Head: Metallic green, smooth and shiny. Whiskers (palpi) black.
Antenna: Black, first joint green, next 2 with green highlights.
Thorax (Pronotum): Metallic green, smooth and shiny; twice as wide as long, sides rounded with rim or shelf wider and pointed on lower margin.
Wings (Elytra): Metallic green, smooth and shiny; ridges and grooves very fine or faint. Wing tips squared, abdomen usually protruding.
Legs: Black, male has pads on underside of front feet.
Abdomen: Blue-black on underside.
Size: 5 to 6.5 mm.
Habitat: Forest edges. Very common on flowers.
Food: Smaller insects, especially all stages of the Grapevine Flea Beetle Altica chalybea.
Flight Time: May to July; again in September to October.
Life Cycle: Mostly unknown. Feed on eggs, larva and pupa of Altica chalybea, and probably other Leaf Beetles. Adults over-winter; attracted to lights.
Comments: Essex County – Point Pelee National Park. Kent County – Rondeau Provincial Park. Widespread.
For information on synonyms, references and type specimens see next page