Melolontha melolontha 

  • is about an inch in length
  • has short feelers on its black head and¬†
  • has a hairy body
  • has non-hairy reddish-brown wing cases (when seen with the naked eye)

Melolontha melolontha has a similar-looking but smaller relative that appears later in the year called the summer chafer (Amphimallon solstitialis). This is on average about half an inch in length and also has a hairy body under reddish-brown wing cases but has long sparsely arranged hairs (when seen with a hand lens or magnifying glass).