Bibio varipes 
Billaea irrorata 
Black and grey true bee fly 
Black and White Giant Fly 
Black Banded Bee Fly 
Black Bee Fly 
Black carrion fly 
Black Horse Fly 
Black Snipefly 
Black Soldier Fly 
Black-banded Hoverfly 
Black-banded Signal Fly 
Black-horned Gem Fly 
Black-horned Smoothtail 
Black-legged Flower Fly 
Black-margined Flower Fly 
Black-shouldered Drone Fly 
Black-spotted Falsehorn 
Black-tailed Aphideater 
Blaesodiplosis crataegifolia 
Blepharicnema splendens 
Blue Blowfly 
Blue bottle fly 
Blue Long-horned Snailkiller