reliable source for beneficial insects?

reliable source for beneficial insects?

howdy folks! i was discussing beneficial insects with the boyfriend recently. he said we get tons of ladybugs, and i mentioned lacewings and mantids. he's interested in getting praying mantis egg cases...and i'm all for it. what would be a reliable source for them in the US? i'm in Baltimore, so if someone knows of a local source, that would be spectacular. i'm fine with getting them online, as well.
See how our garden grows!

See how our garden grows!

My mutant baby.

My mutant baby.

Sweepa broom

Sweepa broom

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Bee balm!

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the beginning starts here…

the beginning starts here…