Well, whatever he is, he's outside singing right now. We NEVER have cricket sounds in this area. I don't know why, but we don't. We get frogs now and again, but tonight, I'm being treated to the chirping, which I love, love, love. I'm glad I didn't kill him, but I do hope that there's just the one of him, and that after he gets a good meal from whichever of my plants he's going to munch on (probably the zukes, since that's where he hung out all day), he'll grow up and hop along outta here without inviting any friends.

Interesting....I've never considered a wheel bug as a large insect. Trees, by "looked just like a cricket " are you referring to large hind legs used for jumping? If so, could it have been a grasshopper? If no to the jumping legs, what about this insect makes you think of a cricket? Can you absolutely eliminate any category of insect....like beetles or wasps? Without a picture, we need more help.

And another point...if you are just seeing the german roaches...they might be coming in from the grocery store! A few years back, I remember finding a roach in my pantry. Threw out mostly every thing and sprayed the whole thing down. Then about a week later, I was carrying my bags (a mix of plastic and paper) into the house from the car. I would put them on the floor and then go out to get more bags. On about my third trip, I noticed 2 german roaches walking right out of the bags on the floor! Needless to say, I stopped shopping at that store and now use my own bags. I can vouch for Publix too (it was NOT the store I had shopped at on the roach bag day!), but one day while shopping I noticed one roach near the rice section. I told some teenage stock boy thinking he is probably going to ignore what I just told him! Instead about 10 minutes, he came running up behind me and said "can you come back and show me exactly where you saw the roach?". I went back with him and lo and behold the manager, the assistant manager and the stock boy had completely cleared off the rice shelves, bagged everything up into sealed bad garbage bags and they were cleaning the shelves! That is my kind of store!!!

This? https://www.insectidentification.org/insect-description.php?identification=Orange-Assassin-Bug https://bugoftheweek.com/blog/2017/10/24/bugs-in-orange-and-black-three-assassins-milkweed-assassin-bug-izelus-longipesi-orange-assassin-bug-ipselliopus-barberii-and-wheel-bug-iarilus-cristatusi