Red-Shouldered Ham Beetle

Pronunciation

How to pronounce Necrobia ruficollis: /nɛˈkroʊbiə ˌruːfɪˈkɒlɪs/

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Summary

Necrobia ruficollis, also known as the red-shouldered ham beetle, is a mostly carnivorous beetle in the family Cleridae, known for its role in the decomposition of dead animals and its association with human history through the contributions of Pierre André Latreille.

Physical Characteristics

Length 4.0–6.5 mm (0.16–0.26 in); mostly metallic black or dark blue with reddish brown thorax, legs, and elytra bases.

Identification Tips

Look for the reddish brown coloration on the thorax and the bases of the elytra, alongside its characteristic metallic sheen.

Habitat

Often found on dead animals, particularly in later stages of decomposition, and in environments such as meat processing facilities or areas with animal remains.

Distribution

Cosmopolitan; native to the Palaearctic and adventive in North America.

Diet

Mostly carnivorous; feeds on dead animals, dried and smoked meats, animal skins, and cheese.

Life Cycle

Lifecycle details not provided; generally associated with environments with decaying organic matter.

Ecosystem Role

Useful in forensic entomology due to its presence on decaying cadavers; helps in the decomposition process.

Economic Impact

Can be associated with food spoilage due to its presence on dried and smoked meats.

Cultural Significance

Notably associated with the life of French zoologist Pierre André Latreille who was saved due to its discovery in prison.

Collecting Methods

• Traps placed near decaying organic matter
• Manual collection from infested sites

Preservation Methods

• Drying
• Alcohol preservation

Misconceptions

May be confused with other beetles in similar habitats; however, distinct coloration helps in identification.

Tags

• beetle
• necrobia
• cleroidea
• red-shouldered ham beetle