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For the United States & Canada
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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


Genus Aradus

Flat Bug - Aradus robustus Aradus aequalis Say - Aradus aequalis Flat Bark Bug - Aradus robustus Flat bug 10.06.26 - Aradus Flat Bug - Aradus True Bug - Aradus robustus Aradus sp. - Aradus Flat Bug Nymph - Aradus
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Hemiptera (True Bugs, Cicadas, Hoppers, Aphids and Allies)
Suborder Heteroptera (True Bugs)
Infraorder Pentatomomorpha
Family Aradidae (Flat Bugs)
Subfamily Aradinae
Genus Aradus
Explanation of Names
Aradus Fabricius 1803
84 spp. in our area(1), ~200 worldwide(2)
3-7 mm
Flat bug with short bucculae (projections beside tylus, the little "beak" visible from above). Thus tylus looks narrow, not thickened. Several species have distinctive antennae--various segments covered with semi-erect thick spines.
worldwide(2), incl. most of NA
under/on tree bark and on shelf fungi
found under bark at various times of year
The Pine Flat Bug (A. cinnamomeus) is a significant pest of pine in e. Europe, especially young trees growing under poor conditions(3) but, contrary to older records, does not occur in NA; its American counterpart is A. kormilevi
Works Cited
1.State records, confirmations, and habitats of Aradidae (Hemiptera: Heteroptera) from Louisiana, U.S.A.
S.J. Taylor & S.A. Gil. 2009. Florida Entomologist 92(2): 199-207.
2.Australian Faunal Directory
3.Western Forest Insects
Furniss, R.L. and Carolin, V.M. 1977. 1977. U.S.D.A. Forest Service Misc. Publ. 1339.