Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
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Upcoming Events

Discussion of 2018 gathering

Photos of insects and people from the 2015 gathering in Wisconsin, July 10-12

Photos of insects and people from the 2014 gathering in Virginia, June 4-7.

Photos of insects and people from the 2013 gathering in Arizona, July 25-28

Photos of insects and people from the 2012 gathering in Alabama

Photos of insects and people from the 2011 gathering in Iowa

Photos from the 2010 Workshop in Grinnell, Iowa

Photos from the 2009 gathering in Washington


Species Ahasverus advena - Foreign Grain Beetle

Tiny beetles - Ahasverus advena Ahasverus rectus (LeConte) - Ahasverus advena Silvanidae, ventral - Ahasverus advena Ahasverus sp. - Ahasverus advena Foreign Grain Beetle - Ahasverus advena Cryptophagidae ??? - Ahasverus advena Silvanid Flat Bark Beetle? - Ahasverus advena Small Silvanid or Cucujid? - Ahasverus advena
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 Cucujoidea (Sap, Bark and Fungus Beetles)
No Taxon (Cucujid series)
Family Silvanidae (Silvanid Flat Bark Beetles)
Subfamily Silvaninae
Genus Ahasverus
Species advena (Foreign Grain Beetle)
Other Common Names
New House Bug, Plaster Beetle
Explanation of Names
Ahasverus advena (Waltl 1834)
common in homes (esp. newly built) and grain storage facilities
Molds and fungi growing on damp grain, grain products, stored fruit, and other materials(2)(1)
may be a nuisance in new homes, but do no actual harm
Internet References