Specific Leafhopper Species of Note:

• Apple Leafhopper (Empoasca maligna) - produces white flecking injuries
• Aster Leafhopper, aka Six-spotted Leafhopper (Macrosteles quadrilineatus)
• Ceratagallia abrupta 
• Eastern Grape Leafhopper  (Erythroneura comes) - very similar to the Western Grape Leafhopper relegated to the eastern US
• Edwardsiana australis - occurs on mountain ash
• Edwardsiana commisuralis - common western species; injuries similar to rose leafhopper on dogwood & alder
• Edwardsiana hippocastani - occurs on elm
• Erythroneura gleditsia - feeds on black locust, Aesculus species and hawthorn
• Erythroneura lawsoniana - feeds on sycamore
• Intermountain Leafhopper (Empoasca filamenta) - produces white flecking injuries to potato & bean plants, but do not cause hopperburn.
• Maple Leafhopper (Alebra albostriella) - produces stippling on several trees and shrubs, including various maples, American elm, basswood, oak, beech, hickory, hawthorn and sumac; produces only one generation per year; populations peak around late spring in the East and midsummer in central California; overwintering eggs are inserted into twigs.
• Mountain Leafhopper (Colladonus montanus)
• Potato Leafhoppers, Empoasca fabae, (don't know if they mine were these specific buggers) are migratory and cause hopperburn by injecting a toxin as they feed. They don't just attack potatoes, though. Beans and other legumes, along with raspberries, young birch, maple and apple trees, are common hosts. They are pale green, roughly 1/8" long, typical leafhoppers. Distinction between this leafhopper & other leafhoppers can not be easily made, except by experts. Cold winters will kill them off, so they spend the cold months in the south, migrating northward in May or early June. My books say these are restricted to eastern North America, "only infrequently being found as far west as Wyoming and Colorado", but I am pretty certain that hopperburn is what killed my potatoes here in Redding, CA. I took leaf samples down to our agricultural extension office and they identified leafhoppers to be my problem...not specifically the Potato Leafhopper, though. Hopperburn symptoms are listed under Symptoms.
• Privet Leafhopper (Fieberiella florii)
• Rose Leafhoppers (Edwardsiana rosae) leave a coarse, whitish mottling on the leaves' upper surfaces. For some reason (maybe because they are more protected from wind & rain) roses that are against a wall are more heavily infested. They feed on the mesophyll. Damage occurs early in the season, then the leafhoppers go off to their summer hots. They lay their fall-time eggs in the stems and canes and occasionally these wounds let other pathogens in to harm the rose. The eggs survive winter and develop into pimple-like swellings. Eggs hatch in early spring, then the nymphs move to the underside of the foliage. All nymphal stages can be completed in 2-3 weeks. Summer-time eggs are laid in large veins and petioles of leaves. Two additional generations will complete in the summer. leading to 3 waves of peak nymph numbers: early June, late July/early August, and mid-September. These leafhoppers are more of a pale yellow than a green, and go all the way to creamy white. the wingless nymphs also exhibit reddish eyes, which turn to white as they mature. Dark spots on the back of the nymph is how to tell these apart from the apple leafhopper. Unlike other leafhopper nymphs, these ones cannot move sideways.These leafhoppers also love apple, dogwood, oak, hawthorn, poplar, elm and maple. They overwinter on Rosa & Rubus  species.
• Scaphytopius acutus
• Scaphytopius irroratus
• Six-spotted Leafhopper, aka Aster Leafhopper (Macrosteles quadrilineatus)
• Southern Garden Leafhopper (Empoasca solana) - produces white flecking injuries to potato. lettuce & bean plants in southern states, but do not cause hopperburn.
• Threebanded Leafhopper (Erythroneura tricincta) - may be found on grape, Virginia creeper, and apple in the east
• Variegated Leafhopper (Erythroneura variabilis) - grape leafhopper, very similar to the Western Grape Leafhopper, in Southern California
• Virginiacreeper Leafhopper (Erythroneura ziczac) - common in the high Plains and Rocky Mountain regions where it likes to eat grape, Virginia Creeper, elm, and Boston Ivy.
• Western Grape Leafhopper (Erythroneura vulnerata) - important pest of vineyards in western states; pests overwinter as adults under garden debris, near previously infested plants; adults emerge when temperatures hit the mid-60s and fly to vines to feed as new growth emerges; eggs are laid after several weeks just underneath the leaf surface. The eggs appear as a small bubble when observed closely. Eggs hatch in 1-2 weeks; nymphs start feeding on the mesophyll of the cells on the lower leaf surface; mature in about 3 weeks. 3-5 generations can be produced annually, depending on location...which means they can be present on plants continuously, as long as leaves remain. In the fall the adults disperse to get under cover for the winter.
• Western Potato Leafhopper (Empoasca abrupta) - produces white flecking injuries to potato & bean plants, but do not cause hopperburn.
• White Apple Leafhopper (Typhlocyba pomaria) - looks identical to the rose leafhopper; whitish flecking/stipling on leaves; apple, cherry, peach, prune & hawthorns affected; nymphs are usually translucent white, occasionally yellow; two generations are produced, but overlap so adults are almost always present from late May through October; major pest of apple orchards in North America; damage plants by removing chlorophyll and excreting dark droplets that spot fruit
• Ziczac Leafhopper (Erythroneura ziczac)

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