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For Insects, Spiders & Their Kin
For the United States & Canada
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Fall Fund Drive


Genus Aradus

Flat Bug - Aradus quadrilineatus Flat Bug nymphs on fungus - Aradus Flat Bug - Aradus falleni Flat Bug - Aradus lugubris Aradus? - Aradus Aradus? - Aradus falleni Flat Bug Nymphs - Aradus Aradus...... falleni - Aradus falleni
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.