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TaxonomyBrowse
Info
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Family Aradidae - Flat Bugs

Flat Bug - Quilnus niger Aradus ? - Aradus fuscomaculatus Flat Bug - Aneurus inconstans - male Aradus...... falleni - Aradus falleni Unknown bug on Cryptoporus volvatus (Cryptic Globe Fungus) - Aradus debilis Subfamily Mezirinae? - Mezira lobata Tiny aradid - possibly Nannium (pusio)? - Nannium pusio Aradus?  - Aradus
Classification
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)
Numbers
~130 spp. (>⅔ of which are in Aradus) in 13 genera in our area, arranged in 5 subfamilies(1)(2); close to 2,000 spp. in 230 genera of 8 subfamilies worldwide(3)
Overview of our fauna (* –taxa not yet in the guide)
Family ARADIDAE
Subfamily Aradinae Aradus · Quilnus
Size
3-11 mm
Identification
Abdomen extends beyond wings. Antennae and beak have four segments. Lack ocelli.
Key to genera and the commonest (mostly ne.) species is provided in (5); to spp. of Canadian fauna, in(6)
Many nw. species imaged at(7)
Range
worldwide; most diverse in Australia(3)
Habitat
mostly under bark, on fallen logs & tree limbs, bracket fungi; some smaller forms in leaf litter
Food
mycelia or fruiting bodies of wood-rotting fungi(3)
Life Cycle
many bark-dwelling spp. are gregarious(3)
Remarks
mouthparts "stored" coiled inside the head
Works Cited
1.State records, confirmations, and habitats of Aradidae (Hemiptera: Heteroptera) from Louisiana, U.S.A.
Taylor S.J., Gil S.A. 2009. Fla. Entomol. 92: 199-207.
2.Taylor S. (2002-2011) Aradidae (Flatbugs)
3.Zoological catalogue of Australia: Hemiptera: Heteroptera (Pentatomomorpha)
Cassis G., Gross G.F. 2002. CSIRO Publishing, 751 pp.
4.New Florida and United States Heteropteran records (Hemiptera: Aradidae, Coreidae, Miridae)
Henry T.J., White C.E., Halbert S.E. 2021. Proc. Ent. Soc. Wash. 123: 538-550.
5.How to Know the True Bugs
Slater, James A., and Baranowski, Richard M. 1978. Wm. C. Brown Company.
6.The Aradidae of Canada (Hemiptera: Aradidae)
Matsuda R. 1977. The insects and arachnids of Canada, Pt. 3. Ottawa: Agriculture Canada. 116 pp.
7.Photo gallery of the Spencer Entomological Collection