none Biometrics; Whole animal physiology; Dormancy; Nutrition; Diet; Reproduction; Reproductive behaviour; Reproductive productivity; Life cycle and development; Locomotion; Behaviour; Associations; Parasites diseases and disorders; Parasites; Helminth parasites; Insect parasites; Hosts; Insect hosts; Ecology; Habitat utilization; Land and freshwater zones; Palaearctic region; Europe Pentatomimermis coptosomae (Nematoda); Hemipteran hosts; Coptosoma mucronatum; Czechoslovakia; Recorded from hemipteran hosts Aridelus egregius (Braconidae); Hemipteran hosts; Coptosoma mucronatum & C. scutellatum; Czechoslovakia; Recorded from hemipteran hosts Coptosoma (Plataspidae); Food plants; List; Palaearctic region; Food plant list Coptosoma mucronatum (Plataspidae); Size; Egg batches; Dormancy; Hibernation; Characteristics; Egg; Oviposition; Egg batch shape & size; Egg number; Life cycle and development; Jumping; Somersaulting, normal posture restitution from supine position; Behaviour; Posture; Restitution by somersaulting from supine position; Mutualism; Bacteria; Endosymbiotic relationships; Nematode parasites; Pentatomimermis coptosomae; Hymenopteran parasites; Aridelus egregius; Habitat preference; Czechoslovakia; Biology Coptosoma scutellatum (Plataspidae); Size; Egg batches; Dormancy; Hibernation; Characteristics; Egg; Oviposition; Egg batch shape & size; Egg number; Life cycle and development; Jumping; Somersaulting, normal posture restitution from supine position; Behaviour; Posture; Restitution by somersaulting from supine position; Mutualism; Bacteria; Endosymbiotic relationships; Hymenopteran parasites; Aridelus egregius; Habitat preference; Czechoslovakia; Biology