The best replacement for ladybugs is asian beetles.

The best alternatives to ladybugs are rated as following:
★★★★★  asian beetles
★★★★★  japanese beetles
★★★★  beetles
★★★★  spider mites
★★  asian beetle
★★  praying mantis
★★  asian lady beetle
★  ladybirds
★  lady beetles
★  japanese lady beetles
★  aphids
★  ladybugs
★  mexican bean beetles
★  female ladybugs
  ladybird
  lacewings
  orange ladybugs
  lady bugs
  stink bugs

Your alternative for ladybugs is not listed? Suggest!
Speaking about ladybugs, one probably shouldn't forget about aphids.

Other search terms related to ladybugs and their ratings are:
★★★★★ aphids
You have in mind a companion for ladybugs and it is not yet here? Propose!



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ladybugs
asian beetles
japanese beetles