Species Coccinella undecimpunctata - Eleven-spotted Lady Beetle

Coccinella (Spilota) undecimpunctata Linnaeus 1758

4.0-5.0 mm(1)

More elongate and less convex than any other species of Coccinella. Head with 2 well separated pale spots (C. novemnotata has a solid band) Elytral suture red, not or only slightly darker than the pale discal area. Elytron usually with 4 small round spots in addition to humeral and scutellar spot, the 2 submedian spots sometimes joined, the outer humeral spot sometimes lacking(1)

Pacific Northwest

Native to w. Palaearctic(2), adventive elsewhere, incl. NA: OH-NJ-NF-ON, OR-BC (map)(1), currently seems to be restricted to the Pacific Northwest (Smyth et al. 2013)

earliest record in our area: MA 1912(3)

Schaeffer C. (1912) Coccinella undecimpunctata Linn. in Massachusetts. Psyche 19: 104-105.

Smyth R.R., Allee L.L., Losey J.E. (2013) The status of Coccinella undecimpunctata (L.) (Coleoptera: Coccinellidae) in North America: an updated distribution from citizen science data. The Coleopterists Bulletin 67(4): 532–535.

Watson W.Y. (1979) North American distribution of Coccinella u. undecimpunctata L. (Coleoptera: Coccinellidae). Coleopterists Bull. 33: 85-86.

Wheeler A.G., Hoebeke E.R. (1981) A revised distribution of Coccinella undecimpunctata L. in eastern and western North America (Coleoptera: Coccinellidae). Coleopterists Bull. 35: 213-216.

Wheeler A.G., Hoebeke E.R. (2008) Rise and fall of an immigrant lady beetle: is Coccinella undecimpunctata L. (Coleoptera: Coccinellidae) still present in North America?. Proceedings of the Entomological Society of Washington 110(3): 817-823.