an audible flick. These insects are xylem-feeders, meaning they tap into the plant's water-conducting tissue. Because xylem fluid is nutrient-poor, the sharpshooter must consume vast quantities of it, sometimes processing hundreds of times its body weight in liquid every day.

In a backyard setting, they are often seen on the stems of plants rather than the leaves. They are wary and have a clever defense mechanism: when they sense a predator (or a curious human) approaching, they quickly scoot to the opposite side of the stem to remain out of sight. While they do not bite or sting humans, they are considered a significant agricultural pest because they can spread the bacterium Xylella fastidiosa, which causes various plant diseases.

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Camera Tips

Capturing the Glassy-winged Sharpshooter on camera requires a focus on micro-habitats. Because of their small size, a standard trail camera may struggle unless it has a macro lens or a very short minimum focal distance. Position your camera near known host plants such as citrus trees, grapevines, or crepe myrtles. Look for the "white wash" on leaves—dried excrement that looks like white powder—which indicates heavy sharpshooter activity nearby.

Since these insects are sensitive to movement, mount your camera securely and use a high-sensitivity motion trigger if the software allows. They are most active during the warmest parts of the day when sap flow in plants is high. Setting your camera to record short video clips rather than still photos is often more rewarding, as you might capture their unique "flicking" behavior or their rapid side-stepping movement around a branch.

Lighting is crucial for showing off their namesake feature. Try to angle your camera so that the sun is behind or to the side of the insect; this backlighting will make their transparent, glassy wings glow against the darker background of the plant stem. In the peak of summer, you may even capture the "rain" effect of their liquid waste if you record at a high frame rate against a dark, shaded background.

Similar Species

Species that look similar or are commonly confused with Glassy-winged Sharpshooter.

Smoke-tree Sharpshooter

Slightly smaller with more reddish-orange markings on the head and a distinct wavy line pattern rather than ivory spots.

Blue-green Sharpshooter

Significantly smaller and bright turquoise or green, lacking the brown 'glassy' appearance and large size.

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Frequently Asked Questions

They are diurnal insects, meaning they are most active during the day. You will typically see them moving and feeding most vigorously during the warmest hours, from mid-morning to late afternoon, when the sun is high.

While they are considered pests in many areas, they are naturally attracted to woody host plants like citrus, hibiscus, sunflowers, and grapevines. Maintaining a well-watered garden ensures the plants have the high xylem pressure these insects prefer for feeding.

They feed exclusively on xylem sap. Unlike many other insects that eat leaves or fruit, they use their needle-like mouthparts to pierce stems and drink the water and minerals moving through the plant.

Yes, they are very common in suburban environments, especially in California and the Southeast US. They thrive in residential gardens where a variety of ornamental plants and fruit trees provide a year-round food source.

The Glassy-winged Sharpshooter is much larger (up to 14mm) than most other leafhoppers. It can be distinguished from the Smoke-tree Sharpshooter by its darker coloration and the specific ivory-colored speckling on its head, which is absent or different in other species.

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