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August 13, 2017

How long do cicadas live?

Filed under: FAQs,Life Cycle — Dan @ 12:09 pm

The most famous cicadas — North American periodical cicadas — typically live 17 or 13 years. These cicadas only represent about 0.2% of all cicadas, most of which live shorter lives.

Magicicada_septendecim_Jim_Thorpe
Magicicada septendecim cicadas live 17 years.

Cicada Life Spans:

Cicada life spans (life cycle length) vary from one year, to as many as 21, depending on the species. Cicadas like Myopsalta crucifera and Parnkalla muelleri of Australia have one year life cycles6. Magicicada septendecim, M. cassini and M. septendecula, of the United States, can live as long as 21 years (read What are Stragglers?).

Some life spans for well known cicadas:

    North America:

  • Magicicada septendecim, M. cassini and M. septendecula: 13 to 2210, but typically 17.
  • Magicicada tredecim, M. neotredecim, M. tredecassini, and M. tredecula: 9 to 17, but typically 13.
  • Diceroprocta apache: 2-5, but typically 3-4 years1.
  • Tibicen genera: 2-7 years2.
  • Okanagana rimosa: 9 years3.
  • Okanagana synodica: possibly 17 to 19 years.5
    Australia:

  • Cyclochila australasiae: 6-7. 6
    India:

  • Chremistica ribhoi: 4. 7
    Japan:

  • Hyalessa maculaticollis: 2-5, but typically 3. 8
    New Zealand:

  • Amphipsalta zealandica: 3-4, but typically 4. 9

Table 3 of the paper Genome expansion via lineage splitting and genome reduction in the cicada endosymbiont Hodgkinia (Campbell et al, 2015) contains a large table of cicada life cycle lengths.

Annual, Periodical, or Protoperiodical

Most cicadas appear on an Annual basis, meaning that every year adults will appear.

It is common for many species to be Protoperiodical as well, meaning that some years will see an abundance of adults, while other years there will be a limited number of that species. Okanagana rimosa, in particular, are Protoperiodical 9.

Some species, like the Magicicada species and Chremistica ribhoi appear on a Periodical basis, meaning that after a specific number of years almost all adults of the species will emerge.

Life Expectancy

Although many cicadas have long life cycles, not many of them make it to adulthood. Nymphal mortality of Magicicada can reach 98% in the first 2 years 4. Imagine if all those cicadas made it to adulthood. 50 times more cicadas! Unfortunately, that isn’t the case.

Magicicada is just one genus of cicadas (representing about 0.2% of all species), but I have to think that most cicadas, regardless of species, will never make it to adulthood.

How long do cicadas live as adults?

Short answer: about a month.

How long a cicada lives as an adult depends on the species, but the answer could be from a matter of seconds, if the cicada dies due to predation or an accident, to more than a month. Cicadas are primarily subterranean plant (mostly tree) parasites, and only enter their above-ground, adult form to mate/reproduce.

A particular species of cicada — like Neotibicen tibicen tibicen — might appear to last for two or three months, because their song can be heard for that length of time, but that’s likely because they emerge over the course of a month, not all on the same day, extending length of time their species is present above ground.

No matter what the species, adult cicadas perish within a season or two, and do not live multiple years in their adult form, like other types of insects. They won’t try to move inside your house once winter approaches to find warmth and shelter.

References

1 Aaron R. Ellingson, Douglas C. Andersen and Boris C. Kondratieff (2002) Observations of the Larval Stages of Diceroprocta apache Davis (Homoptera: Tibicinidae), , Journal of the Kansas Entomological Society, Vol. 75, No. 4, pp. 283-289. Link.
2 Richard Fox, Tibicen spp, (2001) http://lanwebs.lander.edu/faculty/rsfox/invertebrates/tibicen.html
3 Soper RS, Delyzer AJ, & Smith LFR (1976) The genus Massospora entomopathogenic for cicadas. Part II. Biology of Massospora levispora and its host Okanagana rimosa, with notes on Massospora cicadina and the periodical cicadas. Ann. Entomol. Soc. Am. 69(1):89-95.
4 Karban R. 1984. Opposite density effects of nymphal and adult mortality for periodical cicadas. Ecology 65: 1656-61.
5 Campbell et al. 10.1073/pnas.1421386112.
6 Moulds MS (1990) Australian Cicadas (New South Wales University Press, Kensington, NSW, Australia).
7 Hajong SR & Yaakop S (2013) Chremistica ribhoi sp. n. (Hemiptera: Cicadidae) from North-East India and its mass emergence. Zootaxa 3702(5):493.
8 Logan DP, Rowe CA, & Maher BJ (2014) Life history of chorus cicada, an endemic pest of kiwifruit (Cicadidae: Homoptera). New Zealand Entomologist:1-11.
9 Kathy Williams & Chris Simon, The Ecology, Behavior, and Evolution of Periodical Cicadas, (1995), Annu.Rev. Entomol. 40:269-95.
10 David C. Marshall, John R. Cooley, and Kathy Hill, Developmental Plasticity of Life-Cycle Length in Thirteen-Year Periodical Cicadas (Hemiptera: Cicadidae), Ann. Entomol. Soc. Am. 104(3): 443Ð450 (2011)

January 11, 2017

All the cicada FAQs

Filed under: FAQs — Dan @ 1:01 am

FAQs

This is a list of all the cicada “frequently asked questions” on our site.

