Common green bottle fly

The common green bottle fly (Lucilia sericata) is a species of fly belonging to the family Calliphoridae, commonly known as blowflies. It is one of the most well-known species of flies due to its distinctive metallic green color and its role in forensic entomology, medicine, and ecology.

Description

The common green bottle fly is characterized by its bright metallic green body, which can sometimes have a blue or coppery tint. The adult flies are typically 10 to 14 mm in length. They have large red compound eyes and clear wings. The larvae, known as maggots, are creamy white and are often found in decaying organic matter.

Distribution and Habitat

Lucilia sericata is found worldwide, particularly in temperate regions. It is commonly found in urban and rural areas, where it thrives in environments rich in decaying organic material. These flies are often seen around garbage dumps, animal carcasses, and feces, where they lay their eggs.

Life Cycle

The life cycle of the common green bottle fly consists of four stages: egg, larva, pupa, and adult. The female fly lays eggs on decaying organic matter, which hatch into larvae within 24 hours. The larvae feed on the decaying material for several days before pupating. The pupal stage lasts about 7 to 14 days, after which the adult fly emerges. The entire life cycle can be completed in as little as two weeks under optimal conditions.

Role in Forensic Entomology

Lucilia sericata is of significant importance in forensic entomology due to its predictable life cycle. By analyzing the development stages of the larvae found on a corpse, forensic scientists can estimate the post-mortem interval (PMI), which is the time elapsed since death. This information can be crucial in criminal investigations.

Medical Uses

The larvae of Lucilia sericata are used in maggot therapy, a medical treatment for non-healing wounds. The maggots are applied to the wound, where they consume dead tissue and secrete substances that promote healing. This method is particularly effective for treating chronic ulcers and infections resistant to antibiotics.

Ecological Importance

As decomposers, common green bottle flies play a vital role in the ecosystem by breaking down dead organic matter. This process recycles nutrients back into the soil, supporting plant growth and maintaining ecological balance.

Also see

• Forensic entomology
• Maggot therapy
• Calliphoridae
• Decomposition