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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Springtails and allies (Collembola) » Poduromorpha » Hypogastruridae » Ceratophysella
Photo#411148
Three-day-old eggs - Ceratophysella
Copyright © 2010 Domingo Zungri

Three-day-old eggs - Ceratophysella
Roseville, Placer County, California, USA
Size: 0.1-0.2 mm
Ceratophysella likes to lay batches of eggs in depressions. It looks like the eyes of the embryos are visible through the eggshells. These eggs were first noticed three days prior to their being photographed.

Images of this individual: tag all
Three-day-old eggs - Ceratophysella Three-day-old eggs, and observed hatching after six days - Ceratophysella Three-day-old eggs, and observed hatching after six days - Ceratophysella Three-day-old eggs, and observed hatching after six days - Ceratophysella
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Contributed by Domingo Zungri on 15 June, 2010 - 12:41am
Last updated 30 June, 2010 - 9:55am

Moved
Moved from Springtails and allies.
… Domingo Zungri, 30 June, 2010 - 9:55am login or register to post comments

Hatching Ceratophysella
Indeed the 1st thing to recognise from the developing embryos in the eggs are the dark eyepatches.
Great series of shots.
The eggs have 2 polar caps. Hardly visible on this picture but you can see them when you know they are there ;-)
These polar caps are the remnant egg shell. The egg grows when the embryo develops. At a certain point the egg shell bursts at the equator of the egg. While the embryo grows further, still encapsulated in a membrane, the remains of the original egg shell form 2 caps, craters, at the poles of the egg.
… Frans Janssens, 30 June, 2010 - 8:29am login or register to post comments

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