It helps us get rid of the aphids, and we should never kill a lacewing or a child of the lacewing.
"The Insect Folk" by Margaret Warner Morley
Includes the alder-flies, ant-lions and lacewing-flies.
"Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 4" by Various
Spider mites have lots of natural enemies (like lacewings, minute pirate bugs, big eye bugs, and predaceous mites , thrips and midges) that often limit populations.