Dyschirius (Paradyschirius) affinis Fall 1901
Biology:
According to Lindroth (1961b) "strictly riparian and found on steep sandy-clayish banks of rivers in company of Bledius." The beetles are fully winged and fly; they are attracted to lights. Only one example was collected on the Island, in 1905 (HSB). Teneral adults are found elsewhere in the late summer. The single adult was collected in August. Hibernation takes place, most likely, in the adult stage. Total length, 2.7 to 3.0 mm (2.9).
Synonyms: Dyschirius affinis, Fall, 1901; Dyschirius duplicatus, Fall, 1901