asian lady bugs......help

[wonder_chunky]

does anyone know anything about these imported lady bugs?
they are spread all over the U.S. and in canada (well ontario anyways) and i want to know if they are safe for my chameleons to eat because there are so many around here....i noticed that when they are in danger they squirt out this stuff from their butt....but i dont know if its really any danger. it's just because they are from another country so i dont know if they are safe.....but i want to find out for sure, because if they are safe....then it would save me alot of money because i wouldnt feed them as much crickets because i'd have lady bugs too!

any input would be appreciated, thanks