Blueberry Cellophane Bee 
Blueberry Stem Gall Wasp 
bombus sylvicola 
Bottlebrush sawfly 
Bramble Sawfly 
Broad-banded Hopper Wolf 
Broad-faced Mining Bee 
Broad-handed Leafcutter Bee 
Broad-headed Leafcutter Bee 
Brown Tree Ant 
Brown-banded carder bee 
Brown-belted Bumble Bee 
Brown-winged striped-sweat bee 
Bryony Mining Bee 
Buff-tailed Bumble Bee 
Bullet Ant 
Bullet Gall Wasp 
Butternut Woollyworm 
California carpenter bee 
Caliroa liturata 
Callajoppa cirrogaster 
Callibracon limbatus 
Callirhytis piperoides 
Callirhytis quercusgemmaria