Cricket is about resonance with the world, finding harmonies and vibrations to uplift and raise the energy level. Cricket is a very mental animal, who flies and crawls. Connecting the body to the mind, like breath, and connecting the earth to the sky.
A white cricket – you usually see a black or brown one (black is more physical, brown is earth energy) is like a higher vibration of your normal cricket. It may be the “spirit cricket” who is the connection between all crickets, or the essence of “cricketness.”
WyldWeaver suggested that it might be a cave cricket – who is blind, but has other tools to navigate the darkness.
Another interpretation is that it is a newly moulted cricket, that hasn’t “toughened up” or darkened yet – a newly transformed cricket.