Aulonium
Erichson, 1845
Species Guides
4Aulonium is a of cylindrical bark beetles in the Zopheridae, Colydiinae. Members are of other bark beetles and have been studied for their potential role in . The genus contains approximately 17 described distributed across multiple continents. At least one species, Aulonium ruficorne, has been documented as a specialized predator within bark beetle galleries.
Pronunciation
How to pronounce Aulonium: /ɔˈloʊniəm/
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Identification
Cylindrical body form typical of Colydiinae bark beetles. Distinguished from other zopherid by specific antennal and pronotal characteristics, though precise diagnostic features require examination of and specialized keys.
Images
Habitat
Associated with bark beetle galleries in dead or dying trees. Inhabits woody substrates where prey bark beetles are active.
Distribution
Records from Denmark, Norway, and Sweden (GBIF). Additional described from North America (LeConte, 1859–1866), South America (Dajoz, 1980), and other regions. Global distribution likely reflects widespread occurrence in temperate and tropical forest systems where bark beetles are present.
Diet
Predatory on bark beetles. Aulonium ruficorne specifically preys upon bark beetles within their galleries.
Behavior
Predatory within bark beetle galleries. Has been observed as a of economically significant bark beetle pests.
Ecological Role
of bark beetles; potential agent for bark beetle in forest .
Human Relevance
Investigated as a agent for bark beetle pests that damage timber and forest resources.
Similar Taxa
- Other Colydiinae generaSimilar cylindrical body form and bark-associated ; requires detailed morphological examination to distinguish.
- Bark beetles (Scolytinae)Shares in bark and wood but distinguished by predatory rather than phytophagous habits; Aulonium are , not tree-killers.
More Details
Taxonomic history
Formerly placed in , now treated as Colydiinae within Zopheridae based on molecular and morphological phylogenetic studies.
Research focus
Aulonium ruficorne has been the subject of dedicated biological study due to its predatory habits, but most remain poorly known.