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Two-tailed Spider

Hersilia sp.


Two-tailed spider - in my rubber-tree plantation, NE Thailand. Perfectly camouflaged, this spider is hardly visible. The third photo shows the bark of a rubber-tree (Hevea brasiliensis) and there is a spider on it....



1 Species ID Suggestions

Long-spinnered Bark Spider
Hersilia sp. Hersilia (spider)

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47 Comments (1–25)

JoeHartman 8 years ago

Thanks Maria!

Maria dB
Maria dB 8 years ago

Wonderful spotting!

JoeHartman 8 years ago

Thanks Gilma, David, duttagupta and rams4d!

DavidStockton 8 years ago

this one is awesome one of the best ive seen i think

Congratulations, JoeHartman. This spotting sure deserve to be SOTD!!
Love your spottings, keep sharing.

duttagupta35504 8 years ago

Found it!

rams4d 8 years ago

Really deserves. Congrats again.

JoeHartman 8 years ago

Thanks for congrats on SOTD!

RiekoS 8 years ago

Congratulations! Very good eyes.

great spotting ....... u can add it to the mission Mimetic animals of the world

JoeHartman 8 years ago

Thanks MacChristiansen and Sachin

Sachin Zaveri
Sachin Zaveri 8 years ago

Congratulations Joe !!!

MacChristiansen 8 years ago

Congratulations Joe on your SOTD

JoeHartman 8 years ago

Thanks Sergio and Reza. Karen, I'm pleasantly surprised, and proud :)

Sergio Monteiro
Sergio Monteiro 8 years ago

Congratulations Joe.

Congratulations !

KarenL 8 years ago

Congrats Joe! Your keen eyes have earned you another Spotting of the Day!

Can you spot the organism in today’s spotting of the day? The two-tailed spider superbly mimics the bark of a rubber tree and its extremely flat body casts no shadow, making it almost invisible to potential predators and prey alike.


JoeHartman 8 years ago

Thanks staccyh, rams4d and Adarsha

staccyh 8 years ago

Amazing camo! Nice photo, congrats!

rams4d 8 years ago

Impressive camouflage !!!!. Congratulations.

Adarsha B S
Adarsha B S 8 years ago

Remarkable camouflage :)

Mark Ridgway
Mark Ridgway 8 years ago

Latex embezzlers?! who would have guessed. Good luck with the studded upholstery question... I have no ideas on that one.

JoeHartman 8 years ago

Mark, I got them in my rubber-plantation, on each tree is at least one.
Last year I started to tap the rubber but after kicking out personnel because of cheating I did it a while myself. So, in the late evening, early night, I walk with a headlamp from tree to tree. I'm concentrated on cutting the bark carefully. Suddenly something "attacks" me, in as you say rocket speed. They stop close to my head and wait. When I near them they run away to the other side of the tree. They do nothing special, just defend "their" tree, by attacking with speed. I managed to shoot pics during the day as I knew they are there and it is just a matter of patience before you find one. I admire their ability to adapt totally to the background. Also seen from the side, they make themselves very flat, so it's even hard to see their silhouette at the edge of the tree. I'm still searching for an answer to the 8 holes they have on the dorsal side of the abdomen. To me they have a function, whether it be ventilation, respiration or detecting underground colours and adapt their own colouring. I haven't found an answer yet, so I keep searching.

Mark Ridgway
Mark Ridgway 8 years ago

Our Hersiliidae (Australia) are being reviewed also which made me look closer at this one. I suppose reviews make life difficult now but better in the long run. I agree I couldn't find H asiatica that looked exactly right either so good choice then. :) I was also wondering if the Thai ones move fast - ours are little rockets and incredibly aware.

surekha 8 years ago

Fabulous spotting, Joe!!

Spotted by

จังหวัดอุดรธานี, Thailand

Spotted on Jan 2, 2013
Submitted on Oct 8, 2013

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