Hi dday,
I get them online from a small Dutch company whose name translates as "red with black dots".
http://www.roodmetzwartestippen.nl/a-25340880/bladluizen/30-larven-van-lieveheersbeestje-tegen-bladluis/
Okay, they are a little bit pricey, but I must say it was worth it. I am extremely...