The balcony observer's 313th report- Antmimicking spider (Myrmarachne formosicola) 擬台灣蟻蛛 Part 1

by Tsao T-F May. 24, 2021 282 views

I initially thought it was just a big stupid ant who dared to wander around the spider's nest. Was it not afraid of being eaten by spiders? I didn't expect it to sense my camera lens close to it, and it turned around and stared at me with big dark eyes with sunglasses. I suddenly realized...Aha! You are not an ant, you are a spider that looks like an ant. Your name is "Antmimicking spider".

我本來以為那不過是一隻長得特別大隻的笨螞蟻,膽敢在蜘蛛的巢穴口徘徊。牠不怕被蜘蛛吃掉嗎?沒想到牠居然感覺到我的相機鏡頭靠近牠,還轉過身以帶著墨鏡的大黑眼睛盯著我看。我突然醒悟了…啊哈!你不是螞蟻,你是長得像螞蟻的蜘蛛。你的名字就叫"蟻蛛"。

A spider's nest was found between two leaves of Yangmei (Morella rubra) at that morning on my balcony in Taichung, Taiwan. Although I have never seen this kind of house, why do I know that it must be built by a spider? 那天早上在陽台的兩片葉子(楊梅)之間發現一個蜘蛛的窩?雖然我不曾看過這種房子,但為什麼我知道它一定是蜘蛛蓋的呢?

A spider's nest was found between two leaves of Yangmei (Morella rubra) at that morning on my balcony in Taichung, Taiwan. Although I have never seen this kind of house, why do I know that it must be built by a spider? 那天早上在陽台的兩片葉子(楊梅)之間發現一個蜘蛛的窩?雖然我不曾看過這種房子,但為什麼我知道它一定是蜘蛛蓋的呢?

Because the white pillars in front of the door are like weapons ejected from the palm of Spider-Man (Peter Parker) in the movie. 因為門前那幾根白色柱子就像是電影裡的蜘蛛人(彼得·帕克)手掌中噴射出來的武器。

Because the white pillars in front of the door are like weapons ejected from the palm of Spider-Man (Peter Parker) in the movie. 因為門前那幾根白色柱子就像是電影裡的蜘蛛人(彼得·帕克)手掌中噴射出來的武器。

Then I found a big stupid ant hovering at the spider's nest. Was it not afraid of being eaten by spiders? 然後我發現一隻長得特別大隻的笨螞蟻,在蜘蛛的巢穴口徘徊。牠不怕被蜘蛛吃掉嗎?

Then I found a big stupid ant hovering at the spider's nest. Was it not afraid of being eaten by spiders? 然後我發現一隻長得特別大隻的笨螞蟻,在蜘蛛的巢穴口徘徊。牠不怕被蜘蛛吃掉嗎?

How dare you! Don't you understand this is the place of spiders? 大膽!你不知道這是蜘蛛的地盤嗎?

How dare you! Don't you understand this is the place of spiders? 大膽!你不知道這是蜘蛛的地盤嗎?

But when my camera lens approached it, it stared at me with big black eyes that looked like sunglasses. Aha! You are not an ant, you are a spider that looks like an ant. 但是當我的相機鏡頭靠近牠時,牠竟用像是帶著墨鏡的大黑眼睛盯著我看。啊哈!你不是螞蟻,你是長得像螞蟻的蜘蛛。

But when my camera lens approached it, it stared at me with big black eyes that looked like sunglasses. Aha! You are not an ant, you are a spider that looks like an ant. 但是當我的相機鏡頭靠近牠時,牠竟用像是帶著墨鏡的大黑眼睛盯著我看。啊哈!你不是螞蟻,你是長得像螞蟻的蜘蛛。

In fact, you are a female Antmimicking spider (Myrmarachne formosicola). 原來妳是母的擬台灣蟻蛛。

In fact, you are a female Antmimicking spider (Myrmarachne formosicola). 原來妳是母的擬台灣蟻蛛。

Generally speaking, the body color of the Antmimicking spider is dark. But the Myrmarachne formosicola has a more variable body color, ranging from reddish brown to brown. Its head is black, with a white triangular spot on the lower edge, and a wide black horizontal band instead of a constriction on its abdomen. In contrast, the Myrmarachne formosana has a obvious narrow in the front third of its abdomen, that looks like a bottle gourd.

一般而言,蟻蛛的體色黑溜溜的一片。然而,擬台灣蟻蛛(Myrmarachne formosicola)體色較為多變,大致呈紅褐色至褐色。牠的頭部黑色,下側緣有一枚白色三角斑,腹部不具縮隘,而是有一條寬型的黑色橫帶。相較之下,台灣蟻蛛(Myrmarachne formosana)腹部前三分之一處明顯收窄,呈葫蘆狀)

The male spider has a pair of well-developed big jaws (chelicerae). The jaws I observed was only a usual size, and it should be a female spider. Myrmarachne formosicola are generally distributed on flat to mid-altitude mountainous areas. They look like ants, but they are much larger than most small ants on my balcony. Internet data say they are 6.8mm long.

雄蛛大顎發達。我觀察到的這隻大顎只有普通大小,應該是雌蛛。擬台灣蟻蛛普遍分布於平地至中海拔山區,外觀像螞蟻,但體型比我陽台大多數的小螞蟻大很多,網路資料說體長6.8mm。

After busying for a while, she hid in the nest to rest. Are you hatching little spiders? 忙碌了一陣子之後,她躲回巢中休息。是在孵小蜘蛛嗎?

After busying for a while, she hid in the nest to rest. Are you hatching little spiders? 忙碌了一陣子之後,她躲回巢中休息。是在孵小蜘蛛嗎?

