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Species Adalia bipunctata - Two-spotted Lady Beetle

Two Spotted Lady Beetle - Adalia bipunctata Mating Adalia, two colour forms! - Adalia bipunctata - male - female Black ladybug ID - Adalia bipunctata Lady beetle ID - Adalia bipunctata Immature Something ? - Adalia bipunctata Two-spotted Lady Beetle - Adalia bipunctata Adalia bipunctata (Linnaeus) - Adalia bipunctata Adalia bipunctata? - Adalia bipunctata
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Coleoptera (Beetles)
Suborder Polyphaga (Water, Rove, Scarab, Long-horned, Leaf and Snout Beetles)
No Taxon (Series Cucujiformia)
Superfamily Coccinelloidea
No Taxon (Coccinellid group)
Family Coccinellidae (Lady Beetles)
Subfamily Coccinellinae
Genus Adalia
Species bipunctata (Two-spotted Lady Beetle)
Synonyms and other taxonomic changes
Adalia bipunctata (Linnaeus)
Orig. Comb: Coccinella 2-punctata Linnaeus, 1758
Explanation of Names
bipunctata (L). "two-pointed"
Size
adult length 3.5-5.2 mm (1)
Identification



Adult: typical form has orange or red elytra with two black spots, and a black pronotum with white edges; other rarer forms range from all black to mostly black with red spots to mostly red with black spots, and the number of spots ranges from zero to ten.
Range
current range: w. US, across s. Can, New England, and a few Midwest records - Map - Lost Ladybug Project (2)
Historical Range - Gordon (1985) (1), Most of US and Canada except southern portion of southern tier of states.
Native to Europe and North America, "Its range in North America seems to be narrowing. Our greatest fear is that it's declining along with Coccinella novemnotata (C-9, the nine-spotted lady beetle) because of the same factors, and that it, too will soon disappear from large areas of its former range." - Danielle Martinez, Cornell U., 2006
Habitat
shows a clear preference for shrubs and trees (3)
Food
prey generalist (3)
Remarks
considered by New York State to be a "Species of Greatest Conservation Need" (SGCN) (4)
See Also
The markings on the pronotum are similar to those of Harmonia axyridis. However, the center of Harmonia's face (below left) is white, and the center of Adalia's face (below right) is black.
Print References
Harmon, J.P., Stephens, E., Losey, J. 2007. The decline of native coccinellids (Coleoptera: Coccinellidae) in the United States and Canada. Journal of Insect Conservation 11: 85-94. Abstract
Internet References
6 live adult images - Keith Edkins, UK
presence in North America - Danielle Martinez, Cornell U., 2006
Systema naturae, 10th ed., v.1, p.364 - Linnaeus' original description (in Latin).
Works Cited
1.The Coccinellidae (Coleoptera) of America North of Mexico
Robert D. Gordon. 1985. Journal of the New York Entomological Society, Vol. 93, No. 1.
2.The Lost Ladybug Project (LLP)
3.Ecology and behaviour of the ladybird beetles (Coccinellidae).
Hodek, I., H.F. van Emden & A. Honěk (eds). 2012. Blackwell Publishing Ltd., Chichester, UK, xxxvii + 561 pp.
4.New York "Species of Greatest Conservation Need" (SGCN)