Checking the web I see that the Asian species of Lady IRD is gradually encroaching on NZ crops and may well effect the taste of wine!
When I was a boy, a long time ago now, the lady birds in our garden were treated as friends and encouraged to settle on crops effected by aphid .
I recall the rhyme - Lady bird , lady bird , fly away home
Your house is on fire, your children are alone
These natives were always orange winged with black spots so how are they identified against the Asian intruder?