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Harvestman vs Spider Side by side to show the difference in body shape between a harvestman and spider.<br /> <br /> Body shape: Harvestmen (Opiliones) have the cephalothorax and abdomen fused into one unit (in Spiders the abdomen is separated by a slender waist, somewhat similar to wasps)<br /> <br /> Eyes: Harvestmen have a single pair of eyes, central on top of the cephalothorax. Spiders have 6-8 eyes in various configuratuions<br /> <br /> Venom: Harvestmen don&#039;t have venom glands in their jaws<br /> <br /> Silk: Harvestmen do not posses nipples for spinning silk. <br /> <br /> Based on these images:<br /> <figure class="photo"><a href="https://www.jungledragon.com/image/101078/phalangium_opilio_-_female.html" title="Phalangium opilio - Female"><img src="https://s3.amazonaws.com/media.jungledragon.com/images/3043/101078_thumb.jpg?AWSAccessKeyId=05GMT0V3GWVNE7GGM1R2&Expires=1763596810&Signature=6AzlTU0q%2F7kskYqstHnOrs%2Boa8I%3D" width="200" height="114" alt="Phalangium opilio - Female Arachnida,Daddy longlegs,Eupnoi,Geotagged,Harvestman,Netherlands,Opiliones,Phalangiidae,Phalangioidea,Phalangium,Phalangium opilio,nl: Gewone hooiwagen" /></a></figure><br /> <figure class="photo"><a href="https://www.jungledragon.com/image/72458/holocnemus_pluchei.html" title="Holocnemus pluchei"><img src="https://s3.amazonaws.com/media.jungledragon.com/images/3043/72458_thumb.jpg?AWSAccessKeyId=05GMT0V3GWVNE7GGM1R2&Expires=1763596810&Signature=XTyrGNkVLSxX%2BVXVB3DtFqV41y0%3D" width="200" height="114" alt="Holocnemus pluchei This introduced &quot;exotic&quot; counterpart for our https://www.jungledragon.com/tag/6062/pholcus_phalangioides.html is steadily getting more common in the Netherlands Araneae,Geotagged,Holocneminae,Holocnemus,Holocnemus pluchei,Netherlands,Pholcidae,Pholcoidea,nl: Marmertrilspin" /></a></figure> Arachnida ID help,Araneae,Harvestman,Holocnemus pluchei,Opiliones,Phalangium opilio,Spider,nl: Gewone hooiwagen,nl: Marmertrilspin Click/tap to enlarge

Harvestman vs Spider

Side by side to show the difference in body shape between a harvestman and spider.

Body shape: Harvestmen (Opiliones) have the cephalothorax and abdomen fused into one unit (in Spiders the abdomen is separated by a slender waist, somewhat similar to wasps)

Eyes: Harvestmen have a single pair of eyes, central on top of the cephalothorax. Spiders have 6-8 eyes in various configuratuions

Venom: Harvestmen don't have venom glands in their jaws

Silk: Harvestmen do not posses nipples for spinning silk.

Based on these images:

Phalangium opilio - Female Arachnida,Daddy longlegs,Eupnoi,Geotagged,Harvestman,Netherlands,Opiliones,Phalangiidae,Phalangioidea,Phalangium,Phalangium opilio,nl: Gewone hooiwagen

Holocnemus pluchei This introduced "exotic" counterpart for our https://www.jungledragon.com/tag/6062/pholcus_phalangioides.html is steadily getting more common in the Netherlands Araneae,Geotagged,Holocneminae,Holocnemus,Holocnemus pluchei,Netherlands,Pholcidae,Pholcoidea,nl: Marmertrilspin

    comments (3)

  1. View Ferdy Christant's profile
    Ferdy Christant
    Lion
    View Lion class
    Very cool. Makes me wonder why harvestmen have such big bodies. What is the purpose? Also, their eyes are tiny. Posted 5 years ago
    1. View Pudding4brains's profile
      Pudding4brains
      Lion
      View Lion class
      In truth, their bodies are more "compact" with the cephalothorax and abdomen fused into one "body" - it's a more primitive, simple construction. Other Arachnids such as Mites (Acari) share this "feature". Posted 5 years ago
      1. View Ferdy Christant's profile
        Ferdy Christant
        Lion
        View Lion class
        Nice learning, thank you. Posted 5 years ago

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By Pudding4brains

Public Domain
Uploaded Sep 8, 2020.
country flag of Netherlands Explore Netherlands 8,314 2,306 0

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