Animal / parasitoid / endoparasitoid
larva of Dexia rustica is endoparasitoid of larva of Melolontha melolontha

Animal / parasitoid / endoparasitoid
larva of Dexiosoma caninum is endoparasitoid of larva of Melolontha melolontha
Remarks: Other: uncertain

Plant / resting place / on
swarming adult of Melolontha melolontha may be found on canopy of Malus
Remarks: season: 5-6

Plant / resting place / on
swarming adult of Melolontha melolontha may be found on canopy of Quercus
Remarks: season: 5-6

Plant / resting place / on
swarming adult of Melolontha melolontha may be found on canopy of Broadleaved trees
Remarks: season: 5-6

Animal / pathogen
Steinernema carpocapsae infects larva of Melolontha melolontha