Synonyms and other taxonomic changes
Crioceris asparagi (Linnaeus)
Orig. Comb: Chrysomela asparagi Linnaeus 1758
Smooth, shiny, slightly elongated. Has metallic blue head and bluish-black elytra, each with three yellowish, squared spots and a red outer margin. Thorax is reddish with two small blue spots.
Distinctive but highly variable
adventive, widespread in N. America (NB-BC to GA-CA)(2)
Native to w. Palaearctic (Spain to C. Asia)(3)
Overwinter as adults. Emerge in early spring. Eggs are elongate, dark brown in color, and attached by one end to the host plant. They hatch in 3 to 8 days, larvae feed for 10 to 14 days. Pupate in silken cocoons in chambers in the soil. They take 5 to 10 days.
Eggs, several larval instars
earliest record in our area: NY 1862(1)