It took me a while to find all of these. Alot of searching due to the fact that I don't like 95% of psytrance with guitars, So I have tracks with guitars, but I'm not to familar with them.
I hope you find what your looking for here. In no particular order.
Alien vs.The Cat-Space Jam (GMS rmx)
Talamasca-Party Generation
Skazi-Element
Skazi-GTR
Astrix-On Fire
Johann Bley-Standed (Return Forever rmx)
Psycraft-Night Drive
Hydraglyph-Abstraction
Tranan-Sensor
Talamasca-Action!!!
Tikal-Smokey Land
Safi Connection-Full On String
S.U.N. Project-Looking For You
The Psycotronic Love Commando-Evolution
Safi Connection & Liquid Phase-101 Sound Like Boom
Tube-Land Of Reason
Melicia-Massive Trance
Melicia-Dancing Up (DNA rmx)
C.O.N. Sequencer-Strange Planet
1200 Micrograms-Mescaline
1200 Micrograms-Rock To The Future
1200 Micrograms-The Mayans, Incas, Aztecs
Skazi-XTC
X-Noize-Anjuna Beach
Gataka vs. Patrik-Disco Jocky
Void-Machine
Zion vs. Contra-Wishes
Dark Nebula-Sea Of Turbulent Sound
Audialize-Roop Suhana
Talamasca-Magnetic Fields (Juvenile rmx)
Artists that tend to use alot of guitars: Skazi, 1200 Micrograms, GMS, S.U.N. Project, Electric Universe.
Check out Chemical Crew Records, their releases have guitar usage also.