Lacronia is a genus of South American harvestmen, which includes five Brazilian species.

Strand proposed the valid replacement name Lacronia,[3] which was ignored by most subsequent authors and unearthed only 60 years later.

[4] Lacronia ceci is the first species of the genus to be found in highlands away from the coast.

Individuals of both sexes of Lacronia ceci were found inside bamboo (Guadua taguara) hollows or in immediately surrounding areas.

Lacronia camboriu and L. ricardoi were found inside bromeliads, suggesting that the species of this genus are related to phytotelmata.