Lophacris Scudder, 1869 Titanacris is a genus of large grasshoppers in the subfamily Romaleinae and tribe Tropidacrini.

[2][3] Adult males are generally 5–9 cm (2.0–3.5 in) long and females 7–13 cm (2.8–5.1 in) long, but they are quite poorly known because they live high in the canopy of tropical forests, they are excellent fliers (not easily caught), and only T. albipes and T. velazquezii appear to regularly be attracted to artificial light at night.

[3] They are mostly green, but in flight they have conspicuously violet, red, orange-red or pink wings; their wings lack the dark rear edge and spotting seen in the closely related Tropidacris.

[3] The shape of the female's ovipositor indicates that the eggs are deposited in the soil, similar to the better-known Tropidacris.

[3] Titanacris and the closely related to Tropidacris form the tribe Tropidacrini, but the latter genus is generally better known.