Omosita

Erichson, 1843

Species Guides

3

Omosita is a of sap beetles ( Nitidulidae) erected in 1843. The genus comprises five described distributed across the Holarctic and introduced regions. Omosita species are notable for their association with stored products and carrion, with documented forensic significance due to their presence on human remains. Larvae have been recovered from decomposing human bone and successfully analyzed for human mitochondrial .

Omosita by (c) Victor Engel, some rights reserved (CC BY), uploaded by Victor Engel. Used under a CC-BY license.Omosita by no rights reserved, uploaded by Tomas Pocius. Used under a CC0 license.Omosita nearctica by (c) Justin Williams, some rights reserved (CC BY), uploaded by Justin Williams. Used under a CC-BY license.

Pronunciation

How to pronounce Omosita: /ˌoʊ.moʊˈsiː.tə/

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Identification

of Omosita can be distinguished using morphological keys; a comprehensive key to all five species is available in recent taxonomic literature. The is characterized by typical nitidulid features including with multiple types. Larval identification requires examination of mature specimens; the mature larva of O. nearctica has been formally described.

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Habitat

Associated with stored products and carrion environments. O. nearctica has established breeding in South Africa after introduction from its native Nearctic range.

Distribution

Holarctic distribution with introduced . Native range includes Nearctic (O. nearctica) and Palearctic regions. Documented establishment in South Africa for O. nearctica.

Host Associations

  • human remains - larvae found on decomposing boneforensic significance; mtDNA recovery demonstrated
  • stored products - pest-level characterization

Life Cycle

Larval stage has been documented on human remains and in stored product environments. Mature larvae of O. nearctica have been formally described.

Behavior

Larvae have been recovered from late decompositional stage human remains. Associated with carrion and stored products.

Human Relevance

Stored-product pest with biosecurity risk potential. Forensic utility: larvae yield human mitochondrial from remains, demonstrating value in for badly decomposed cases.

More Details

Forensic DNA recovery

First demonstration of human mtDNA recovery from necrophagous larvae; Omosita spp. larvae collected from human skeletal remains yielded mtDNA matching the individual.

Taxonomic history

erected by Wilhelm Ferdinand Erichson in 1843. Five currently recognized: O. colon, O. depressa, O. discoidea, O. funesta, and O. nearctica.

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Sources and further reading