Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
Clickable Guide
Moths Butterflies Flies Caterpillars Flies Dragonflies Flies Mantids Cockroaches Bees and Wasps Walkingsticks Earwigs Ants Termites Hoppers and Kin Hoppers and Kin Beetles True Bugs Fleas Grasshoppers and Kin Ticks Spiders Scorpions Centipedes Millipedes

Fall Fund Drive


Species Necrobia rufipes - Red-legged Ham Beetle

Necrobia rufipes - Red-legged Ham Beetle - Necrobia rufipes Ham Beetle - Necrobia rufipes Red-legged Ham Beetles - Necrobia rufipes Red-legged Ham Beetle - Necrobia rufipes Red-legged Ham Beetle - Necrobia rufipes Beetle - Necrobia rufipes Necrobia rufipes? - Necrobia rufipes No post for AZ so far, so here - Necrobia rufipes
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Coleoptera (Beetles)
Suborder Polyphaga (Water, Rove, Scarab, Long-horned, Leaf and Snout Beetles)
No Taxon (Series Cucujiformia)
Superfamily Cleroidea (Bark-gnawing, Checkered and Soft-winged Flower Beetles)
Family Cleridae (Checkered Beetles)
Subfamily Korynetinae
Genus Necrobia
Species rufipes (Red-legged Ham Beetle)
Other Common Names
Copra Beetle
Synonyms and other taxonomic changes
Necrobia rufipes (De Geer)
Orig. Comb: Clerus rufipes De Geer, 1775
Explanation of Names
rufipes (L). 'red leg' (1)
3 spp. n. of Mex. (2) (all cosmopolitan and adventive)
3.5-7.0 mm
Adult: head, thorax, elytra shiny metallic bluish-green or blackish; underside of abdomen dark blue; legs bright reddish-brown or orange; antennae mainly reddish-brown but with dark brown or black club at tip; sides of thorax and elytra with stiff bristle-like hairs
Larva: body creamy-gray with mottled violet-gray markings on upper surface; head and upper surface of first thoracic segment and last (ninth) abdominal segment with brown hardened plates; 2nd and 3rd thoracic segments also with tiny brownish plates; plate on last abdominal segment with two horn-like protuberances which curve strongly upwards
throughout N. Amer. (3)(4); native to the Palearctic, now cosmopolitan (5)
found on dried fish, skins and bones of dead animals, and other carrion; also found on museum specimens
summer in the north; most of the year in the south; year-round indoors; optimum temperature for development indoors is in the range 30-34°C, and the minimum temperature is 22°C
dried/salt fish, skins and bones of dead animals, museum specimens, cheese, bacon, dried egg yolk, bones and bone meal, dried figs, palm nut kernels, dried coconut (copra), and guano; also prey on eggs/larvae of some flies, of Dermestes spp., and its own species (6)
Life Cycle
Eggs are laid on the food material; larvae pass through three or four instars; the last instar spins a cocoon in which pupation occurs; life-cycle takes 6 weeks or longer depending on food type and physical conditions. Under optimum conditions, the rate of population increase is about 25 times per month. The adults fly actively and can thus easily disperse to new sources of food.
major pest of copra and materials of animal origin(3); considered a pest in museums containing specimens of vertebrate animals, as well as in places where dried fish is stored
Print References
Fact sheet - Haines & Rees 1989
Works Cited
1.Dictionary of Word Roots and Combining Forms
Donald J. Borror. 1960. Mayfield Publishing Company.
2.American Beetles, Volume II: Polyphaga: Scarabaeoidea through Curculionoidea
Arnett, R.H., Jr., M. C. Thomas, P. E. Skelley and J. H. Frank. (eds.). 2002. CRC Press LLC, Boca Raton, FL.
3.Beetles associated with stored products in Canada: An identification guide
Bousquet Y. 1990. Research Branch Agriculture Canada, Publication 1837.
4.The checkered beetles (Coleoptera: Cleridae) of the Maritime Provinces of Canada
Christopher G. Majka. 2006. Zootaxa 1385: 31–46.
5.Alien terrestrial arthropods of Europe
Roques A., Kenis M., Lees D., Lopez-Vaamonde C., Rabitsch W., Rasplus J.-Y., Roy D., eds. 2010. BioRisk 4 Special Issue; 2 vols., 1028 pp.
6.Handbook of urban insects and arachnids: A handbook of urban entomology
Robinson W.H. 2005. Cambridge University Press.