Is one of the small, almost colorless crickets of the genus Œcanthus, specifically the snowy cricket (Œ. niveus), whose two-syllabled rhythmic night-song is one of the most familiar summer noises in the Yucatan. It is often seen as a clear brown color. When many crickets are singing at once you can hear a long whistle that seems to continue in the early evening and again in the morning at warm humid times. This song varies greatly in pitch and rapidity according to the temperature and other conditions. Those who have studied them say you can tell the temperature and humidity by the tree cricket whistle.