When I looked again the next day, I found that it was not good. A shortbodied cellar spider (Spermophora senoculata) was guarding her lair, seeming to want to attack her, but hesitated and didn't move. 第二天再看時,我發現狀況不妙。一隻廣六眼幽靈蛛守在她巢穴旁,似乎想攻擊她,但是猶豫著,一動也不動。

When I looked again the next day, I found that it was not good. A shortbodied cellar spider (Spermophora senoculata) was guarding her lair, seeming to want to attack her, but hesitated and didn't move. 第二天再看時,我發現狀況不妙。一隻廣六眼幽靈蛛守在她巢穴旁,似乎想攻擊她,但是猶豫著,一動也不動。

After a long time, the shortbodied cellar spider finally gave up and left. At this moment she poked her head out and breathed a sigh of relief. 過了很久,廣六眼幽靈蛛終於放棄而離開了。此時她頭探了出來,鬆了一口氣。

After a long time, the shortbodied cellar spider finally gave up and left. At this moment she poked her head out and breathed a sigh of relief. 過了很久,廣六眼幽靈蛛終於放棄而離開了。此時她頭探了出來,鬆了一口氣。

to be continued... (未完待續...)

Note 1: Ants do not rely on their eyes to perceive their surroundings, so they will not respond to people's approaching actions at a certain distance. They are always busy working. But the central pair of eyes among the eight simple eyes of antmimicking spiders are like a pair of sunglasses. They are so big and they can see if people get close to them. So they may hide or run away; they may also turn around and stare at people with sunglasses.

附註1:螞蟻因為不靠眼睛來感知周遭,所以對於人在一定距離外的靠近動作是不會有反應的,牠們總是忙碌地工作。但蟻蛛八顆單眼的那一對前中眼,像戴著一付墨鏡,圓滾滾的特別大,人若靠近牠,牠會看得見。所以可能會躲起來或逃跑;也可能會轉過身來,以墨鏡盯著人看。

Note 2: There is a class of members of the Salticidae (Jumping spider) family, which resemble ants in appearance and are classified into the genus Myrmarachne sp.. They are called antmimicking spiders. Why simulate ants? Perhaps because ants have fewer natural enemies. So jumping spiders imitate insects such as ants that are not popular with predators and will reduce the chance of being preyed. Many creatures that hunt by sight do not like to attack ants or regard ants as unpalatable food.

Antmimicking spiders move mostly by walking, but if they want to move from one leaf to another, they often do it by jumping (because they are members of the Jumping spiders). This is weird, how can an ant jump? As a result, we will find that this is antmimicking spider instead of an ant.

附註2:有一類蠅虎(跳蛛)科的成員,其外觀酷似螞蟻,歸入蟻蛛屬(Myrmarachne sp.)。牠們被稱為蟻蛛。為什麼要模擬螞蟻呢?或許是因為螞蟻的天敵較少,所以跳蛛模仿螞蟻這類不受捕獵者歡迎的昆蟲,將會減少被捕食的機會。許多靠視覺獵食的生物,並不喜歡攻擊螞蟻,或者視螞蟻為不好吃的食物。

蟻蛛的行動多數是用走的,但是若要從一片葉到另一片葉,牠常會忍不住用跳的(因為牠是跳蛛科的成員啊)。這就怪了,螞蟻怎麼可能會跳呢?於是,我們就會發現這是蟻蛛而不是螞蟻。

參考資料: 模仿螞蟻的蜘蛛 楊家旺 (2009.05.24)

Join the conversation
16
There are 16 comments , add yours!
Antonio Gil 4 months ago

Amazing work Tsao. Once more

4 months ago Edited
Tsao T-F Replied to Antonio Gil 4 months ago

Thanks, Antonio.grinning

4 months ago Edited
John Durham 4 months ago

Excellent captures - have you contributed any of your photos to local schools or universities? When I was teaching I would have loved to have had such a trove of wonderful photos.

4 months ago Edited
Tsao T-F Replied to John Durham 4 months ago

Dear John, thanks for the feedback. Your recommendation is very interesting. I will keep this in mind.heart

4 months ago Edited
Adrian Morris 4 months ago

Fasciinating!

4 months ago Edited
Tsao T-F Replied to Adrian Morris 4 months ago

Thanks, Adrian.smile

4 months ago Edited
R Kuerbovich 4 months ago

#2I enjoy your posts so much: educational and hilarious... i am amazed how can you converse about bugs and make me laugh at the same time. Thank you so much

4 months ago Edited
Tsao T-F Replied to R Kuerbovich 4 months ago

Thanks for your words, my friend. But sorry, I'm stupid. There is not much in my brain. There are only a few movies or cartoons.smile

4 months ago Edited
R Kuerbovich Replied to Tsao T-F 4 months ago

It's seems these movies and cartoons are great source of inspiration and knowledge...smilesmile

4 months ago Edited
Tsao T-F Replied to R Kuerbovich 4 months ago

smile

4 months ago Edited
Thomas Thompson 4 months ago

What an interesting set well done

4 months ago Edited
Tsao T-F Replied to Thomas Thompson 4 months ago

Thanks for the comment.smile

4 months ago Edited
Camellia Staab 4 months ago

Tsao, I learned so much by reading this post. As always great photos and tons of educational information. Thank you. to me not only does he/she look like an ant, but also has some resemblance to wasps.

4 months ago Edited
Tsao T-F Replied to Camellia Staab 4 months ago

Thank you, Camellia. Love your sweet comment!grinning

4 months ago Edited
Leon Linder 4 months ago

Another world I would have never know. Thanks again.

4 months ago Edited
Tsao T-F Replied to Leon Linder 4 months ago

Thank you, Leon. I just know this guy a few weeks ago. And I can’t help but share it with my friends.smile

4 months ago Edited
Up
Copyright @Photoblog.com