Stoneflies are insects that like to be cold.  They often live in fast flowing, mountain streams and are great indicators of water quality.  Needless to say, they’re a little hard to find in southern Arizona!  In fact, you have to go up in elevation quite a ways to find them during most parts of the year.  This is the closest place where I consistently find them, Mt. Lemmon:

Mt. Lemmon

Sometimes it’s hard to believe you’re still in a desert up on top of the mountain!  Trees that are more than 15 feet tall, water, bright vivid greens – it’s a whole different world!

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