Cicada Biology

  1. Can Cicadas See?
  2. Do cicadas pee?
  3. Do cicadas stink?
  4. How many types of cicadas are there?
  5. How to tell if a Cicada is a Male or Female?
  6. Is there such thing as an albino cicada?
  7. Why do some cicadas have shriveled up or damaged wings?

Cicada Sounds, Singing, “Noise”

  1. Do cicadas sing at night?
  2. How do cicadas make sounds / noise?
  3. Which cicada is the loudest?
  4. When do cicadas sing?

Cicada Behavior

  1. Do cicadas bite or sting?
  2. What do cicadas do?
  3. Are cicadas attracted to the sound of lawnmowers and other machinery?
  4. How long do cicadas live?
  5. What do Cicadas Eat?
  6. What is the purpose of cicadas?
  7. Where do cicadas live?

Cicada Predators aka What Eats Cicadas

  1. 10 Facts about Cicada Killer Wasps
  2. Can pets or other animals sense cicadas below ground?
  3. What Eats Cicadas?

Studying or Observing Cicadas

  1. How do I photograph cicadas at night?
  2. Is it possible to raise cicadas?
  3. Keeping cicadas for a short period of time
  4. Where can I buy cicadas online?

Human / Cicada Interaction

  1. How do you pronounce Cicada?
  2. How to say in different languages?
  3. What do cicadas symbolize?
  4. What is the root of the word cicada?
  5. What Might Cause Cicadas to go Extinct?

17 & 13 Year / Magicicada / Periodical / “Locusts”:

  1. Can you see letters like W & P on a cicada’s wings?
  2. Did Someone Offer a Reward for White or Blue-eyed Cicadas?
  3. How can I prevent cicadas from damaging my plants?
  4. How Long Does a Periodical Cicada Emergence Last?
  5. What are Broods?
  6. What are Stragglers?
  7. What is Predator Satiation?
  8. Are cicadas locusts?
  9. Which fungus attacks Magicicadas?
  10. Why do Magicicada stay underground for 13 or 17 years?
  11. Will the cicadas kill my trees, shrubs or flowers?

May 21, 2016

Why do some cicadas have shriveled up or damaged wings?

Filed under: Cicada Anatomy,FAQs — Dan @ 5:00 pm

You might notice that some cicadas have shriveled-up or otherwise damaged wings. Most of the time, wings become damaged during the molting process (ecdysis), specifically while their wings harden (sclerotize). Their wings, and body, are most vulnerable when they are still soft.

Hang Time

Some reasons why a cicadas’s wings might not get the chance to inflate and harden:

  • If a cicada molts and its wings are not able to hang downward they won’t inflate with fluids and form properly.
  • Cicadas often trample each other in the rush to find a place on a tree to molt.
  • Harsh weather, like wind and rain, knock them to the ground or bend their wings when they’re soft.
  • Malnutrition.
  • Physical weakness or defects.
  • Fungi infection.
  • Predator attacks.


Stuck

Just 10 Magicicada (American periodical cicadas) generations ago, the U.S. was mostly forest. Back then it was easy to find a vertical surface to molt on, or a plant stem to hang from. Today most forests have been replaced with agriculture, buildings, lawns, roads, sidewalks, parking lots, etcetera — so it has become increasingly difficult for periodical cicadas to find a good place to hang.

Magicicada can afford to lose a large number of their population due to wing malformations and other critical defects, because there are simply so many of them — this loss falls in line with their predator satiation strategy.

However, if Magicicada lose too much habitat, they will go extinct (brood XI went extinct about 60 years ago). Lawns, roads, sidewalks, and other features of our human habitat create surfaces that are insalubrious for cicada molting.


In the video below, you will see a cicada molting. Note that its wings are able to hang downward and inflate to form properly shaped wings. If the cicada tried to molt on a vertical surface, the odds are its wings would be crumpled.


In the image below, there is a Neotibicen tibicen (not a periodical cicada) that sclerotized (hardened) before completely shedding its nymphal skin.

Male Tibicen tibicen (crippled)
Although adorable, this Neotibicen will never sing or fly.

