Sarcophagidae
Definition
The flesh fly family. Grey or black with longitudinal thoracic stripes and a chequered abdomen. Larviparous (deposit live larvae), so colonisation appears to lack an egg stage.
- Reproduction method
- Larviparous (deposit live larvae, not eggs)
- Key visual features
- Grey or black body with longitudinal thoracic stripes and chequered abdomen
- Common genus in forensics
- Sarcophaga
Common questions
What is the main difference between flesh flies and blow flies?+
Flesh flies (Sarcophagidae) deposit live larvae directly onto a body rather than laying eggs first. This means colonisation appears to start right away without an egg stage. Blow flies, by contrast, lay eggs that must hatch before larvae appear.
How can you identify a flesh fly?+
Look for grey or black colouring with longitudinal stripes running along the thorax. The abdomen has a chequered or checkered pattern. Sarcophaga is the genus most commonly encountered in forensic cases.
Why are flesh flies important in forensic entomology?+
Their larviparous reproduction means colonisation appears to lack an egg stage, which is relevant when estimating the time since death and understanding insect activity patterns at a crime scene.
Related terms
- Calliphoridae
- The blowfly family: metallic-coloured flies that are typically the earliest colonisers of exposed remains. Forensically important genera include Calliphora, Lucilia, Chrysomya, and...
- Muscidae
- A large family including house flies (Musca domestica) and stable flies (Stomoxys calcitrans). Non-metallic, typically dull grey or brown. Secondary or later...
- Accumulated Degree Days (ADD)
- The sum of daily mean temperatures above a threshold (usually 0 °C) over a period of interest. Used as a measure of...
- Blowfly
- Common name for Calliphoridae. The female lays eggs in moist orifices (mouth, nose, eyes, wounds); eggs hatch in 8 to 24 hours...
- Carrion Succession
- The predictable, roughly sequential replacement of insect communities on a decomposing body, driven by changing chemical substrate. Not a strict relay with...
- Flesh Fly
- Common name for Sarcophagidae. Unlike blowflies, the female deposits first-instar larvae directly, so casework often shows live maggots without an egg stage...
- Forensic Entomology
- The application of insect biology to legal investigations, most commonly using the developmental stage and species of insects colonising human remains to...
- Larval Instar
- One of three larval stages (L1, L2, L3) separated by moults. Each instar has distinctive mouth-hook and posterior spiracle morphology that allows...
- Larviposition
- The act of depositing live larvae rather than eggs. Flesh flies are larviparous: the egg hatches internally, and a first instar larva...
- Oviposition
- The act of laying eggs. Blow flies oviposit directly onto remains, choosing moist, sheltered sites such as body orifices and wounds. Temperature...
- Post-Mortem Interval (PMI)
- The time elapsed between death and discovery or examination of remains. PMI estimation draws on multiple disciplines: soft tissue decomposition stage, insect...
- Sarconecrophagous
- Insects that feed directly on the corpse tissue, such as blowflies and flesh flies. The primary first-wave colonisers of carrion.
Explained in these topics
- Flies of Forensic Importance: Blow Flies and Flesh FliesThe flesh fly family. Grey or black with longitudinal thoracic stripes and a chequered abdomen. Larviparous (deposit live larvae), so colonisation appears to l...
- Forensic Entomology: Insects of Forensic Importance and ApplicationsFlesh flies. Larviparous (deposit live larvae rather than eggs), grey with black thoracic stripes and a chequered abdomen. Sarcophaga is the genus to name in M...