Hybrid elms and Asian beetle
I am not sure what you mean by "Asian beetles". This time of year we commonly see a lot of multicolored Asian lady beetles:
If that's not what you mean, please write back. As far as I know, the multicolored Asian lady beetles will not harm your trees.
As for "resistance to bugs", I am not aware that new hybrid elms are resistant to insects. They have displayed some resistance to Dutch elm disease, which is a disease, not an insect: