Cream-spotted Lady Beetle (Polkadot Ladybug Beetle

Calvia quatuordecimguttata

General Status Rank: 
Secure
Common Name: 
Cream-spotted Lady Beetle (Polkadot Ladybug Beetle
Scientific Name: 
Calvia quatuordecimguttata
Naming References: 
W037
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Taxonomy
Group: 
Beetle
Kingdom: 
Animalia
Phylum: 
Arthropoda
Class: 
Insecta
Order: 
Coleoptera
Family: 
Coccinellidae
Habitat
predator of Psyllidae and of aphids, but preferentially a psyllid predator.
References: 
A265
Distribution

Distribution

~500,000 km2. Nt: appears widespread below the treeline (Gordon 1985), 1 locality above treeline (UASM).UASM: University of Alberta, Strickland Entomological Museum. 218 Earth Sciences Building, Department of Biological Sciences, 11455 Saskatchewan Drive, Edmonton, AB. T6G 2E9
Score: 
G

Number of Occurrences

Nt: appears widespread below the treeline (Gordon 1985), 1 locality above treeline (UASM).UASM: University of Alberta, Strickland Entomological Museum. 218 Earth Sciences Building, Department of Biological Sciences, 11455 Saskatchewan Drive, Edmonton, AB. T6G 2E9; I - 12 widespread localities known (Environment and Natural Resources. 2018. A Field Guide to Lady Beetles of the Northwest Territories. ENR, GNWT, Yellowknife, NT. 75 p.), amounting to ~500,000 km2. Recent locations: Hay River (G Vizniowski 2015) and Yellowknife (J Hollett and H Selzler 2016). Although only 7 records databased, occurrences are likely greater than the number of known localities, however, this information is not currently available.
Score: 
BE

Area of Occupancy

Score: 
-
Threats

Intrinsic Vulnerability

Score: 
-
General Status Rank
Rank: 
Secure
Status Rank Description: 
A decline after the arrival of non-native coccinellines has been implicated. Little quantitative data.
S Rank: 
S3S5
Decision Process Description: 
Draft ranks from Dave McCorquodale of University College of Cape Breton (2010); Reviewed ranks by Chandra Venables (2012) under contract for northern beetles assessment with Environment Canada (National General Status Assessment).; Reviewed in 2020 by Charlene Wood, no change
Last Updated: 
July 30, 2020

References

Habitat

  • Gordon, RD. (1985) The Coccinellidae (Coleoptera) of America north of Mexico.. Journal of the New York Entomological Society. 93(1): 1-912. - A265 Return

Naming

  • McNamara. J. (1991) Family Coccinellidae (Ladybird beetles). Agriculture Canada Pub. 1861/E in Checklist of Beetles of Canada and Alaska. Bousquet, Y. (Web page verison accessed 3 Jan 2008) http://www.canacoll.org/Coleo/Checklist/checklist.htm - W037 Return