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For Insects, Spiders & Their Kin
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Species Heterocerus fenestratus

Heteroceridae? - Heterocerus fenestratus Heteroceridae? - Heterocerus fenestratus Variegated Mud-loving Beetles - Heterocerus fenestratus Heterocerid - Heterocerus fenestratus Hetero 5 - Heterocerus fenestratus Variegated Mud-loving Beetle - Heterocerus fenestratus Variegated Mud-loving Beetle - Heterocerus fenestratus Heterocerid - Heterocerus fenestratus
Classification
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 Elateriformia)
Superfamily Byrrhoidea (Pill, Water and Toe-winged Beetles)
Family Heteroceridae (Variegated Mud-loving Beetles)
Genus Heterocerus
Species fenestratus (Heterocerus fenestratus)
Synonyms and other taxonomic changes
Heterocerus tristis Mannerheim 1853; Lapsus tristis [combination used as valid in(1)]
Explanation of Names
Heterocerus fenestratus (Thunberg 1784)
fenestratus = 'having windows' (refers to the pale elytral maculae)
Size
3-4.7 mm(2)
Range
Essentially Holarctic, common north of 40°N, recorded in se. US only from FL(3); ranges north to NT-AK(1)
Remarks
hypermandibulate males unknown(3)
Internet References