Dyschirius (Paradyschirius) terminatus
Geographic: NEA
Distribution: Native, New World. México – CS, JA, NA, OA, SI, SL, SO; USA – AL, AR,
AZ, CA, DE, FL, IA, IL, IN, KS, LA, MA, MD, MI, MO, MS, NC, NE, NJ, NM, NY, OH,
OK, PA, SC, TN, TX, VA, WI.
Common name: End Discolored Beetle
Synonym: Dyschirius terminatus LeConte, 1848:212
Macrohabitat: Lowlands, sea level – 457 meters altitude, on banks of large rivers
and in flooded places. Microhabitat: Adults are ground-dwelling on exposed moderately
moist bare sandy substrate. Dispersal abilities: Macropterous, capable of flight; slow runners,
strong burrowers. Seasonal occurrence: Adults have been found in January – December;
probably a spring breeder. Behavior: Adults are mostly nocturnal, sometimes active in
the sunshine, predaceous, and take cover during the day in burrows they dig into the substrate,
or under debris. Adults repeatedly flying to UV and white lights at night. Populations of this
species are associated with staphylinids (Bledius ssp.). In the northern part of their range, adults
overwinter in the substrate; in the southern part, they likely aestivate during the dry season in
the substrate.