Mangora placida
(Hentz, 1847)
Tuft-legged Orbweaver
Mangora placida is a small -weaving in the Araneidae, commonly known as the Tuft-legged Orbweaver. It is found across North America, with records from Canada through the United States. The is notable for the tufted projections on its legs, a distinctive feature referenced in its . and build vertical orb webs to capture flying .



Pronunciation
How to pronounce Mangora placida: /mæŋˈɡɔːrə ˈplæsɪdə/
These audio files are automatically generated. While they are not always 100% accurate, they are a good starting point.
Identification
Mangora placida can be distinguished from other Mangora by the presence of distinct tuft-like projections on the legs. It builds a vertical web, which separates it from the Orchard Orbweaver (Leucauge venusta) that constructs horizontal orb webs. The species may be confused with other small Araneidae, but the leg tufts are diagnostic.
Images
Habitat
Found in a variety of including woodlands, gardens, and residential areas. Builds webs in vegetation, with often constructing webs closer to the ground and placing them higher in shrubs and bushes.
Distribution
North America, including Canada (Alberta, Manitoba) and the United States. Records extend across much of the continent.
Seasonality
are most abundant in late spring and early summer. Individuals overwinter as sub-adults, hiding in leaf litter and under loose bark.
Diet
Feeds on flying captured in its web, including small , , and other aerial .
Life Cycle
Overwinters as sub-. Matures in spring and early summer, with adults present during this period. sacs are produced during the adult stage.
Behavior
Constructs and maintains a vertical web. When threatened, drops from the web to the ground and seeks in leaf litter. Web is typically removed and rebuilt regularly.
Ecological Role
of small flying ; contributes to regulation of of aerial in its .
Human Relevance
Generally harmless to humans. Occasionally encountered in gardens and residential areas where its webs may be noticed. Not considered a .
Similar Taxa
- Leucauge venusta (Orchard Orbweaver)Builds horizontal webs rather than vertical ones; lacks leg tufts; has more elaborate color pattern with green legs.
- Other Mangora speciesMay be distinguished by the presence or absence of leg tufts and specific abdominal patterning.
Sources and further reading
- BugGuide
- Wikipedia
- GBIF taxonomy match
- iNaturalist taxon
- NCBI Taxonomy
- Catalogue of Life
- sectiliclava_placidae_myartseva_et_al._holotype_female_ucrc_ent_125325_lateral.jpg | Entomology Research Museum
- Primary Type List | Entomology Research Museum
- Publications | Entomology Research Museum
- Bug Eric: Grand Finale
- Bug Eric: 2024
- Bug Eric: Spider Sunday: Orchard Orbweaver