Pseudactium arcuatum (LeConte)

Ferro, Michael L., Gimmel, Matthew L., Harms, Kyle E. & Carlton, Christopher E., 2012, Comparison of the Coleoptera communities in leaf litter and rotten wood in Great Smoky Mountains National Park, USA, Insecta Mundi 2012 (259), pp. 1-58 : 23

Pseudactium arcuatum (LeConte) ( Fig. 52 )

Range: Alabama, Florida, Georgia, South Carolina, Tennessee. Habitat: forest floor debris, hardwood litter. Collection Method: sifting/Berlese litter. Biology: unknown, wingless, members of this subfamily are predacious. Present Study: significantly higher abundance in leaf litter, secondary forest, and fall. References: Carlton and Chandler 1994.

Rhexius schmitti Brendel ( Fig. 53 )

Range: eastern North America west to Oklahoma. Habitat: rotten wood, leaf litter. Collection Method: sifting/Berlese litter, UV light. Biology: unknown, members of this subfamily are predacious. Present Study: significantly higher abundance in leaf litter, secondary forest, and spring. References: Chandler 1990a; Downie and Arnett 1996.

Figures

Figures 49–54. Habitus images. 49) Eutyphlus sp. (female) (Staphylinidae: Pselaphinae). 50) Machaerodes carinatus (Brendel) (Staphylinidae: Pselaphinae). 51) Mipseltyrus nicolayi Park (Staphylinidae: Pselaphinae). 52) Pseudactium arcuatum (LeConte) (Staphylinidae: Pselaphinae). 53) Rhexius schmitti Brendel (Staphylinidae: Pselaphinae). 54) Rhexius sp. (female) (Staphylinidae: Pselaphinae).