Head: Black. Both male and female have small eyes.
Antenna: Black. Tip of each segment whitish. Male has first 3 or 4 segments wider than the female. 11 segments on both male and female. Segment 2 short.
Thorax (Pronotum): Semi-circular, hind margin slightly indented at center. Central black rectangle has mottled black stripe extending only across the rose along hind border. Black may bleed slightly into yellow at front tip (base). Rose or reddish-orange stripe each side of black area. Outside borders translucent yellow.
Wings (Elytra): Black with slightly wider golden outer border. Inner wing border (suture) narrow gold. Center of base of wings (scutellum) large, black.
Legs: Brownish-black with brownish-yellow pile. Sometimes on thighs (femora) pile in a line on each side. Foot pads (underside) yellow.
Abdomen: Black with lower margin and side edges of each segment pale. No light organs on either male or female. Tip black, outlined with pale yellowish to white. Male tip square, female tip pointed. Non-flashing.
Size: 6 to 8 mm.
Habitat: Meadows, field edges. Prefers tall grasses.
Food: Adults apparently do not feed.
Flight Time: Mid-June to mid-July.
Life Cycle: Unknown. Larvae probably live underground, coming to surface to feed on earthworms, slugs and snails as other Photinus.
Comments: Essex County – Point Pelee National Park and Ojibway Prairies. Guelph to Hamilton area and Quebec.
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