Anthracopteryx
Horn, 1891
Species Guides
1Anthracopteryx is a monobasic of click beetles ( Elateridae) to the Front Ranges of Colorado, USA. The genus contains a single , A. hiemalis, which is notable for its winter activity period—unusual among click beetles. The genus was established by Horn in 1891 and remains poorly represented in collections and online databases.
Pronunciation
How to pronounce Anthracopteryx: //ænˌθrækoʊˈptɛrɪks//
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Identification
The sole , A. hiemalis, is a small click beetle measuring approximately 6–7 mm. Distinguishing features from other Elateridae likely include its diminutive size, winter timing, and restricted geographic distribution in the Colorado Front Ranges. Specific morphological diagnostic characters for the are not documented in available sources.
Habitat
Found in the Front Ranges of Colorado, from Laramie south to Westcliffe. Observations indicate activity on warm winter days, suggesting for cold conditions and possible association with open, exposed surfaces such as sidewalks in residential or natural edge .
Distribution
to the Front Ranges of Colorado, USA. Documented localities span from Laramie southward to Westcliffe.
Seasonality
are active during winter, with observations on warm winter days in January. This represents an unusual seasonal pattern for Elateridae, which are predominantly spring- to summer-active.
Behavior
have been observed on exposed surfaces during warm winter conditions. The winter activity pattern is exceptional within the and suggests cold-hardiness or behavioral strategies.
Similar Taxa
- Other Elateridae generaMost click beetles are active in spring and summer; winter activity combined with small size and Colorado Front Range distribution distinguishes Anthracopteryx from sympatric .
More Details
Taxonomic rarity
Anthracopteryx is monobasic, containing only A. hiemalis. The was absent from Bugguide.net as of 2017, indicating substantial underdocumentation despite its restricted range.
Collection history
A with expertise in click beetles had never collected this personally, despite its being the only member of its and occurring within a well-studied region.