Dytiscus hatchi Wallis 1950

No special status (IUCN 2002).

Adults emerge from July to September.

This species has not been recorded in Alberta. All records are from west of the Rocky Mountains (Larson et al. 2000); northern British Columbia to Southern California.

Small (22.1 to 28.5 mm), oval-shaped (Larson et al. 2000). Brown to brown-black - some with green appearance. Median chevron on head. Basal antennal segments yellow, terminal segments darker. Lateral and anterior pronotal margins broadly yellow, basal margin narrowly yellow, expanded medial yellow border. Yellow to reddish ventral surface, except metacoxa yellow and metasternum medially brown-black. Apical and basal margins of abdominal sterna brown-black. Legs yellow with darker tarsi and tibia.

Beaver ponds (Larson et al. 2000); ponds in forested areas; associated with aquatic macrophytes.

Overwinter as adults in permanent waters (Larson et al. 2000). Late fall or early spring mating. Univoltine (Aiken and Wilkinson 1985). Strong swimmers, hind legs move together while swimming. Adults attracted to lights.

Predatory - active swimmers (Larson et al. 2000). Invertebrate or fish larvae prey.

Dytiscus hatchi is a species of predaceous diving beetle in the family Dytiscidae. It is found in North America.