Zophobas atratus

Zophobas morio larva

Zophobas atratus, commonly known as the giant mealworm or superworm, is a species of darkling beetle. It is often confused with Zophobas morio, but they are distinct species. Zophobas atratus is notable for its large larvae, which are used extensively as feed for reptiles, birds, and other insectivorous animals.

Description

Zophobas atratus undergoes complete metamorphosis, which includes the stages of egg, larva, pupa, and adult. The larvae are large, reaching lengths of up to 60 mm, and are characterized by their cylindrical, segmented bodies. They are typically a creamy white color with a hard exoskeleton.

The adult beetles are black and have a hard, shiny exoskeleton. They can grow up to 20 mm in length. The adults are less commonly used as feed due to their harder exoskeleton, which is less digestible for many animals.

Habitat and Distribution

Zophobas atratus is native to Central and South America but has been introduced to other regions due to its popularity in the pet trade. It thrives in warm, humid environments and is often found in decaying wood or leaf litter in the wild.

Diet

The larvae of Zophobas atratus are detritivores, feeding on decaying organic matter. In captivity, they are often fed a diet of bran, oats, and fresh vegetables. The adults are also detritivores but can consume a wider range of organic materials.

Reproduction

Reproduction in Zophobas atratus involves the female laying eggs in a suitable substrate. The eggs hatch into larvae, which then undergo several molts before pupating. The pupal stage lasts for about 1-2 weeks, after which the adult beetle emerges.

Uses

Zophobas morio adult beetle

The larvae of Zophobas atratus are widely used as live feed for pets such as reptiles, amphibians, and birds. They are favored for their high protein content and ease of breeding. Additionally, they are sometimes used in scientific research due to their size and ease of care.

Related pages

• Darkling beetle
• Insect metamorphosis
• Insectivore