Giant Cave Cockroach

Blaberus giganteus

The giant cave cockroach (Blaberus giganteus) is a large tropical cockroach from Central and South America, associated with caves, hollow trees, and humid forest shelters. It has a broad flattened body, long wings, and mottled tan to brown coloring that blends with bark and rock. Unlike household pest cockroaches, it is usually kept as a display invertebrate or feeder colony species, feeding on decaying plant material, fruit, and other organic matter.

Captive colonies need warm humid housing, good ventilation, bark or egg-crate hides, and secure lids because nymphs and adults can squeeze through gaps. Food can include vegetables, fruit, leaf litter, grains, and a protein source offered without letting mold build up. They are live-bearing, so colonies can expand steadily when conditions are good. Keepers manage moisture, mites, frass buildup, and escapes, and they should avoid releasing unwanted roaches outdoors. Public displays often use red light or darkened exhibits because the animals hide in bright conditions.