Platydracus cinnamopterus
(Gravenhorst, 1802)
Cinnamon-winged Rove Beetle
Platydracus cinnamopterus is a large in the , distributed across eastern and central North America. The is characterized by its cinnamon-colored (), which provide the specific epithet 'cinnamopterus' (cinnamon-winged). Like other members of the Platydracus, it is a predatory commonly associated with decaying matter and fungal .


Pronunciation
How to pronounce Platydracus cinnamopterus: //ˌplætɪˈdreɪkəs sɪˌnæməʊpˈtɛrəs//
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Identification
Distinguished from other large Platydracus by the cinnamon- coloration of the . Platydracus maculosus has more distinctly spotted or patterned elytra. Platydracus tomentosus is typically more uniformly dark or black. The specific epithet cinnamopterus directly references the color. Examination of male or other microscopic characters may be necessary for definitive identification in areas where ranges overlap with similar species.
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Habitat
Found in moist, decaying matter including rotting wood, leaf litter, compost, and fungal fruiting bodies. Often associated with hardwood forests and woodland edges. Frequently encountered in such as gardens, parks, and areas with accumulated organic debris.
Distribution
Eastern and central North America: recorded from Canada (Manitoba, New Brunswick, Nova Scotia, Ontario, Quebec) and widespread across the eastern and central United States from Maine to Florida, west to Texas and Nebraska, and north to Minnesota and Wisconsin.
Seasonality
are active primarily from spring through fall, with peak activity during summer months. May be found year-round in suitable microhabitats in southern portions of range.
Diet
Predatory, feeding on other and found in decaying matter. Has been observed preying on and other small insects in mushroom .
Life Cycle
with , , , and stages. Larvae are predatory and develop in the same decaying matter as adults. Detailed information specific to this is limited.
Behavior
Fast-moving and agile, typical of . Capable of but often runs rapidly when disturbed. When threatened, may curve the upward in a -like posture, though this lacks a functional . are attracted to fungal fruiting bodies where they on other .
Ecological Role
in , regulating of other in decaying matter and fungal . Contributes to through its presence in decomposition systems.
Human Relevance
Generally as a of other . Occasionally found in gardens, compost , and similar human-modified . Not considered a . May be encountered by mushroom foragers and sampling fungal habitats.
Similar Taxa
- Platydracus maculosusSimilar large size and preferences, but has distinctly spotted or rather than uniform cinnamon coloration
- Platydracus tomentosusOverlapping distribution and size, but typically darker, more uniformly colored without cinnamon tones
- Tasgius winkleriSimilar size and European expanding in North America, but with different elytral coloration and pattern
More Details
Etymology
The specific epithet cinnamopterus combines Greek 'kinnamomon' (cinnamon) and 'pteron' (), referring to the distinctive cinnamon-colored .
Taxonomic History
Originally described as Staphylinus cinnamopterus by Gravenhorst in 1802, later transferred to the Platydracus.