Apristus subsulcatus (Dejean) 1826
Biology:
Found on dry sand mixed with gravel and silt about one meter from the river edge, by splashing. These beetles are fully winged and fly (Larochelle, 1975a). Two examples were collected on the Island in 1906 (WLM) and 1974 (TLE & DRW). No teneral specimens seen. The adults were collected in April and August. Hibernation takes place as an adult (Lindroth, 1969). Total length, 6.3 to 7.8 mm (7.0).
Synonyms: Apristus cordicollis, (LeConte), 1848