Ce. Carlton et Ds. Chandler, REVISION OF THE NEARCTIC GENUS PSEUDACTIUM CASEY (COLEOPTERA, PSELAPHIDAE, EUPLECTINAE), The Coleopterists bulletin, 48(2), 1994, pp. 171-190
The genus Pseudactium Casey (=Racemia Newton and Chandler, new synonym
y) is redescribed and shown to include ten species: three species prev
iously placed in the genus-P. carolinae Casey (the type species), P. a
rcuatum (LeConte) (lectotype designated), P. parabolicum (Brendel) (=R
amecia dentiventris Casey, R. discreta Casey, P. mellinum Casey, and P
. cephalicum Casey, new synonymies); Ramecia mendica Park, here moved
to Pseudactium (new combination)-and six new species: P. alexanderi, P
. copelandi, P. magazinensis, P. pecki, P. stannardi, and P. steevesi.
Ramecia is redefined and its two species diagnosed: R. capitula (Case
y) and R. crinita (Brendel). Pseudactium species, except P. stannardi
(western Iowa), occur in deciduous forest habitats in eastern and sout
heastern United States, with a concentration of species in Alabama. Se
veral species appear to be restricted to old growth deciduous forests.