Therea olegrandjeani (question-mark cockroach) 6ctThis is a medium sized crepuscular cockroach found in dry forest habitats in Southern India. They are a classic species in the roach hobby due to their attractive appearance when mature. Mature specimens are smaller in size than T. bernhardti. Like other species in this genus, nymphs of this species spend the majority of their time burrowed in the substrate, but the adults are commonly surface active. Cultures will consist of nymph animals.