The world of cicadas, particularly the iconic greengrocer species in Australia, offers a fascinating insight into nature's wonders and the unique ways in which these creatures have captured the imagination of children and adults alike.
The Cicada Craze
Cicadas have long been a source of fascination, with their emergence from the underground world sparking a sense of wonder and curiosity. In Australia, the greengrocer cicada has become a beloved collectible, with its vibrant colors and catchy nicknames like the yellow Monday and masked devil. Imagine the excitement of children searching for these tiny treasures, their eyes scanning leafy gardens and parks for a glimpse of these miniature marvels.
A Life Underground
Most of a cicada's life is spent as a nymph, hidden beneath the earth. But when they emerge in late spring, they bring a burst of color and energy. These palm-sized creatures, about the size of an eraser, showcase a variety of morphs, each with its own unique appeal. It's no wonder that collecting them has become a beloved pastime, with even adults like Dom Yates, a Guardian reader, appreciating their joyful songs after years of underground solitude.
The Seven-Year Itch
Unlike their North American cousins, which emerge in a 17-year cycle, greengrocer cicadas follow a more frequent pattern, appearing en masse every seven years or so. The next big event is expected in 2027, so mark your calendars! During this time, the nymphs transform into adults, shedding their skins and growing wings, leaving behind exoskeletons that are prized finds for young collectors.
Acoustic Identities
Every cicada species has its own distinct sound, and the greengrocer is no exception. Dr. Lindsay Popple, an environmental consultant, describes their acoustic prowess. The males broadcast a continuous drone and a croaking pulse, using tymbals on either side of their bodies and amplifying the sound with their hollow abdomens. It's a spectacular display, especially when you consider that these tiny creatures can produce sounds as loud as a jet taking off, reaching volumes of up to 120 decibels, which is close to the pain threshold for human hearing.
A Spectacle of Sound
The greengrocer's song is a true spectacle. As Popple notes, "Close to them, it's like being near a jet taking off, it's really loud." And on those warm, summer mornings, they can start their symphony early, providing an unexpected alarm clock for some. But as Matteo, a 16-year-old Guardian reader, points out, "They're loud and gorgeous, and they climb trees and shout. What's not to love?" Indeed, the greengrocer's song is a testament to the beauty and power of nature.
A Closer Look
While their loudness is impressive, it's also a blessing in disguise. If you get too close, they'll stop singing, giving you a moment of peace and a chance to appreciate their intricate beauty up close. It's a reminder of the delicate balance in nature and the importance of respecting these creatures' space.
A Celebration of Invertebrates
The greengrocer cicada is just one of the many amazing invertebrates that deserve our attention and appreciation. From August 3-12, The Guardian will be celebrating the top 10 invertebrates of the year, so stay tuned and get ready to explore the incredible world of these often-overlooked creatures. Don't hesitate to share your thoughts and ideas by emailing environment.desk@theguardian.com with "Invertebrate" in the subject line.
So, the next time you hear the joyful song of a cicada, take a moment to appreciate the wonder of these tiny creatures and the impact they have on our world. It's a reminder of the beauty and diversity of nature, and the endless opportunities for exploration and discovery.
