Ephemeroptera
Definition
Mayflies. Aquatic nymphs of some genera, including Baetis and Ephemerella, have been recovered from submerged remains in Europe and North America. Their presence signals specific water quality and timing conditions.
- Common name
- Mayflies
- Life stage recovered
- Aquatic nymphs
- Example genera
- Baetis, Ephemerella
- Recovered from
- Submerged remains in Europe and North America
Common questions
What does the presence of mayfly nymphs on submerged remains indicate?+
Because different genera require particular water quality and flow conditions, and nymphs develop through a series of instars over a known timeframe, their presence and developmental stage can help narrow both the submersion environment and the minimum time since submersion.
How does aquatic entomology differ from terrestrial forensic entomology in practice?+
Aquatic evidence depends on species-specific water chemistry, temperature, and flow tolerances rather than the ambient-air temperature models used for terrestrial blow fly succession, so aquatic entomologists draw on a different reference dataset and sampling method.
Related terms
- Accumulated Degree Hours (ADH)
- A temperature-corrected measure of developmental time. Calculated by summing (hourly ambient temperature minus the species-specific base temperature threshold) across the period of...
- Aquatic Succession
- The predictable sequence in which aquatic invertebrate species colonise submerged remains, analogous to the terrestrial blowfly succession but driven by different taxa...
- Chironomidae
- Non-biting midges whose blood-red larvae (bloodworms) are among the earliest colonisers of submerged organic matter. Their development rates are temperature-dependent and well...
- Submersion Interval
- The period for which a body was beneath the water surface. Distinct from the post-mortem interval, because the body may have died...
- Trichoptera
- Caddisflies, whose larvae build protective cases from plant material, sand, or other debris. They colonise decomposing organic matter and can help establish...