Hello Ecotrain friends, it is a pleasure to be again in this wonderful community where I like to contribute so much.
In this opportunity I am here to show you that it is not good to kill all the insects that we can observe inside our houses, because if you did not know it, insects have their food chain by hierarchy, so ladybugs and praying mantises finish the garden pests because they are part of their food.
The cockroach and mosquito are also food for other animals that are also necessary to balance our ecosystem.
So if you are not going to eat any of these bugs better not kill them...they are very necessary for pest control.
1-Stink bugs:

Stink bugs outside the home eat other insects that destroy crops. If they happen to be inside your home, do not squash them, as doing so causes them to release pheromones and this will attract more stink bugs.
2-Antlions and Doodlebugs:
Ant hills, although large and intimidating, feed on ants. The function of these is to get the ants to fall inside and eat them.
This is why ant hills are good to have at home since ants are their main source of food.
3-Household centipedes:

Those ones you find in the bathroom, with many legs, and even feathers... these are definitely the ones that feed on many other insects, so before you squash them you better guide them for any crevices you have in your house.
4-Bugs destroyer:
Sometimes confused with the invasive mealybug that this insect feeds on, but the destroyer has tentacles or curly appendages on its dark body.
Mealybugs, on the other hand, are almost all white and have a long tail. As an important point, mealybug destroyers consume mealybugs at all stages of the mealybug life cycle. And this is very good.
In addition to killing mealybugs they also destroy aphids, which gardeners love.
5-Spiders:

I must confess that seeing a spider inside a house is totally unpleasant, but outdoors they are very efficient when they are outdoors since the larger spiders eat the insects guilty in the destruction of gardens and foliage.
Jumping spiders eat their food alive and fresh, so if you see them, please do not kill them. Cellar spiders are responsible for eating black widows among other spiders.
6-Parasitic wasps:
Wasps and braconids prey on hornworm caterpillars, which destroy tomato plants.
Trichogamma wasps (the parasites) lay their eggs inside the eggs of more than 200 varieties of insect pests, (really very good). All this is possible because the eggs of this wasp are very small and cannot be distinguished from the eggs of other pests.
7-Earth beetles:

These insects serve for insect and slug pests, but they serve to eliminate unwanted weeds as they feed on them.
Without the existence of these ground beetles, weeds would spread 30% more on a farm or in your yard, so these insects serve a dual purpose: they kill pests and insects, plus weeds... this is excellent.
When one type of food is not abundant, they go for the other. Unfortunately, some good beetles eat other beneficial bugs.
8-Green lacewings:
Sometimes these can be intentionally released naturally in gardens for pest control. These green lacewings will eat anything you want when it comes to insect pests.
9-Bees and other stinging insects:

Bees, wasps and hornets are very important when it comes to insects. All of them are important pollinators and are usually benign, bumblebees and honeybees are the most beneficial and less aggressive.
So without these insects we would have many pests in our gardens or parks.
10- Killer bugs: Killer bugs inject venom into their prey and natural pest control are excellent. They kill unwanted flies, mosquitoes and aphids.
Their bite is annoying to humans, and it usually happens when you try to grab some assassin bugs. So please do not touch them when you see them in your home.
Recommended Bibliographic Reference
[1] 10 insects you should never krill on your property