Subphylum Crustacea Arthropods 2

Subphylum Myriapoda Class Chilopoda: Centipedes Up to 177 segments 1 pair of legs on each segment Poisonous Examples: centipedes

Subphylum Myriapoda Class Diplopoda 2 pairs of legs on each segment Emit a foul smell instead of poison Example: millipedes

Millipede

Millipede

Giant African Millipede

Class Arachnidan 8 legs No wings or antennae Cephalothorax and abdomen Incomplete metamorphosis Squirt digestive juices then suck up their meal Examples: Spiders, mites, ticks and scorpions

Class Arachnida Order Araneae: Spiders Fangs to kill prey and deliver venom Spinnerets to make silk 4 pairs of light sensing eyes 43,000+ species of spiders!!!  bird eating spider

Brown Recluse Bite

Brown Recluse Bite

Brown Recluse Bite

Class Arachnida Order Scorpionida: Scorpions 1300 species Claws for grasping prey Tail with venom gland and stinger Have hair sensory organs Scorpion Scorpions

Great Hairy Scorpion – largest in US (up to 6”)

Scorpion’s glow under black light

Class Arachnida Order Acari: Ticks & Mites Most are parasites that feed on blood or hair Cause skin rashes, allergies and spread diseases ticks