I think that the disease could also be an interesting barrier to diplomacy on the Mosquito’s part. Maybe a tree of technology is devoted to help remedy this?
Maybe they would appear to be similar to Vermen to an outsider looking in, however, I imagine their society is a lot more uniform. I think that a singular Mosquito Person may be similar to a single Vermen in stature but with severely limited autonomy and individual problem solving. This results in a more organized society. This means only higher up administrative-level Mosquitoes have autonomy levels capable of making decisions and advanced problem solving abilities. This form of society could also brood a form of selflessness not only regarding their Mosquito People peers but regarding other races. Maybe their society is similar to that of bees or ants? With differing tiers or castes that are physically different and have their own roles.