Cocoa moth vs Common harp ground beetle

Ephestia elutella compared with Amara communis

Taxonomic Classification

Rank	Cocoa moth	Common harp ground beetle
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Arthropoda (Arthropods)	Arthropoda (Arthropods)
Class same	Insecta (Insects)	Insecta (Insects)
Order	Lepidoptera (Butterflies & Moths)	Coleoptera (Beetles)
Family	Pyralidae	Carabidae
Genus	Ephestia	Amara
Species	Ephestia elutella	Amara communis

Evolutionary Relationship

Cocoa moth and Common harp ground beetle share a common ancestor at the Class level: Insecta. (Insects)

Conservation Status

Cocoa moth

LC — Least Concern

Common harp ground beetle

LC — Least Concern

Physical Characteristics

Attribute	Cocoa moth	Common harp ground beetle
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Cocoa moth

Habitat

Found across multiple habitat types including tropical and subtropical dry broadleaf forests, deserts and xeric shrublands, and Mediterranean forests and woodlands spanning the Afrotropic and Palearctic realms.

Range

Widely distributed across Africa (Cabo Verde), Asia (4 countries), Europe (30 countries), and North America (Canada, United States).

Common harp ground beetle

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Found across Europe (5 countries) and North America (Canada, United States).

Cocoa moth

The cocoa moth (Ephestia elutella) is a small moth in the family Pyralidae with a wingspan of 14–22 millimetres, cosmopolitan in distribution as a stored-product pest. The species is native to Europe but has spread globally through trade in stored commodities, particularly cocoa beans (from which its common name derives), dried fruits, tobacco, grain, nuts, and confectionery. Adults are greyish-brown with subtle patterning on the forewings; they are short-lived and do not feed as adults. Females lay eggs directly in or near food material; larvae are creamy-white with dark head capsules and spin silken webbing through infested commodities as they feed, causing significant post-harvest economic losses. Like other pyralid stored-product moths, E. elutella is a major pest of food processing and warehousing facilities worldwide, thriving in warm, dry storage conditions with high carbohydrate content. It has been recorded from at least 30 European countries and is present on all inhabited continents. Control relies on temperature treatment, pheromone-baited monitoring traps, and chemical insecticides, though resistance to some compounds has been reported. The species is classified as Least Concern by the IUCN, reflecting its global distribution and thriving populations in human-modified environments. Its economic importance has made it the subject of extensive research into stored-product pest biology, chemical ecology, and integrated pest management strategies.

Common harp ground beetle

The common harp ground beetle, <em>Amara communis</em>, is an insect belonging to the order Coleoptera, family Carabidae, the ground beetles. This species is distributed across Europe and North America, indicating a wide Holarctic range. Ground beetles of the genus Amara are typically found in a variety of terrestrial habitats including grasslands, agricultural fields, woodland margins, and disturbed areas. Members of this genus are generally omnivorous or seed-feeding, and some are known to consume weed seeds, giving them potential ecological significance in agroecosystems. <em>Amara communis</em> is assessed as Least Concern on the IUCN Red List, reflecting stable populations across its range. No dietary information has been provided specifically for this species in current records. Biological traits of this species remain poorly documented in the scientific literature.

Shared Countries

Both species can be found in 7 countries:

🇧🇪 Belgium 🇨🇦 Canada 🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden 🇨🇭 Switzerland 🇺🇸 United States