Cicadas
Cicadas are fascinating insects known for their distinctive sound and unique life cycle. Here's a rundown:
Appearance:
- Cicadas are insects belonging to the order Hemiptera, suborder Auchenorrhyncha.
- They typically have large eyes and transparent, well-veined wings.
- Cicadas come in various colors depending on the species, including shades of green, brown, black, and combinations thereof.
- They have prominent membranous wings and are generally robust in appearance.
Life Cycle:
- Eggs: Cicadas start their life cycle as eggs laid in the branches of trees by adult females.
- Nymphs: When the eggs hatch, the immature cicadas, called nymphs, drop to the ground and burrow into the soil. They live underground for a period of years, feeding on root juices.
- Molting: After several years, depending on the species (some have 13 or 17-year cycles), the nymphs emerge from the ground as adults.
- Adult Stage: Once above ground, the nymphs molt into their adult form, shedding their exoskeleton. Adult cicadas live for a few weeks to a few months, depending on the species.
Sound:
- Male cicadas produce the loud buzzing or clicking sound that is associated with summer. They do this primarily to attract females.
- This sound is produced by specialized structures called tymbals, which are drum-like organs located on the sides of the abdomen.
- Each species of cicada has its own distinct sound, allowing individuals to recognize their own kind and avoid mating with other species.
Behavior:
- Cicadas are primarily active during the day and are known for their swarming behavior.
- They feed on the xylem fluids of plants, which they access through their specialized mouthparts.
- Despite their large size, cicadas are generally harmless to humans and animals, as they do not bite or sting.
Periodical Cicadas:
- Some species of cicadas, known as periodical cicadas, have unusually long life cycles of 13 or 17 years.
- These cicadas emerge in massive numbers, often synchronizing their emergence to overwhelm predators.
- Periodical cicadas are primarily found in eastern North America and are famous for their mass emergences, which can number in the millions or even billions
Similar pests: Cicada Killers