INTRODUCTION 1
BITING/PIERCING ARTHROPODS 4
1. Black Widow Spider (_Latrodectus mactans_) 4
2. Brown Recluse Spider (_Loxosceles reclusa_) 6
3. Centipedes (Class: Chilopoda) 8
4. Conenose or Kissing Bugs (_Triatoma_ spp.) 10
5. Wheel Bug (_Arilus cristatus_) 12
STINGING ARTHROPODS 14
1. Ants (Order: Hymenoptera; Family: Formicidae) 14
2. Bees (Order: Hymenoptera; Family: Apidae) 17
3. Scorpions (Class: Arachnida; Order: Scorpionida) 20
4. Velvet Ants (Order: Hymenoptera; Family: Mutillidae) 22
5. Wasps (Order: Hymenoptera; Family: Vespidae) 24
URTICATING/VESICATING ARTHROPODS 26
1. Blister Beetles (Order: Coleoptera; Family: Meloidae) 26
2. Urticating Caterpillars 28
a. Io Moth Caterpillar (_Automeris io_) 28
b. Puss Caterpillar (_Megalopyge opercularis_) 30
c. Saddleback Caterpillar (_Sibine stimulea_) 32
BIBLIOGRAPHY 34
APPENDIX: ARTHROPOD ENVENOMIZATION REACTIONS AND TREATMENT 39
Chart 1: Antihistamines 48
Chart 2: Treatment of Anaphylaxis—Shock 49