• Ultraviolet Photography
  •  

A. gigas ozadenes

Multispectral
2 replies to this topic

#1 Mark

    Member

  • Members(+)
  • 218 posts
  • Location: Massachusetts, USA

Posted 06 November 2016 - 20:39

Just found this in my archives... my Archispirostreptus gigas (giant African millipede), shot in UV/VIS/IR.

In this VIS reference image you can see just how dark/black they are.
Attached Image: millivis.jpg

It appears, compared to VIS, they are equally UV dark.
Attached Image: milliuv.jpg

But under IR, there is clearly some variation in the absorbance/reflectance of their exoskeleton. Also, even more notable, is how the ozadenes (chemical defense glands) show up under IR (dark spots arranged laterally along the segments).
Attached Image: milliir.jpg

Note: I've been "poisoned" by this millipede, and while it did smell somewhat foul it did not make me sick or otherwise cause a skin reaction (some people apparently suffer a rash/other).

#2 Bill De Jager

    Member

  • Members
  • 149 posts
  • Location: Northern California, USA

Posted 06 November 2016 - 20:46

Excellent and fascinating work, Mark!

I used to handle large millipedes as a child and the secretions, while having a very distinctive odor, never caused any problems for me. My exposure was limited to my hands. I expect one might get harmful results from ingestion, or perhaps from exposure to other species.

#3 Andrea B.

    Desert Dancer

  • Owner-Administrator
  • 4,643 posts
  • Location: USA

Posted 08 November 2016 - 15:20

oh Mark!!! What an interesting creature.

A little scary to me. But that's ok.
Very interesting discovery about the marks in IR.

I love this website. We get to see such cool stuff. :D
Andrea G. Blum
Often found hanging out with flowers & bees.