Head: Black, ridged. Whiskers (palpi) black.
Antenna: First 3 segments light, rest of segments dark.
Thorax: (Pronotum): Reddish-orange with indented line down middle. Side edges have wide pale yellowish rim or shelf.
Wings: (Elytra): Black with many ridges and indented lines. Side edges have a cream line. Tip has an L-shaped cream patch, widening near center, but not reaching inner wing edge (suture). Sometimes a small to very large cream oblong patch on each wing at base (sub-humeral). Wing tips squared, abdomen exposed past wing tips.
Legs: Light yellowish. Males have 2 rows of hairs on the underside of front foot.
Abdomen: Top dark, exposed past wing tips, underside pale.
Size: 4.5 to 6 mm.
Habitat: Deciduous and boreal forests; Lake Erie shores and cultivated fields in Ontario. Found on flowers like blackberry and goldenrod.
Food: Larvae feed on eggs, larvae and pupa of Flea Beetles like Altica species.
Flight Time: May to July, again in September.
Life Cycle: Adults over-winter, usually under logs. Emerge in May. Attracted to lights. One generation per year.
Comments: Essex County – Ojibway Prairies. Kent County – Rondeau Provincial Park.
For information on synonyms, references and type specimens see next page