Numbers
One of two species in the genus.
Size
Female 11 mm, or 14 mm including the horn. Male somewhat smaller.
Habitat
This species lives its entire life cycle on Locust, usually on younger trees. They seem to prefer trees that get some sunshine, avoiding trees in the deep woods. A single tree may host close to 500 individuals.
Food
Nymphs and adults feed by inserting the beak into the twig to take up plant juices.
Life Cycle
Eggs laid near the ground in slits in bark. From hatching to emergence as an adult takes about one month. Larva gradually move up the trunk as they mature.
Remarks
Often protected by ants, who receive "honeydew" from the larvae. Damage to the tree host is practically non-existant.