Broad-bordered Grass Yellow 
Broad-faced Mining Bee 
Broad-faced Sac Spider 
Broad-handed Leafcutter Bee 
Broad-headed Leafcutter Bee 
Broad-headed Marsh Fly 
Broad-headed Sharpshooter 
Broad-lined Angle 
Broad-nosed Weevil 
Broad-patched Eugnosta 
Broad-winged Skipper 
Brochymena affinis 
Brochymena affinus 
Brochymena arborea 
Brochymena parva 
Brochymena quadripustulata 
Broken-backed Bug 
Broken-banded leafroller 
Broken-line hypenodes 
Broken-lined Brocade 
Broken-lined zomarium 
Bromius obscurus 
Brontostoma basalis 
Bronze Alder Moth