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Harvestman eating fungi

By melvynyeo
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47 Comments
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Taken at night in Singapore forest.

The Opiliones are known for having exceptionally long legs relative to their body size; however, some species are short-legged. As in all Arachnida, the body in the Opiliones has two tagmata, the anterior cephalothorax or prosoma, and the posterior 10-segmented abdomen or opisthosoma. The most easily discernible difference between harvestmen and spiders is that in harvestmen, the connection between the cephalothorax and abdomen is broad, so that the body appears to be a single oval structure. Other differences include the fact that Opiliones have no venom glands in their chelicerae and therefore pose no danger to humans.

They also have no silk glands and therefore do not build webs. In some highly derived species, the first five abdominal segments are fused into a dorsal shield called the scutum, which in most such species is fused with the carapace. Some such Opiliones only have this shield in the males. In some species, the two posterior abdominal segments are reduced. Some of them are divided medially on the surface to form two plates beside each other. The second pair of legs is longer than the others and function as antennae or feelers. In short-legged species, this may not be obvious.

The feeding apparatus (stomotheca) differs from most arachnids in that Opiliones can swallow chunks of solid food, not only liquids. The stomotheca is formed by extensions of the coxae of the pedipalps and the first pair of legs.

Many species are omnivorous, eating primarily small insects and all kinds of plant material and fungi; some are scavengers, feeding upon dead organisms, bird dung, and other fecal material. Such a broad range is unusual in other arachnids, which are typically pure predators. Most hunting harvestmen ambush their prey, although active hunting is also found. Because their eyes cannot form images, they use their second pair of legs as antennae to explore their environment. Unlike most other arachnids, harvestmen do not have a sucking stomach or a filtering mechanism. Rather, they ingest small particles of their food, thus making them vulnerable to internal parasites such as gregarines.
Image details
Image size
1600x1067px 591.46 KB
Make
Canon
Model
Canon EOS 5D Mark II
Shutter Speed
1/160 second
Aperture
F/16.0
Focal Length
100 mm
ISO Speed
100
Date Taken
May 28, 2018, 9:01:54 PM
Sensor Size
10mm
Published:
© 2018 - 2021 melvynyeo
Comments46
anonymous's avatar
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CrazyDu's avatar
this thing looks like a canal incrivel video
MassAtoms's avatar
That's really cool
KehXKeova's avatar
It looks so menacing!

Great shot! ^_^
GeaAusten's avatar
great photo.. I don't like these sort of insects,, but you have made it beautiful
Boreal-Beast's avatar
They're arachnids, not insects!
ghoulhive's avatar
Nebelstern's avatar
SkyPotatoFire's avatar
Wow did not know that.
isischneider's avatar
InayatShah's avatar
Wonderful

I have requested this for our group, I hope you kindly accept

:iconjennystokes-favs:
Skarh-sabishi's avatar
omg how did you make this! this is soooooooo good!! i wish i had your talent! i ll i draw is shitty cartoons!
Ghost-Studio-Devs's avatar
This is pure awesome.
human-groveback's avatar
I didn’t know harvestmen are omnivorous. I was always under the impression that among arachnids, much like parasitism, a diet that isn’t purely (or at all) meat is an Acari-exclusive thing.
J3susChr1st's avatar
That’s terrifying 
JD20mg's avatar
Fungivore spider, ... wow.  I thought that all spiders were strictly predatory.   I didn't know that there was such a thing as omnivorous spiders.  Thanks for the great picture and the info.
CewatheOtaku's avatar
amazing capture on the picture


I am afraid tho My heart is racing I don't know if it's a spider but I have arachnophobia and that thing freaks me out but the picture is amazing how do you do it?
victorroa's avatar
xPetalsOfFatex's avatar
I thought it was a Daddy Long Leg at first glance lol
glittertoxin's avatar
these are daddy long legs!
xPetalsOfFatex's avatar
they are?! man...i remember my friend use to pose at them with sticks wen ever they come out of my basement...
glittertoxin's avatar
mmhmm !! pfff i used to let them crawl all over me because i was a gross kid woah
xPetalsOfFatex's avatar
lol well me and my friends were those types of kids that would feed potato chips to ant hills (literally)
anonymous's avatar
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