I'd make the first warrior squad just like your second one exept add wings to the second one and +1 Enhanced Senses to both squads. Move these up with your Termagaunts and Hormagaunts for Synapse.
Move the Zoanthrope for Synapse for all your gaunts.
I'd take out Scything Talons for Venom Cannon.
I personally don't like Biovore's but thats a personal preference. If you want it then keep it but i'd take it out for spending points in other areas.
These are good but your Genestealers are a little low on numbers. If you took out the Biovore i'd spend the points on beafing the genestealers.
Ben