yellow sac spider cheiracanthium punctorium in czech republic

animal arachnid arachnida arachnophobia araneae araneidae arthropod arthropoda arthropods background biology cheiracanthium closeup creature creepy danger dangerous ecology entomology europe european fear female gnaphosidae grass green ground invertebrate isolated large legs macro natural nature nightmares organism phobia poisonous portrait predator punctorium sac scary spider venom venomous web wild wildlife yellow