A Black and Yellow Spider

I saw this spider accidentally. My husband and my father were fishing at that time, and I started to feel bored. Wandering around the fishing area, I saw this little guy on the fence.

I’m afraid of spider, but the fear isn’t as big as my fear to cockroach. As long as the spider is unmoved, I still can take pictures. But I must hold my breath for seconds, to ease my shaking hands, hehehe. This spider is a pretty one, right? Look at its abdomen!