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''Alydus'' is the 
type genus
In biological taxonomy, the type genus is the genus which defines a biological family and the root of the family name.
Zoological nomenclature
According to the International Code of Zoological Nomenclature, "The name-bearing type of a nominal f ...
of broad-headed bugs in the family Alydidae
Alydidae, commonly known as broad-headed bugs, is a family of true bugs very similar to the closely related Coreidae (leaf-footed bugs and relatives). There are at least 60 genera and 300 species altogether. Distributed in the temperate and warme ...
. There are about 11 described species in ''Alydus'', including 2 extinct species. Species are recorded from North America and Europe through to temperate Asia.
Species
These 11 species belong to the genus ''Alydus'': * '' Alydus angulatus'' Hsiao, 1965 * ''Alydus calcaratus
''Alydus calcaratus'' is a bug species with a Holarctic distribution ranging from the British Isles almost all over Europe to eastern Siberia and China. Moreover, the species also in northern North America from Alaska and Québec across the Unit ...
'' (Linnaeus, 1758) - red-backed bug - type species (as ''Cimex
''Cimex'' is a genus of insects in the family Cimicidae. ''Cimex'' species are ectoparasites that typically feed on the blood of birds and mammals. Two species, ''Cimex lectularius'' and ''Cimex hemipterus'', are known as bed bugs and frequently ...
calcaratus'' Linnaeus)
* '' Alydus conspersus'' Montandon, 1893
* '' Alydus eurinus'' (Say, 1825)
* '' Alydus pilosulus'' Herrich-Schaeffer, 1847
* '' Alydus rupestris'' Fieber, 1861
* '' Alydus scutellatus'' Van Duzee, 1903
* '' Alydus tomentosus'' Fracker, 1918
* '' Alydus zichyi'' Horváth, 1901
* † '' Alydus pristinus'' Germar, 1837
* † '' Alydus pulchellus'' Heer, 1853
References
Further reading
*External links
* Alydinae Pentatomomorpha genera {{Coreoidea-stub