Red-breasted Copra Beetle
VU

Red-breasted Copra Beetle

Necrobia ruficollis

Unknown

Photo: Wikimedia Commons (CC) via https://en.wikipedia.org/wiki/Necrobia_ruficollis

Overview

A small, elongate beetle in the family Cleridae, this species is typically recognized by its reddish thorax contrasting with a darker body, a pattern common among checkered beetles adapted to feeding within stored or processed organic materials. Adults and larvae are predatory or scavenging opportunists, often found in association with dried animal and plant products, where they feed on other insect larvae, eggs, and residues left in processing environments. In this capacity, the species plays a minor regulatory role, helping to suppress populations of other pest insects in the same stored-product niches it inhabits.

The species has an unusually broad distribution shaped almost entirely by human commerce and food storage infrastructure rather than natural biogeography, with records spanning countries across Europe, the Americas, Asia-Pacific, and island territories such as New Caledonia, French Polynesia, and Réunion. Its habitat is restricted to terrestrial industrial and storage settings, particularly facilities historically linked to copra (dried coconut) processing.

Population numbers are not established, and the trend is currently listed as unknown. The species is classified as Vulnerable, with threats centered on the modernization and consolidation of food processing industries, which reduce the traditional storage conditions it depends on. Pesticide use in warehouses, the decline of copra production sites, fragmentation of remaining suitable facilities, and shifting climatic conditions affecting humidity and drying processes all contribute to ongoing habitat loss.

No targeted conservation programs are currently documented for this species. Monitoring remains limited, largely incidental to pest surveys in food storage industries. Given its dependence on a narrow and shrinking set of industrial conditions, and the absence of dedicated conservation action, the species' long-term outlook remains uncertain, contingent on trends in global food processing practices that are unlikely to reverse in its favor.

This beetle depends on traditional copra (dried coconut) processing and storage, so its biggest challenges come from modern industrial food processing methods replacing those traditional practices, along with pesticide use in storage facilities that can contaminate its habitat. It also faces problems from shrinking copra production sites and processing facilities becoming more scattered and disconnected from one another, while changing climate conditions are altering the storage environments it relies on. Overall, these threats appear to be ongoing and stable rather than rapidly worsening, though they continue to steadily reduce suitable habitat.

Threat summary

Habitat

This specialized beetle inhabits copra processing facilities, dried meat storage areas, and other locations where decomposing organic matter accumulates. It is particularly associated with traditional food preservation sites in tropical and subtropical regions where coconut and meat drying operations provide suitable breeding substrates.

TERRESTRIAL· major

Frequently asked questions

Why is Red-breasted Copra Beetle classified as Vulnerable?
Red-breasted Copra Beetle is classified as Vulnerable because the population is declining and the species faces a high risk of extinction in the medium-term future if current pressures continue. This beetle depends on traditional copra (dried coconut) processing and storage, so its biggest challenges come from modern industrial food processing methods replacing those traditional practices, along with pesticide use in storage facilities that can contaminate its habitat. It also faces problems from shrinking copra production sites and processing facilities becoming more scattered and disconnected from one another, while changing climate conditions are altering the storage environments it relies on. Overall, these threats appear to be ongoing and stable rather than rapidly worsening, though they continue to steadily reduce suitable habitat.
Where does Red-breasted Copra Beetle live?
Red-breasted Copra Beetle occurs in Argentina, Australia, Austria, Belgium, Brazil, and Canada (plus 37 other countries). Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Red-breasted Copra Beetle?
The main threats to Red-breasted Copra Beetle are ai-1, ai-2, ai-3, and ai-4. The full IUCN-classified threat record for this species is detailed on the species page.

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