There is so much music with an emphasis on bass these days, I just lump it all into what I call bass music. dubstep, glitch hop, stuff like pretty lights, daedlus, bassnectar etc...
Techno is a pretty specific genre, I would describe it as having emphasis on drum and rhythym patterns, with little or no melodies or breakdowns, repeating patterns that are manipulated with filters and what not, and like daddy screw said a 4 to the floor beat.