Species Adalia bipunctata - Two-spotted Lady Beetle
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)
No Taxon (Coccinellid group)
Family Coccinellidae (Lady Beetles)
Species bipunctata (Two-spotted Lady Beetle)
Synonyms and other taxonomic changes
Adalia bipunctata (Linnaeus)
Orig. Comb: Coccinella 2-punctata Linnaeus
Explanation of Names
bipunctata (L). "two-pointed"
adult length 3.5-5.2 mm (1)
Elytral pigmentation for the adult of this species is highly variable. 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 fourteen. Here are Bugguide submissions which approximate the variations illustrated in Gordon's Fig. 637
g-l, respectively (1)
Immature stages (left to right: larva, prepupa, pupa)
current range: w. US, across s. Can, New England, and a few Midwest records - Map
- Lost Ladybug Project (2)
- 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
shows a clear preference for shrubs and trees (3)
considered by New York State to be a "Species of Greatest Conservation Need" (SGCN) (4)
Spotless forms closely resemble Mulsantina picta, but differ from having 2 white spots on the face instead of 3, and a more tidy pronotal pattern.
May be confused with the larger Harmonia axyridis. However, the center of Harmonia's face (below left) is white, and the center of Adalia's face (below right) is black.
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
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).
|1.||The Coccinellidae (Coleoptera) of America North of Mexico |
Robert D. Gordon. 1985. Journal of the New York Entomological Society, Vol. 93, No. 1.
|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.