Mallota posticata
(Fabricius, 1805)
Hairy-eyed Bee-mimic Fly
Mallota posticata is a ( Syrphidae) known for its . The is documented in Illinois and broader North America, with developing in water-filled tree holes. exhibit on leaves and serve as .
Pronunciation
How to pronounce Mallota posticata: //məˈloʊtə poʊstɪˈkɑtə//
These audio files are automatically generated. While they are not always 100% accurate, they are a good starting point.
Identification
Identified as a mimic. Distinguished from similar by its pattern and association with the Mallota, which is characterized by inhabiting tree holes rather than other aquatic environments.
Images
Habitat
found in woodland edges and areas with touch-me-nots (jewelweed) where they bask on leaves. develop in water that collects in rotting holes in trees.
Distribution
Recorded in Illinois (National Trail Rest Area, Altamont) and present in North collections. Documented in the Illinois Survey collection with digitized specimens contributing to range data.
Seasonality
Observed in mid-May in Illinois, suggesting spring activity period.
Life Cycle
are aquatic, living in water-filled tree holes. occurs on dry land. with , larval, pupal, and stages.
Behavior
groom on leaves, exhibiting contorted body positions during . Mimics as a defensive strategy against .
Ecological Role
function as . contribute to in aquatic microhabitats within tree cavities.
Human Relevance
Subject of entomological research and specimen collection. Digitization of specimens has contributed to understanding range changes and needs for hover in Illinois.
Similar Taxa
- Somula decoraAnother mimic, but S. decora is larger, roughly -sized, and marked with golden on black, likely mimicking scoliid or yellowjackets rather than .
- Sphecomyia vittataA more extreme yellowjacket mimic with longer, thicker and matching yellowjackets; M. posticata targets instead.
- Laphria spp. () that also mimic , but belong to a different with predatory rather than .
More Details
Mimicry Type
of (), where the harmless gains protection from that avoid stinging .
Research Significance
Specimens from the Illinois Survey contributed to a 2023 study on century-long changes in hover distributions, highlighting the value of museum collections for assessment.