none Nutrition; Diet; Parasites diseases and disorders; Parasites; Insect parasites; Hosts; Insect hosts; Host parasite relationships; Ecology; Land and freshwater zones; Palaearctic region Araneus marmoreus (Araneae); Prey; Coccinella septempunctata (Coleoptera); Recorded; USSR; Predation on Coccinella septempunctata (Coleoptera) recorded Insecta; Prey; Coccinella septempunctata (Coleoptera); Predator records; USSR; Parasites & predators of coleopteran, survey results Coccinella septempunctata (Coccinellidae); Dipteran parasites; Degeeria & Phalacrotophora; Hymenopteran parasites; Dinocampus; Homalotylus & Tetrastichus; Parasite survey results; Prevalence; Dipteran & hymenopteran parasites; Predators; Araneus marmoreus (Arachnida) & Insecta; Predator survey results; USSR; Arthropoda predators & insect parasites, survey results Phalacrotophora fasciata (Phoridae ); Medina luctuosa (Tachinidae ); Dinocampus coccinellae (Braconidae ); Homalotylus flaminius (Encyrtidae ); Tetrastichus coccinellae (Eulophidae ); Coleopteran hosts; Coccinella septempunctata; Parasite survey results; Prevalence; Coccinella septempunctata (Coleoptera); USSR; Parasitization of coleopteran