Fairy Banshees are a small subspisies of banshees that are around 3 inches in hight. Like Banshees they see threw echolocation. They normaly travel in swarms ranging from 10 to several thousands.
For the most part they can be found in the Forest of whispers although they have been seen other places. From a distance Fairy Banshees are often mistaken for actual Fairies so thats how they got thier name.
For the most part Fairy Banshees eat insects and fruit. Even though they are perfectly capable of swarming and eating other predators with thier unusually powerful jaws they just don't seem to do it, Although they will do this with larger insects such as tonorions which seem to be one of thier favorite prey, Large groups are often seen swarming the large predators and devouring them until there is nothing left.
Fairy Banshees seem to be a favorite prey for nekos much like Neera's, It is not uncommon to see a large group of Neko's out at night hunting them, although even though Fairy Banshees won't attack them it can still be very risky for the neko hunting party as real Fairies often hide in the swarms waiting for such a hunting party to come along.
Fairy Banshees get along well with Fairies and they often help each other out, Fairy banshees take care on insects and Fairies try to protect them from everything else.

Legend

It is believed that deep in the Fairy kingdom there is a Queen Fairy Banshee that roughly stands at 3 feet and commands a gigantic swarm ranging in the tens of thousands, It is belived that this queen is a loyal servant of the Fairy Queen Nemyra.

What does that means about Humans?

They sound more like fairies than a sub-type of harpies actually.

I probably should have gone into thier discription a little more Basically other then their size they look just like a normal Banshee. They don't really have any kind of special magic that they use basically they just rely on numbers.

hmmmm I really like the idea of a natural anti bug companion for the fairies.... but this really inst in the right category at all so its getting moved^^;

oh! i see what you mean now.... so its a sub sub species? hmmm well I think what makes a harpie banshee, a harpie banshee is its bat like features... from what your describing there more like fairies than anything else... unless i got the descrip wrong they arn't half person half bird/bat which is what a harpie is.

its fair to say they are both banshee like and fairy like, but they don't seem to be ether, so i think its probably better in the general new ideas category.

Yea I sort of rushed my discription because I had to get ready for work.^^;

Basically they are just really small Banshees, looking almost exactly like them.

Really thier size is the only thing they have in common with fairies, (even though fairies have no set size) sence Fairies seem to stay in smaller sizes for the most part or at least what I've noticed in stories.

Not sure if I made it clear before, but I like this idea; it definitely needs further development (since there isn't a whole lot to it right now other than the basic concept), but it is a good idea.

My suggestions would be to go into greater depth on their physical appearance, and make it clearer that they actually are a subspecies of Harpy, and not related to Fairies.

Also, you've mentioned that they eat insects, and live near Fairies, so you don't really need to elaborate too much more on their diet or habitat... but some more detail on their behavior and outlook would be nice. How do they think, how do they react towards races other than Fairies, etc. How is their behavior similar to that of other Harpenoid species, and how does it differ? These are the kind of questions it would be good to consider, and come up with answers for; just writing out the answers might give you ideas and go a long way towards fleshing out these ladies.

I know you haven't gotten a whole lot of feedback on some of your other ideas (it just happens, sometimes), so I'm hoping these suggestions are helpful.