Evocation is based off of earth(which contains magnetism), water, air(including lightning), fire and spirt(raw willpower). Most evocations you can think of would come under those. There's a great degree of freedom and leeway with this model though. Thaumaturgy is a bigger beast and either falls under technical specialties e.g. divination, summoning and binding, wards, transportation, conjuration or thematic specialties e.g. diablomancy. which encompasses elements of all the technical specialities but tuned specifically towards demons. e.g a wards to specifically keep out demons, divining the location of demons(or perhaps telling if someone is possessed) summonding and binding speaks for itself. I can give a complete list from the books when i get home + a few others i have invented but they really did cover a lot of ground in the RPG