<p>Yes, they both refer to cicada.</p>

<p>Most people use 知了 in both oral and written forms in mainland China. People almost never use 蝉 when they speak.</p>

<p>The reason cicada is called 知了 is because they make the noises which sound like they are saying (zhī liǎo... zhī liǎo... zhī liǎo...). Therefore, 知了 is also used to describe the sound cicada makes.</p>

<p>I'm not sure if one is more archaic than the other. As the word 知了 was used in classic Chinese literature 《月令七十二候集解》, which was written by 吳澄 in 元 dynasty (AD 1271–1368)</p>

<blockquote>
  <p>蜩，蟬之大而黑色者，蜣螂脫殼而成，雄者能鳴，雌者無聲，今俗稱<strong>知了</strong>是也。</p>
</blockquote>

CC BY-SA 3.0
2014-03-02T11:20:53.307Z
知了 is widely accepted but not always. In Cantonese, we still use 蟬. And 蟬 is the formal name of this specie, so you should use this in science discussion.
Earth Engine
CC BY-SA 3.0
2011-12-15T10:38:05.450Z
2011-12-15T10:38:05.450Z
StarCub
<p>I agree that both 蝉 and 知了 refer to cicada, but I don't think people will speak 知了 across China. Here, in Chengdu ,people don't say 知了,but 蝉子.However， 知了is a mandarin word, so an educated man can understand if you say it.</p>

<p>Some names for plants and animals vary from one place to another. One good exmple I would like to take is the "corn"，玉米 in mandarin. In the areas near Chengdu, people would say:"苞谷" or “玉麦", and in the city of Nanjing, people would say “苞芦".</p>

CC BY-SA 3.0
2011-12-15T11:09:00.263Z
2011-12-15T11:09:00.263Z
Huang
<p>I think 知了 is based on the sound a cicada makes (aka onomatopoeia), but both are reasonable terms to call a cicada. I don't think one is more right or better than another.</p>

<p><a href="http://www.nciku.com/search/zh/detail/%E7%9F%A5%E4%BA%86/55114" rel="nofollow">This page on Nciku</a> has a little more information.</p>

CC BY-SA 3.0
2011-12-15T10:36:08.010Z
2011-12-15T10:36:08.010Z
Ciaocibai
<p>both of them are cicada</p>

<p>蝉 is used as it's formal name， and it's more archaic</p>

<p>知了 is used more in spoken or literature.</p>

CC BY-SA 3.0
2011-12-15T12:07:54.243Z
2011-12-15T12:07:54.243Z
Ryk
<p>What are the main differences between 蝉 (chán) and 知了 (zhīliǎo) both meaning cicada.</p>

<p>Do they both refer to the same species?</p>

<p>Will either saying be understood by the majority of native speakers?</p>

<p>Is there a particular region where one is more common?</p>

<p>Is one archaic?</p>

<word-choice>
Differences between 蝉 and 知了?
# Differences between 蝉 and 知了?

(Asked by: username_0 on 2011-12-15)

What are the main differences between 蝉 (chán) and 知了 (zhīliǎo) both meaning cicada.

Do they both refer to the same species?

Will either saying be understood by the majority of native speakers?

Is there a particular region where one is more common?

Is one archaic?

**Tags:** word-choice

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## 4 answers

### Answer by username_1 on 2011-12-15. Score: 3 | Accepted answer

Yes, they both refer to cicada.

Most people use 知了 in both oral and written forms in mainland China. People almost never use 蝉 when they speak.

The reason cicada is called 知了 is because they make the noises which sound like they are saying (zhī liǎo... zhī liǎo... zhī liǎo...). Therefore, 知了 is also used to describe the sound cicada makes.

I'm not sure if one is more archaic than the other. As the word 知了 was used in classic Chinese literature 《月令七十二候集解》, which was written by 吳澄 in 元 dynasty (AD 1271–1368)

> 蜩，蟬之大而黑色者，蜣螂脫殼而成，雄者能鳴，雌者無聲，今俗稱**知了**是也。

> **Comments:**
> **username_2**: 知了 is widely accepted but not always. In Cantonese, we still use 蟬. And 蟬 is the formal name of this specie, so you should use this in science discussion.  

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### Answer by username_3 on 2011-12-15. Score: 3

I agree that both 蝉 and 知了 refer to cicada, but I don't think people will speak 知了 across China. Here, in Chengdu ,people don't say 知了,but 蝉子.However， 知了is a mandarin word, so an educated man can understand if you say it.

Some names for plants and animals vary from one place to another. One good exmple I would like to take is the "corn"，玉米 in mandarin. In the areas near Chengdu, people would say:"苞谷" or “玉麦", and in the city of Nanjing, people would say “苞芦".


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### Answer by username_4 on 2011-12-15. Score: 1

I think 知了 is based on the sound a cicada makes (aka onomatopoeia), but both are reasonable terms to call a cicada. I don't think one is more right or better than another.

[This page on Nciku](http://www.nciku.com/search/zh/detail/%E7%9F%A5%E4%BA%86/55114) has a little more information.


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### Answer by username_5 on 2011-12-15. Score: 1

both of them are cicada

蝉 is used as it's formal name， and it's more archaic

知了 is used more in spoken or literature.


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