May 19, 2016

Keeping cicadas for a short period of time

Filed under: FAQs — Dan @ 12:44 pm

We previously discussed raising cicadas from egg to adult. How about keeping adult cicadas for an hour, a day or more?

If you plan on keeping cicadas for a few hours, many containers will do. Just keep them in the shade, make sure the container is ventilated (has holes so air can flow in and out), and add a moist paper towel for a source of water & moisture.

I prefer to use Butterly Pavilions, which are small, expandable, portable enclosures. You can reuse them for other insects once the cicadas have gone.

Any Longer than a few hours, and you should make sure the cicadas have a source of fluids — the best source is a tree branch.

Temporary Cicada Enclosure

Cicada researcher & enthusiast Elias Bonaros shared his secrets for keeping adult cicadas alive. His record is 28 days for a Neotibicen auletes.

I usually used oak branches for above two species. I placed them into a butterfly pavilion. I used a small spring water bottle into the enclosure and placed the end of the branch into it. Be sure to place some paper towel or cotton in the open spaces at the mouth of the bottle because I had some specimens walk into the bottle and drown! Our beloved cicadas are not too bright.

I have never tried the sapling although that would seem the best as the tree can generate its own xylem pressure.

I change the branch every day vs every other day. Every third day is not good.

Takes a lot of work.

Another idea is to surround a branch of a live tree with netting, and place them in that — the same type of netting you would use to keep them off a branch will keep them on it.

The advantage of a Butterfly Pavilion is you can keep the cicada inside your home or lab.


May 18, 2016

Is it possible to raise cicadas?

Filed under: FAQs,Life Cycle — Dan @ 7:19 am

Is it possible to raise cicadas? It is, but it requires patience and commitment.

Potted Plants

The master of raising cicadas is a Japanese amateur cicada biologist named Shougo Murayama. Shougo has raised more than 1,000 cicadas of six or more species from eggs to adults in his backyard by growing them in see-through pots in clay soil with Aloe or Yucca plants. You can visit his website for more information (tip: use Firefox for better display of the text & then cut and paste it into Google translate). According to Shougo Murayama’s website, the cicadas he raised had 2 to 5 year life cycles.

David Logan of New Zealand successfully raised Kikihia ocharina cicadas from egg to adult. The details of this study can be found in the article Nymphal development and lifecycle length of Kikihia ocharina from 2006. It is important to note that K. ocharina have a short 3 year lifespan, and Logan raised the nymphs in pots with live plants. Logan’s study includes a section about care of the cicada’s egg before they hatch; hatching can take months, so this part is important. Logan placed the twig with eggs in a vial which he blocked with a moist material.

Logan conducted another study in 2014, this time with Amphipsalta zelandica (Boisduval), proving his methods work.

Richard Karban raised 15-year-old Magicicada nymphs to adulthood using peach trees as hosts for his study of how periodical cicadas keep track of time. This is not quite the same thing as raising cicadas from eggs, but it shows they can be raised outside of their natural habitat. Karban observed a high rate of mortality from the difficult process of transferring cicadas to new roots.

Most people who visit this website (Cicada Mania) are looking for American periodical cicada (Magicicada) information. Raising Magicicada would be quite a commitment. You’ll need an environment that mimics the Magicicada’s natural habitat, including the right soil & host plans, and you’ll need to maintain for at least 13 years (for the 13 year species, 17 years for the 17).

If you’re serious and live in the United States, a cicada with a short lifecycle like Diceroprocta apache will require less of a commitment.

Should you decide to raise cicadas, be sure to read the resources mentioned in this article, and consider the following tips:

  1. Expect 95% of the cicadas to die
  2. Care of the eggs is critical
  3. Use host plants and soil preferred by the species
  4. Use a species that has a short life cycle
  5. Use see-through pots so you can see the cicadas as they develop

I might consider doing this experiment myself, but I would definitely choose a species with a short life-span. I might place some grasses in the pot, in addition to a larger host plant, to give 1st instar nymphs more tiny roots to choose from. I have a (perhaps irrational) fear of a house guest dumping a cup off coffee into my cicada host plant and killing the entire experiment.

Thanks to Chris Simon of The Simon Lab at UConn for pointing me to many of these references.

References:

Logan, DP. 2006. Nymphal development and lifecycle length of Kikihia ocharina (Walker)(Homopetera:Cicadidae). The Weta, 31:12-22.

Logan, DP, Rowe CA, Maher BJ. 2014. Life history of chorus cicada, an endemic pest of Kiwifruit (Homopetera:Cicadidae). New Zealand Entomologist. 37:2:96-102.

Karban, R, Black CA, Weinbaum SA. 2000. How 17-year cicadas keep track of time. Ecology Letters. 3: 253-256.

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