As for future tweaking, I'd love if I could replace all the non-insects with insect creatures, but unfortunately there arn't any that really lend themselves to ramp. If only there was an insect that did something like Birds of Paradise or Elvish Mystic, even Lotus Cobra. If only they stopped printing a bunch of stupid human guys all the time and made what people REALLY love!! Seriously there's like three elves that all do the same thing, why can't there be a fly or a cicada you tap to add ??? Either way, for now, those boring guys will serve the wasp.
That aside, I'm interested in adding Natural Order, since it'll allow a turn 2 Grist AND a turn 3 Hornet Queen or Giant Adephage... unfortunately it's one of the more price-y cards, so... maybe later.
Also I can't believe I havn't heard of Ignoble Hierarch until real recently. It's basically just a straight upgrade from Elvish Mystic. That's another one I'm gonna need to get my tarsi on.
It also occured to me to add Xira, the Golden Sting, since she's a pretty awesome wasp lady with a lovely ability that mimics what real parasitoid wasps do. I've always been aware of this card, but kept thinking "well she requires , so how would I play her?" But then I realized that Birds of Paradise, Ignoble Hierarch, Somberwald Sage and Sporocyst (coupled with a single Mountain) can easily ensure her summoning! Those are enough options to permit a single red symbol in this deck, I believe.
One more thing I'm considering is Blex, Vexing Pest
. Not really that thematically appropriate, but with all the insects it does help out quite nicely. There's very few cards that directly interact with insects as a creature type, and Blex is definitely one of the most useful ones.
It'll be tough fitting all this stuff in one deck, but I'm dedicated to making the ultimate wasp deck!!