Is there such a thing as a good aligned insectoid outsider?

[Malik Gyan Daumantas]

Or at the very least a non evil one?

[Bjørn Røyrvik]

I assume arachnoid counts as insectoid.
Can't think of any good ones, but there are a few neutral ones.

Formians are LN.
Planar/phase spiders are TN
Lim-lims are probably TN, considering they are just animals.

[WagnerSika]

D'ziriak

[zza ni]

well outsider idk.
but from a far away planet (and one that got destroyed so visiting other planets and planes is the way you meet them) there is the player-able race of Yaddithian. as such they can be of any alignment.

[Mysterious Stranger]

I found a couple of outsiders that are at least have some insect. Below is what I found and their alignments.

Elohim (N), Empusa (CN), Irii (LN or CN), Vendenopterix (CN), Watcher (LN).

[Sysryke]

I'm not in a spot where I can access it right away, but there are several insectoid races in the expanded race options. I think at least a few are paizo official, more are 3rd party if you are open to such a thing. Any race or creature that isn't native to the primary plane you start your campaign in is an outsider. I know some people don't like the site, but just for quick reference, there are a lot of options on D20PFSRD

I'm particularly fond of Entobians (sp?)

[Mysterious Stranger]

An outsider is at least partially composed of the essence (but not necessarily the material) of some plane other than the Material Plane. Some creatures start out as some other type and become outsiders when they attain a higher (or lower) state of spiritual existence. An outsider has the following features.

Extraplanar Subtype: This subtype is applied to any creature when it is on a plane other than its native plane. A creature that travels the planes can gain or lose this subtype as it goes from plane to plane. Monster entries assume that encounters with creatures take place on the Material Plane, and every creature whose native plane is not the Material Plane has the extraplanar subtype (but would not have it when on its home plane). Every extraplanar creature in this book has a home plane mentioned in its description. Creatures not labeled as extraplanar are natives of the Material Plane, and they gain the extraplanar subtype if they leave the Material Plane. No creature has the extraplanar subtype when it is on a transitive plane, such as the Astral Plane, the Ethereal Plane, or the Plane of Shadow.

That is incorrect. A race that is not native to a plane is extraplanar not outsider.

[Melkiador]

If gods count, Khepri is a neutral good dung beetle.