In the Midwestern United States, where I've spent most of my life, each August produces a
symphony cacophony by insects known as cicadae. One of the little buggers is shown in the photo, below. Cicadae are the adult form of the nymphal June Bug - well, that's what the nymphal critters are called in these parts!
"Tibicen linnei" by Bruce Marlin - Own work http://www.cirrusimage.com/homoptera_cicada_T_linnei.htm. Licensed under CC BY-SA 2.5 via Wikimedia Commons.
Just now, we are being invaded by species of cicadae that are periodic. As I was doing my early-morning yard work, today, I saw (and heard) hundreds of them. I had a hard time photographing them as my "good" camera has no lens capable of close-ups. My little camera has close-up capability, but I can't really tell where it is focusing and I cannot manually focus it. Excuses aside, here are the best photos of the lot showing a cicada on an elm leaf, another in the grass. Most of the cicadas that I saw were on cilantro - but - those photos were focused on the cilantro leaves instead of on the insects.
Note that in my opening sentence, I wrote of hearing cicadas in August - during the Dog Days of Summer. It seems weird to be hearing them in June!
More on Cicadae
Wikipedia has a great write-up on the insect that includes a wonderful series of photos showing their life cycle. Text includes the couple of paragraphs, below.
Cicadas live underground as nymphs for most of their lives, at depths ranging from about 30 centimetres (0.98 ft) down to 2.5 metres (8.2 ft). The nymphs feed on xylem sap from roots and have strong front legs for digging.
In the final nymphal instar, they construct an exit tunnel to the surface and emerge. They then molt (shed their skins) on a nearby plant for the last time and emerge as adults. The exuvia, or abandoned exoskeleton, remains, still clinging to the bark of trees.