I have a huge backlog of postable photos from my recent Bolivia and Peru tours. Here's a tiny sample of a particularly attractive one to keep this blog active.
Tiger Beetles (Cicindelinae) are one of the many subfamilies of the ground beetle family, Carabidae. Despite being just one of many subfamilies of beetles, it's an incomprehensibly diverse order of insects. In North America alone there are 109 species of tiger beetles, and more than 2000 worldwide. Almost every insect group is more diverse in the tropics, but it's surprising how rarely I come across tiger beetles on my travels in South America. And even rarer yet that one poses long enough for me to photograph it.
This is Odontocheila cayennensis, the Cayenne Forest Tiger Beetle.
Luckily, I know one of the world's foremost authorities on tiger beetles. David Pearson lives here in Arizona and is also an avid birder. We bump into each other occasionally while birding here and were roomates for a week in Gambell, Alaska a couple years ago when I was cooking for the WINGS tour he was a participant on. So whenever I come across a tiger beetle, off I send the photo to him. He also noticed the red mites on its thorax, which in the field I mistook for red pigmentation. They're apparently not parasitic, merely hitching a ride. This sort of commensalism is called phoresy.
A few years ago in Bolivia I met some researchers who were specifically studying a group of tiger beetles that prey solely upon dung beetles in Amazonian rainforests. To find their quarry, they had to first attract the dung beetles with traps. I won't go into the details as to how they actually did this, but perhaps you can fill in the gaps if I mention that it involved the cooperation of the tourists staying at that lodge, as well as a well-paid volunteer.