Pinsir don't need an evo.
Now, lessee....
Banette (grass/ghost wooden marionette, w/ more speed (Name idea; Woodette (wood+marionette)))
Shedinja (ghost/bug bigger dead skin w/ better speed and 2 HP (Name idea; Shedzilla (shed+godzilla)))
Electrode (electric/fire bomb w/ Ultra Ball markings (Name idea; Ultratom (Ultra Ball+atom)))
Luvdisc (water/flying arrow like the kind Cupid shoots w/ better Attack and Drill Peck (Name idea; Arrodisc (Arrow+disc)))
Eevee (poison purple Jolteon-esque creature w/ cannon-like tail (Name idea; Toxeon (toxic+eon)))
Male Combee (bug/fighting bee w/ muscular arms, a stinger, and levitate (Name idea; Roughive (rough+hive)))
Drifblim (ghost/flying circus tent with huge cloud plume on head, and 4 Drifblim arm thingies, only bigger, and with claws; higher Attack (Name idea; Drifquee (drift+marquee)))
Pre-evos;
Seviper/Zangoose (poison/normal thing that has the rough body structure of a clefairy, but a snakelike tail, and tiny stubs for arms and legs. Evolves into Seviper if you have a Zangoose in the party (and not a Seviper), and into Zangoose if you have a Seviper in the party (and not a Zangoose), by level up. (Name idea; Infoe (infant+foe)))
Volbeat/Illumise (bug firefly built like Kricketot, evolves based on gender and happiness (Name idea; Voltini (volt+tiny)))
Pinsir/Heracross (bug type tiny beetle with one horn, with tiny spikes poking out near the tip. Looks almost like a fusion of Heracross and Pinsir, except it's green. Evolves into Pinsir if attack>defense at lv. 15, and into Heracross if defense>attack at lv. 15. If both stats are equal at lv. 15, it evolves into some new Pokemon. (Name idea; Beetlby (beetle+baby)))