Species Details

Dytiscus dauricus

Freshwater Invertebrate Collection Read more about this collection »

SeasonalityAdults emerge from July to September. IdentificationLarge (29.7 to 40.0mm), broadly elongate (Larson et al. 2000). Black - some with green appearance. Basal antennal segments yellow, darker and reddish terminal segments. All pronotal margins bordered with yellow. Females with reddish or brown-black striae and black ridges. Reddish yellow or reddish ventral surface, except red metacoxa, medially brown-black metasternum, and black anterior and posterior margins of abdominal sterna. Brown-black or black sternal basolateral maculation - progressively smaller to posterior. Yellow or reddish legs.

Scientific Name Dytiscus dauricus Seasonality Adults emerge from July to September. Identification
Large (29.7 to 40.0mm), broadly elongate (Larson et al. 2000). Black - some with green appearance. Basal antennal segments yellow, darker and reddish terminal segments. All pronotal margins bordered with yellow. …
Large (29.7 to 40.0mm), broadly elongate (Larson et al. 2000). Black - some with green appearance. Basal antennal segments yellow, darker and reddish terminal segments. All pronotal margins bordered with yellow. Females with reddish or brown-black striae and black ridges. Reddish yellow or reddish ventral surface, except red metacoxa, medially brown-black metasternum, and black anterior and posterior margins of abdominal sterna. Brown-black or black sternal basolateral maculation - progressively smaller to posterior. Yellow or reddish legs.
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. Conservation No special status (IUCN 2002). Diet Info Predatory - active swimmers (Larson et al. 2000). Invertebrate and fish larvae prey. Records of larval cannibalism and predation on salamanders and snakes in Arizona (Holomuzki 1985, 1986). Range
Holarctic (Larson et al. 2000). This species is recorded from most of Alberta. Wide distribution through Boreal zones and Western Cordillera. Aleutian Islands, Alaska to Newfoundland, as far south as California and…
Holarctic (Larson et al. 2000). This species is recorded from most of Alberta. Wide distribution through Boreal zones and Western Cordillera. Aleutian Islands, Alaska to Newfoundland, as far south as California and Arizona. Found at sea level in northern parts of range to increasingly higher elevations in southern part of range. One record from northwestern China; records from Soviet Union, east of Lake Baikal.

Citation

Page Citation for Dytiscus dauricus

Page Citation

"Dytiscus dauricus, Freshwater Invertebrate Collection." University of Alberta Museums Search Site, https://search.museums.ualberta.ca/g/5-4258. Accessed 22 May. 2022.

Taxonomic Hierarchy

Kingdom Animalia Phylum Arthropoda Class Hexapoda Subclass Insecta Order Coleoptera Suborder Adephaga Family Dytiscidae Genus Dytiscus Species Dytiscus dauricus
This hierarchy is created from our museum records, it may not always accurately reflect modern taxonomies.

Taxonomic Hierarchy for Freshwater Invertebrate Collection

Disclaimer
This hierarchy is created from our museum records, it may not always accurately reflect modern taxonomies.

Authorship

Name Shpeley, D.
Role species page editor
Date 2004
Name Edgar, M.
Role species page author
Date 2003

References

Specimen Information

There is 1 specimen of this Species.

1 result plotted on map in 1 marker.
Note: Only records with latitude and longitude coordinates are plotted on map.

IN4777 - Dytiscus dauricus

Freshwater Invertebrate Collection

Place CollectedCanada: Alberta, Wood Buffalo National Park Collected ByClassen, M. Date Collected2005-05-22