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Home » Guide » Arthropods (Arthropoda) » Springtails and allies (Collembola) » Elongate-bodied Springtails (Entomobryomorpha) » Tomoceridae » Pogonognathellus » Pogonognathellus flavescens
Photo#89399
4 colored backgrounds - Pogonognathellus flavescens
Copyright © 2006 Jim McClarin

4 colored backgrounds - Pogonognathellus flavescens
Windham, Rockingham County, New Hampshire, USA
December 2, 2006
Size: about 1.8 mm
Here I used a black velvet paper background seen though 1/4-inch of water and the bottom of a clear, plastic, deli container. The linked images are all of the same specimen.

Images of this individual: tag all
4 colored backgrounds - Pogonognathellus flavescens 4 colored backgrounds - Pogonognathellus flavescens 4 colored backgrounds - Pogonognathellus flavescens 4 colored backgrounds - Pogonognathellus flavescens
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Contributed by Jim McClarin on 3 December, 2006 - 6:23pm
Last updated 6 December, 2006 - 5:10pm

Moved
Moved from Tomoceridae.
… Jim McClarin, 6 December, 2006 - 5:10pm login or register to post comments

Pogonognathellus flavescens, juvenile
This background gets a score of 1. Due to the dark background, the fine setae can be seen clearly. The dark background combined with the scattered light conditions create a kind of 'darkfield illumination' effect, which makes structures visible that cannot be seen in normal illumination. In this specimen the long spinelike seta on the right hind tibia is seen clearly. It is hard to see with the other backgrounds.
Darkfield illumination is ideal to observe the chaetotaxy (distribution of setae) of a specimen.

Conclusion: there is no such thing as an ideal background... Some are better to reveal the chaetotaxy, other are better to represent the colour in a more realistic way.
… Frans Janssens, 4 December, 2006 - 5:01am login or register to post comments

 
Thank you, Frans.
I think I'll try shooting against the darker background for awhile.
… Jim McClarin, 6 December, 2006 - 5:12pm login or register to post comments

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