Silphini

Latreille, 1806

carrion beetles

Genus Guides

9

Silphini is a tribe of large carrion beetles within the rove beetle Staphylinidae, Silphinae. Members are worldwide distributed and characterized by their association with decomposing animal matter. The tribe comprises approximately 114 described across 12 extant , including well-known genera such as Silpha, Thanatophilus, and Necrophila. Recent phylogenetic studies have revealed complex relationships within the tribe, with evidence that some historically recognized genera may render Silpha .

Silphini by (c) Katja Schulz, some rights reserved (CC BY). Used under a CC-BY license.Silphini by (c) Katja Schulz, some rights reserved (CC BY). Used under a CC-BY license.Silphini by (c) Katja Schulz, some rights reserved (CC BY). Used under a CC-BY license.

Pronunciation

How to pronounce Silphini: //silˈfiːni//

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Identification

Silphini are distinguished from the related tribe Nicrophorini (burying beetles) by their lack of parental care and different body proportions. Members are generally larger and more robust than typical staphylinid beetles, with that may be abbreviated but usually cover most of the . The tribe exhibits considerable morphological diversity across , with some genera showing flattened body forms (Ablattaria) and others more cylindrical profiles (Thanatophilus).

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Distribution

Worldwide distributed across multiple biogeographic regions including the Australian, Neotropical, Oriental, Palearctic, Nearctic, and Afrotropical regions. Individual show distinct regional patterns: Heterotemna is restricted to the Canary Islands and Madeira; Dendroxena occurs in the Palearctic; Oxelytrum is Neotropical.

Diet

Carrion feeders; and larvae consume decomposing animal matter. Some show specialized feeding habits: Dendroxena have been observed feeding on dry bones and desiccated carcasses rather than fresh carrion.

Ecological Role

Decomposers that accelerate breakdown of animal carcasses. Unlike Nicrophorini, Silphini do not exhibit parental care or burial ; and larvae feed directly on exposed carrion.

Human Relevance

Some are used in to estimate postmortem intervals based on their predictable of human remains. Thanatophilus species in particular have been documented in forensic casework.

Similar Taxa

  • NicrophoriniAlso carrion-associated beetles within Silphinae, but distinguished by parental care , burial of small carcasses, and distinct chemical communication systems including stridulation.

More Details

Taxonomic instability

Recent molecular phylogenetic studies have revealed that the Silpha is with respect to Heterotemna and possibly Aclypea. Heterotemna has been synonymized with Silpha, but the status of Aclypea remains unresolved pending further study.

Fossil record

The tribe includes two extinct : †Allopliosilpha and †Pliosilpha, both described from Miocene deposits.

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Sources and further reading