Question Mark Roach

Therea olegrandjeani

Therea • Corydiidae

intermediate

Overview

A close cousin of the domino roach with a bold question-mark / comma pattern on the pronotum — another prized ornamental display species. Care is effectively identical to the domino: burrowing fossorial nymphs need a few inches of coco/sand substrate, adults are fast surface runners, and the colony breeds slowly. OMNIVORE feeding (chow + produce). Harmless.

Husbandry Requirements

Temperature & Humidity

Temperature

75-88°F

Humidity

50-65%

Enclosure Sizes

Adult:small bin for a colony

Substrate

Type:coco fiber / sand mix; nymphs burrow

Depth:2-3 inches

Feeding Schedule

Adult:roach chow + produce; light moisture gradient

Prey size: n/a (omnivore)

Quick Stats

Type

terrestrial

Adult Size

0.8-1 inch

Growth Rate

slow

Native Region

Southern India

Temperament

active, skittish

Behavior

Webbing—

BurrowingNo

Water DishOptional

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