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Species Page - Dytiscus hatchi
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scientific name    Dytiscus hatchi    

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

Adults emerge from July to September.

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.

life history
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.

No special status (IUCN 2002).

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

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.

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Comments (1)Add New Comment

trina ondrea (2009-07-16)
This may be our beetle

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Specimen Info
There are 1 specimens of this species in the online database
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Specimen List (1)


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