EphemeropteraMetretopodidae – Cleftfooted Minnow Mayflies2 data sources

Siphloplecton simile

This record describes Siphloplecton simile (species). Recorded family: Metretopodidae. Recorded order: Ephemeroptera.

Identification and Appearance

Siphloplecton simile - Siphloplecton simile
Contributed by Lloyd Gonzales

Classification

Kingdom
Animalia
Phylum
Arthropoda
Class
Insecta
Order
Ephemeroptera (Mayflies)
Suborder
Pisciforma
Family
Metretopodidae (Cleftfooted Minnow Mayflies)
Genus
Siphloplecton

Imported taxonomy record. Source availability varies; see the source references and editorial policy below.

Habitat and Range

Geographic Range

Southeastern US

Seasonal Activity

typically emerges in early spring

Additional species information

Species notes from the sources

Etymology: Berner did not explain the name simile in his original 1978 description. It means "like" or "similar," presumably a reference to its resemblance to S. basale . (He began the description of simile with a comparison to that species.)

About Mayflies: the wider group

Order-level background for Ephemeroptera, the group containing Siphloplecton simile. Species-specific details appear above.

Group overview

Ephemeroptera (mayflies) includes ~3,500 described species. Adult mayflies are famous for their extraordinarily short lifespans - some species live as adults for only 5 minutes to 24 hours, the shortest adult lifespan of any insect.

Ecological role of the group

Mayfly nymphs spend 1-2 years developing in freshwater before emerging as adults. They are key bioindicators - their presence indicates clean, well-oxygenated water. They are also a primary food source for freshwater fish.

Economic and practical significance of the group

Mayfly hatches are so massive they appear on weather radar - a 2014 Mississippi River hatch near La Crosse, Wisconsin was tracked by the National Weather Service. Mass emergences can cause slippery road conditions and traffic hazards.

Recorded sources for this group: National Weather Service, EPA bioassessment protocols. Imported estimates may describe particular regions or reporting periods.

Explore Ephemeroptera families and species →

Frequently Asked Questions About Siphloplecton simile

How big is Siphloplecton simile?

10.7 - 12.6mm (male paratypes), 10.4 - 11.9mm (female paratypes, though the female allotype was given as 12.5mm)

Where is Siphloplecton simile found?

Range: Southeastern US

When is Siphloplecton simile active?

Siphloplecton simile: seasonal activity - typically emerges in early spring.

How we use and review source data. Source count does not imply independent verification.

Photo credits: Contributed by Lloyd Gonzales. Contributors retain copyright over their individual contributions.