The most common green bug with clear wings is the green lacewing, a delicate, pale green insect about 12 to 20 mm long with large transparent wings laced with a fine network of veins. But several other insects fit this description too, from tiny winged aphids to large buzzing cicadas. Here’s how to figure out exactly what you’re looking at.
Green Lacewings: The Most Likely Match
If the bug is slender, pale green, and has oversized wings that look almost like they’re made of glass with a web of thin lines running through them, you’re almost certainly looking at a green lacewing. These insects have two pairs of large, transparent wings that are slightly tinted green and extend well past the body. Up close, you’ll notice bright golden eyes, which is one of the easiest ways to confirm the identification. The body is soft and narrow, roughly the length of a penny.
Green lacewings are most active in the evening and at night, so you’ll often spot them fluttering around porch lights or window screens after dark. Their flight is slow and wobbly, almost moth-like, which makes them easy to distinguish from faster-flying insects. During the day they tend to rest on plants, where their green color blends in with the foliage.
One unmistakable sign that lacewings are living in your garden: their eggs. Female lacewings lay small green-to-white capsules that each dangle from a hair-thin thread about a quarter inch long, usually on the underside of leaves. These stalked eggs look almost like tiny lollipops and are unlike anything else you’ll find on a plant. They’re laid singly or in small clusters.
Why Lacewings Are Worth Keeping Around
Green lacewings are one of the most effective beneficial insects in a garden. The adults mostly feed on nectar and pollen, but their larvae are voracious predators of aphids, mites, whiteflies, and other soft-bodied pests. The larvae look nothing like the adults. They’re small (growing up to about 6 to 8 mm), grayish-brown, and shaped like tiny alligators with curved, pincer-like jaws. Gardeners sometimes call them “aphid lions” because of their appetite.
Lacewings are valued enough that they’re commercially raised and sold as biological pest control. If you find them in your yard, they’re working in your favor.
Winged Aphids
If the green bug with clear wings is very small, roughly 1/8 inch (about 3 mm), and you’re finding it on or near plants, it could be a winged aphid. Most aphids are wingless, but when a colony gets overcrowded or their food source runs low, some females develop wings and fly off to colonize new plants. These winged forms have transparent wings and soft, pear-shaped green bodies.
The giveaway for aphids is a pair of small tube-like structures called cornicles sticking out from the rear of the abdomen, almost like tiny tailpipes. You’ll usually see them in groups rather than alone. If you flip over a leaf and find dozens of small green bugs clustered together, with a few winged individuals mixed in, those are aphids. Unlike lacewings, these are pests that feed on plant sap and can damage your garden.
Green Leafhoppers
Leafhoppers are small, wedge-shaped insects, typically less than a quarter inch long, that come in various shades of green. Their wings fold flat along the body and can appear translucent or partly clear, especially at the tips. The fastest way to identify a leafhopper is by its behavior: disturb one and it will jump sideways or spring away instantly, almost too fast to track. They also walk with a distinctive sideways scuttle.
Some larger species, called sharpshooters, can reach about half an inch. Leafhoppers feed on plant juices and are common on vegetable plants, ornamentals, and grasses throughout the growing season.
Dog-Day Cicadas
If the bug is large, about 1.5 inches long, with a stout body, wide-set eyes, and clear wings held over the back like a tent, you’re looking at a dog-day cicada. These annual cicadas have greenish bodies with black markings and wings with prominent veins. They show up in mid to late summer, and you’ve probably heard them before you’ve seen them: they produce the loud, droning buzz that fills trees on hot afternoons.
Cicadas are much bulkier than lacewings and have a distinctly wedge-shaped body with a wide, blunt head. Their clear wings are larger and stiffer than a lacewing’s delicate, vein-laced wings. Despite their size and noise, cicadas don’t bite or sting and cause minimal damage to plants.
Tree Crickets
Tree crickets are slender, pale green insects about 9 to 12 mm long that live on shrubs and in tree canopies. Males have broad, flat, paddle-shaped forewings that appear translucent, while females have narrower wings wrapped close to the body. Their color ranges from whitish to pale green, and they have long, thread-like antennae that can be as long as or longer than the body.
You’re more likely to hear a tree cricket than see one. The snowy tree cricket is famous for its rhythmic chirping on warm evenings, and you can roughly estimate the temperature in Fahrenheit by counting the number of chirps in 13 seconds and adding 40. If you do spot one, its long, narrow shape and extremely thin body set it apart from the broader-winged lacewing.
Quick Comparison
- Green lacewing: 12 to 20 mm, golden eyes, large veined wings, slow fluttering flight at night
- Winged aphid: About 3 mm, pear-shaped, cornicles on abdomen, found in clusters on plants
- Green leafhopper: Under 6 mm, wedge-shaped, jumps sideways when disturbed
- Dog-day cicada: About 1.5 inches, stout body with black markings, loud buzzing call
- Tree cricket: 9 to 12 mm, very slender, long antennae, rhythmic evening chirping
Size is the single most useful sorting tool. If the bug fits on a pinhead, think aphid. If it’s penny-sized and delicate with golden eyes, it’s a lacewing. If it’s large, loud, and chunky, it’s a cicada. Behavior fills in the rest: jumpers are leafhoppers, slow flutterers around lights are lacewings, and evening singers are tree crickets.