What was found
DURING TAKEOFF, AIRCRAFT SPEED SCALE AND GREEN ACCELERATION LINE WERE NOT PRESENT ON EITHER THE CAPTAIN OR F/O PFD'S, NO AIRSPEED INDICATION. INSTEAD "TAXI" WAS STILL DISPLAYED. THE CREW MADE THE DECISION TO ABORT TAKEOFF APPROXIMATELY BETWEEN 85-90 KTS. FOLLOWED POST FLIGHT AND TAXI PROCEDURES BACK TO THE GATE WITHOUT ANY OTHER FURTHER INCIDENT. FOUND INSECTS IN PITOT TUBES. PURGED PITOT STATIC SYS IAW AMM 24-11-00. 2. R & R STATIC RIGID LINE AT RT STATIC PORT IAW AMM 20-50-01.