beautiful silver argiope disc-d stabilimentum

spider animal invertebrate spiderweb arthropod nature insect symmetry argiope argentata species araneidae family common silver silvery color cephalothorax arid warm environments north america central caribbean south stabilimenta web decoration shape unique zig-zag design uv-reflecting silk attract pollinating prey venom harmful notable sexual dimorphism size male smaller female engages cannibalism copulation juvenile juveniles construct disc-shaped decorations beautiful disc stabilimentum family female cephalothorax america argentata maya biosphere reserve mbr petén department northern guatemala