Which description matches the Japanese beetle adults and grubs feeding timing?

• A. Bright blue; grubs feed in winter
• B. Dark metallic green, stout bodied; grubs feed on turf in May or September
• C. Black with red thorax
• D. Yellow striped; grubs feed in summer

Answer: (B)

Japanese beetles are easily recognized by their dark metallic green head and thorax with bronze–colored wing covers, and they are stout-bodied for their size. The larvae are C-shaped white grubs that live in turf roots and feed when soil conditions are warm, which commonly occurs in spring and again in the fall. So, describing the adults as dark metallic green and the grubs as feeding in May or September matches both the insect’s appearance and its usual turf-root feeding timing. The other descriptions mix colors that don’t fit this beetle or assign feeding times (like winter feeding) that aren’t typical for its life cycle.