FRENCH GUIANA COCKROACH (Eublaberus posticus “French Guiana”)

The French Guiana Cockroach (Eublaberus posticus “French Guiana”) is a large, hardy species of burrowing cockroach admired for its subtle beauty and exceptional usefulness in captive colonies. This regional form of Eublaberus posticus is named after French Guiana, where it originates, and is well adapted to warm, humid tropical environments.

Adults typically reach around 4–6 cm (1.5–2.5 inches) in length and display a smooth, glossy appearance. Their coloration is generally dark brown to nearly black, often with lighter tan or amber tones along the pronotum and wing edges. While less boldly marked than some related species, their clean, uniform look gives them a sleek and attractive appearance.

Like other members of the Eublaberus genus, the French Guiana Cockroach is a dedicated burrower. It thrives in deep, slightly moist substrate where it can dig and hide, making it feel secure. These roaches are most active at night and prefer temperatures between 26–32°C (79–90°F) with moderate to high humidity.

This species is particularly valued for its rapid growth and high reproductive output. Females produce oothecae that are retained internally until the young hatch, resulting in a steady supply of nymphs. The nymphs grow quickly and are excellent feeders, readily consuming fruits, vegetables, grains, and protein-rich foods.

French Guiana Cockroaches are not capable of climbing smooth surfaces and do not fly, which makes them easy to manage in captivity. They are fast and somewhat skittish but entirely non-aggressive, relying on speed and burrowing to avoid disturbance.

Due to their durability, nutritional value, and ease of breeding, the French Guiana Cockroach (Eublaberus posticus “French Guiana”) is widely used as a feeder insect, while also being appreciated by hobbyists as a reliable and low-maintenance display species.