1) Blow fly 2) Bluebottle 3) Hairy green insect 1) Bluebottle 2) Greenbottle 
• (n.) Any species of fly of the genus Musca that deposits its eggs or young larvae (called flyblows and maggots) upon meat or other animal products.
Blow'fly` noun (Zoology) Any species of fly of the genus Musca that deposits its eggs or young larvæ (called flyblows and maggots ) upon meat or other animal products. 
Type: Term Pronunciation: blō′flī See: Calliphora, Lucilia, Phormia regina
Protocalliphora sp., an insect that parasitizes birds. The larvae suck blood from nestlings.
[n] - large usually hairy metallic blue or green fly
blow fly noun large usually hairy metallic blue or green fly; lays eggs in carrion or dung or wounds
Any fly of the genus Calliphora, also known as bluebottle, or of the related genus Lucilia, when it is greenbottle. It lays its eggs in dead flesh, on which the maggots feed