### animal | arthropod | insect:

Cicada
* All cicadas leave behind an exuvium of the final nymphal instar once successfully emerged.
* Most cicadas are larvae a much shorter period of time.
* Most cicadas begin life
  - secret life
* Most cicadas emerge as delicate insects
  - in summer
* Most cicadas have a pair of tymbals or domed, drum-like organs on the sides of the abdomen
  - auditory organs
  - clear wings
  - defense mechanisms
  - development
  - eyes
  - lifespans
  - ranges
  - transparent wings
  - unusual defense mechanisms
  - live in areas
  - make sound
  - produce sound
* Some cicadas become adults.
* Some cicadas cause damage
  - minor damage
  - emerge in nights
* Some cicadas enter nymph stages
  - feed on plants
* Some cicadas have fluid
  - katydids
  - strategies
* Some cicadas live in states
  - up to months
* Some cicadas make meals
  - tasty meals
  - resemble insects
  - serve as food
  - sit in grass
* Some cicadas use chirp sound
  - distinct sound
  * live in temperate to tropical climates where their large size and unique sound makes them well known. Cicadas are often colloquially called locusts, although they are unrelated to true locusts, which are a kind of grasshopper. Cicadas are related to leafhoppers and spittlebugs
* are active underground, tunneling and feeding
  - animals
  - big and heavy
  - common insects, more often heard than seen since the majority are aboreal
  - harmless, though they're big enough to startle humans
  - herbivores, as are root maggots and mole crickets
  - large, stout insects
  - like people, some are smarter than others
  - mainly warm-temperate to tropical in habitat
* are medium to large insects with long, transparent wings held peaked over the body at rest
  - notorious singers
  - parasites
* are the largest insects in their order and are closely related to aphids and scale insects
  - longest-lived insects in North America
  - most efficient and loudest sound-producing insects in existence
  - usually green with red and black markings
  - to call during the day, katydids at night
* belong to a completely different insect order from locusts
  - the group of insects called homopterans
* breathe through apertures along the side of their body called spiracles.
* do little if any injury while feeding on plants.
* emerge in huge groups, numbering millions of insects
* exist on every continent but Antarctica.
* feed by piercing the surface of plants with their mouth stylets
  - on juice
* have auditory organs
  - chunky bodies and bulging eyes
  - cyclic populations, so insect numbers can vary widely from one year to the next
  - large, membranous forewings which easily extend beyond their abdomen
  - plasma membranes
  - quill feathers
* live for weeks
  - most of their lives as nymphs underground
  - mostly in warm areas
* make music a sharp scraping sound
  - their living place in the cool places on earth
* often trample each other in the rush to find a place on a tree to molt.
* produce noise in their stomach with tymbals
* serve an important role in their ecosystem.
* shed shells
  - skin
* sing in the trees and lizards scamper out of the way.
* spend most of their lives sucking juice from the roots of trees.
* spend the majority of their life as larvae underground feeding on the roots of trees
  - lives underground
* think the sounds made by power tools and lawn maintenance equipment are made by cicadas.
* use their mouth to suck sap.

### animal | arthropod | insect | cicada:

Annual cicada
* Most annual cicadas emerge in summer.
* are different from periodical cicadas
  - large and robust
  - larger than periodical cicadas, averaging about two inches in length

Female cicada
* Most female cicadas have auditory organs
  - make sound
* die after laying eggs.