So it is a beautiful day today and I was burning up in my office so I decided to take a stroll through the woods bordering the parking lot. I found the perfect spot to plop my tookus and catch some rays. With my eyes closed I tuned into waves of sound making their way through my auditory canals. I heard the rustling of leaves, some creaking dead snags, and then a sort of soft purring sound followed by a couple seconds of silence followed by yet another purring sound. I opened my eyes and located a spider (which I later found to be the wolf spider). As I watched it I noticed that its front fangs would vibrate producing an audible purring sound. The few seconds of silence was due to it crawling quickly over to the next brown leaf. Once at rest it would vibrate its fangs thus producing a subsequent purring sound. This went one for the next few minutes and I watched with curiosity. Back at my desk I discovered that this is a mating call. The vibrations produce sounds that is music to the female spider's ears. Low and behold when the spider saw this lady...the vibrations stopped...I guess I was not what he was looking for!I included the link below which has a sound clip of this purring sound. Enjoy! http://www.huffingtonpost.com/2015/05/26/spider-sex-sounds_n_7439752.html
