Bow-winged grasshopper 
Bowed Fiddler Crab 
Bowl and doily spider 
Box bug 
Box Elder Pouch Gall Mite 
Box tree moth 
Boxelder Leafworm Moth 
Boxer Crab 
Boxer Mantis 
Boxwood Leaftier 
Bracca fritillaria 
Bracca georgiata 
Brachiacantha quadripunctata 
Brachinus brevicollis 
Brachycerus lutosus 
Brachycoleus sexvittatus 
Brachycoleus triangularis 
Brachycybe lecontii 
Brachyglene albicephala 
Brachyglene schausi 
Brachyiulus apfelbecki 
Brachyleptura circumdata 
Brachyleptura rubrica 
Brachynema cinctum