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Cicadellidae

### Identification These "wedge-shaped" jewels are masters of both disguise and vibrant display. Typically ranging from 2mm to 15mm, a leafhopper’s body tapers sharply toward the rear, giving it a streamlined, aerodynamic silhouette. The definitive field mark is the row of fine, hair-like spines lining the entire length of the hind tibiae (lower legs)—a feature that distinguishes them from the similar-looking froghoppers. While many are cryptically colored in mottled browns to mimic dead leaves, others, like the Red-banded Leafhopper (*Graphocephala coccinea*), sport electric blue and scarlet stripes that look like neon signage against a green leaf.

### Habitat & Range Leafhoppers are truly cosmopolitan, occupying almost every terrestrial ecosystem on Earth where vascular plants grow. You will find them from sea-level salt marshes to high alpine meadows. Because many species are host-specific, your best bet for finding a particular variety is to identify the host plant first; for instance, the Grape Leafhopper will rarely be found far from a vineyard or wild vitis.

### Behaviour Observe a leafhopper on a stem and you’ll likely witness its "sidestep"—a quick, lateral crab-walk to the opposite side of the branch to keep the plant between itself and your lens. They are incredibly skittish; if further provoked, they utilize a "catapult" mechanism in their hind legs to vanish in a high-velocity blur. Interestingly, they communicate via substrate-borne vibrations, "singing" through the stems of plants to find mates in a hidden acoustic world.

### Diet Equipped with specialized piercing-sucking mouthparts (stylets), leafhoppers are obligate sap-feeders. They tap into the plant’s vascular system—specifically the phloem or xylem—to drink nutrient-rich fluids. Because sap is mostly water, they must process enormous volumes, frequently egesting droplets of sugary "honeydew" from their rear.

### Fascinating Fact Leafhoppers produce brochosomes—microscopic, soccer-ball-shaped granules of wax. They coat their bodies and even their eggs with this "magic dust," which acts as a powerful water-repellent and prevents them from accidentally getting stuck in their own sticky honeydew!

AI-generated info may be inaccurate. Not a safety guide.