365Caws is now in its 14th year of publication, and was originally intended to end after 365 days. It has sometimes been difficult for me to find new material, particularly during the winter months, but now as I enter my own twilight years, I cannot guarantee that I will be able to provide daily posts. It is my hope that along the way I may have inspired someone to a greater curiosity about the natural world. If so, I can rest, content in the knowledge that my work here has been done.
Thursday, May 3, 2018
Concealment
Day 202: While walking around in my yard yesterday, I spotted a specimen of Misumena vatia on a dandelion, but my shadow fell across the flower as I knelt down to take a picture, startling the spider and sending it into concealment. I went out again today and on the same dandelion, saw what I presume to be the same spider, but once again, some vibration or fluctuation in the light alerted it to potential danger and it disappeared beneath the petals where it was out of sight from my eyes, but not from my lens. This species has often taken me by surprise when I've gathered ox-eye daisies (an invasive which should carry no guilt about picking) or other light-coloured flowers. It has a particular affinity for dandelions in western Washington and although its colouration is highly variable, the whitish-yellow form is arguably the most common. The pigmentation observed in any individual spider can change over the course of a few days, depending on the colour of the flower it inhabits.
Labels:
dandelion,
Goldenrod Crab Spider,
Misumena vatia,
yard
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