Some things I'd like to see. You should be able to break your bugs out of their bottle when attacking with a weapon. Give them rarity. I noticed that they're all common. Critters which are bugs should be treated as such. They should be able to be caught with a net, put in a bottle, and added to your collection. Different bugs should appear in the day and in the night. Have bugs that not only spawn based on planet, but also mini-biomes and near specific areas, like near crops, flowers, trees, water, or underground in caves. Finding bugs in the game is really exciting, except there isn't much depth to it. So these suggestions are ways to make it more interesting.