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Acanthosomatidae - relative sizes and characters While sifting through my images of Pentatomoidea I decided to make a new version of this old collage:<br />
<a href="https://commons.wikimedia.org/wiki/File:Acanthosomatidae_sizes.jpg" rel="nofollow">https://commons.wikimedia.org/wiki/File:Acanthosomatidae_sizes.jpg</a><br />
It shows representatives of the main genera of Acanthosomatidae in Europe, side by side and resized to illustrate their relative size difference as well as some helpful characters indicated:<br />
Blue: Length of 1st antenna segment relative to head<br />
Red: Relative width of base of pronotum and scutellum<br />
Green: Base of pronotum/scutellum much more strongly arched on Acanthosoma haemorrhoidale vs Elasmostethus interstinctus<br />
Yellow: Scutellum more densely punctured on Elasmostethus interstinctus vs Acanthosoma haemorrhoidale<br />
<br />
Other helpful characters include the red/black banded abdomen under the wing membrane on Acanthosoma haemorrhoidale vs all black on Elasmostethus interstinctus and the dark lateral triangles in the membranes of Elasmostethus interstinctus vs all clear membranes on Acanthosoma.<br />
Here is some more help on Elasmostethus and Acanthosoma:<br />
<figure class="photo"><a href="https://www.jungledragon.com/image/67517/elasmostethus_vs_acanthosoma.html" title="Elasmostethus vs Acanthosoma"><img src="https://s3.amazonaws.com/media.jungledragon.com/images/3043/67517_thumb.jpg?AWSAccessKeyId=05GMT0V3GWVNE7GGM1R2&Expires=1571270410&Signature=TaOnYrz8dQOa4gd4uJgQC61LcAw%3D" width="200" height="150" alt="Elasmostethus vs Acanthosoma Two species that often get confused in photo-IDs, despite the obvious difference in size and numerous other differences you (well, me that is ;o) always have to look twice ... like in this example:<br />
https://www.jungledragon.com/image/67560/elasmostethus_interstinctus_-_acanthosoma_lookalike.html<br />
For comparison to other Acanthosomatidae see here:<br />
https://www.jungledragon.com/image/67516/acanthosomatidae_-_relative_sizes_and_characters.html Acanthosoma,Acanthosoma haemorrhoidale,Acanthosomatidae,Elasmostethus,Elasmostethus interstinctus,Heteroptera ID help,Pentatomoidea" /></a></figure> Acanthosoma,Acanthosoma haemorrhoidale,Acanthosomatidae,Cyphostethus,Cyphostethus tristriatus,Elasmostethus,Elasmostethus interstinctus,Elasmucha,Elasmucha grisea,Heteroptera ID help,Pentatomoidea Click/tap to enlarge

Acanthosomatidae - relative sizes and characters

While sifting through my images of Pentatomoidea I decided to make a new version of this old collage:
https://commons.wikimedia.org/wiki/File:Acanthosomatidae_sizes.jpg
It shows representatives of the main genera of Acanthosomatidae in Europe, side by side and resized to illustrate their relative size difference as well as some helpful characters indicated:
Blue: Length of 1st antenna segment relative to head
Red: Relative width of base of pronotum and scutellum
Green: Base of pronotum/scutellum much more strongly arched on Acanthosoma haemorrhoidale vs Elasmostethus interstinctus
Yellow: Scutellum more densely punctured on Elasmostethus interstinctus vs Acanthosoma haemorrhoidale

Other helpful characters include the red/black banded abdomen under the wing membrane on Acanthosoma haemorrhoidale vs all black on Elasmostethus interstinctus and the dark lateral triangles in the membranes of Elasmostethus interstinctus vs all clear membranes on Acanthosoma.
Here is some more help on Elasmostethus and Acanthosoma:

Elasmostethus vs Acanthosoma Two species that often get confused in photo-IDs, despite the obvious difference in size and numerous other differences you (well, me that is ;o) always have to look twice ... like in this example:<br />
https://www.jungledragon.com/image/67560/elasmostethus_interstinctus_-_acanthosoma_lookalike.html<br />
For comparison to other Acanthosomatidae see here:<br />
https://www.jungledragon.com/image/67516/acanthosomatidae_-_relative_sizes_and_characters.html Acanthosoma,Acanthosoma haemorrhoidale,Acanthosomatidae,Elasmostethus,Elasmostethus interstinctus,Heteroptera ID help,Pentatomoidea

    comments (1)

  1. Very useful! Posted 11 months ago

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By Pudding4brains

Public Domain
Uploaded Oct 10, 2018.