Lucusta silens   scale in cms CLASS - Insecta ORDER - Orthoptera FAMILY - Acrididae GENUS/SPECIES - Lucusta silens ROCK UNIT - Parachute Creek Member, Green River Formation AGE - Eocene Epoch (48 million years old)d LOCALITY - Garfield Co., Colorado, USA Grasshoppers are not aquatic, but this one is preserved in an ancient lake deposit. The grasshopper was washed into the lake, probably during a flood. The missing hind legs may have been broken off during transport of the body. PRI 40776