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Species Tachys sagax

Paratachys sagax - Tachys sagax - female
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Coleoptera (Beetles)
Suborder Adephaga (Ground and Water Beetles)
Family Carabidae (Ground Beetles)
Subfamily Trechinae
Tribe Bembidiini
Subtribe Tachyina
Genus Tachys
No Taxon (subgenus Paratachys)
Species sagax (Tachys sagax)
Explanation of Names
Tachys sagax Casey 1918(1)
Identification
"[...] enormous hemispherical eyes. [...] darkened head and antennae, long antennomeres, concolorous pale pronotum and elytra without darker marks, transverse (therefore iridescent) pronotal and elytral microsculpture, linear trapezoidal pronotal shape, and dilation of only the first male protarsomere." -R.L.Davidson in (2)
Range
Scattered localities - IL, AR, MD, MS, TN, VA(1)
Remarks
Common but enigmatic; May be a complex of species(2)
Works Cited
1.Catalogue of Geadephaga (Coleoptera, Adephaga) of America, north of Mexico
Bousquet Y. 2012. ZooKeys 245: 1–1722.
2.Thirty ground beetles new to Virginia, and a milestone
R.L. Hoffman, S.M. Roble, R.L. Davidson. 2006. Banisteria 27:16-30.