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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Beetles (Coleoptera) » Polyphaga » Series Cucujiformia » Cucujoidea » Cucujid series » Silvanid Flat Bark Beetles (Silvanidae) » Silvaninae » Oryzaephilus

Genus Oryzaephilus

Classification · Other Common Names · Explanation of Names · Numbers · Size · Identification · Range · Habitat · Season · Food · Internet References · Works Cited
Clerid? - Oryzaephilus surinamensis Oryzaephilus - Oryzaephilus mercator Beetles in birdseed - Oryzaephilus - male - female Sawtoothed Grain Beetle - Oryzaephilus surinamensis Sawtoothed Grain Beetle - Oryzaephilus surinamensis Oryzaephilus surinamensis Merchant Grain Beetle - Oryzaephilus mercator beetle - Oryzaephilus
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Coleoptera (Beetles)
Suborder Polyphaga
No Taxon (Series Cucujiformia)
Superfamily Cucujoidea
No Taxon (Cucujid series)
Family Silvanidae (Silvanid Flat Bark Beetles)
Subfamily Silvaninae
Genus Oryzaephilus
Other Common Names
Merchant Grain Beetle (O. mercator), Saw-toothed Grain Beetle (O. surinamensis)
Explanation of Names
Oryzaephilus Ganglbauer 1899
Numbers
2 spp. in our area (both adventive), 15 spp. worldwide(1); a third sp., O. acuminatus, recorded in FL in 1983 in a shipment of neem tree seeds (Azadirachta indica) from India, but has not established
Size
2.5-3.7 mm
Identification
Adult: brown, elongate, with striated elytra; pronotum with several teeth on lateral margins, a medial ridge, and a dorsolateral ridge on each side of midline
see(2)(3)(4)
Range
the two major pest spp. are cosmopolitan; 9 spp., Afrotropical; the remaining four, Asian (Middle East, India)(1)
Habitat
in containers or buildings where grain is stored; adult O. surinamensis cannot fly but come to lights; adults of O. mercator are strong fliers but are not attracted to light
Season
year-round indoors or in warm climates
Food
larvae and adults feed on damaged kernels of stored grains: barley, oats, rice, sunflower seeds, and wheat, plus flour, pasta, breakfast cereals, cake mixes, and various other processed foods
Internet References
Fact sheets: Calvin (1990)[cite:612026] | |
O. acuminatus fact sheet (McLellan 2012)(5)
Works Cited
1.Thomas M.C. (-2011) A preliminary checklist of the flat bark beetles of the world
2.Beetles associated with stored products in Canada: An identification guide
Bousquet Y. 1990. Research Branch Agriculture Canada, Publication 1837.
3.Insect and Mite Pests in Food, an Illustrated Key
J. Richard Gorham, editor. 1991. United States Department of Agriculture Handbook 655.
4.Handbook of urban insects and arachnids: A handbook of urban entomology
Robinson W.H. 2005. Cambridge University Press.
5.PaDIL – High quality images and information tools designed for Biosecurity and Biodiversity
Contributed by Robin McLeod on 3 January, 2006 - 10:48pm
Additional contributions by Mike Quinn, v belov
Last updated 23 January, 2022 - 1:45pm

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