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Home » Guide » Arthropods (Arthropoda) » Springtails and allies (Collembola) » Elongate-bodied Springtails (Entomobryomorpha) » Isotomidae » Pseudisotoma » Pseudisotoma sensibilis
Photo#94861
springtail - Pseudisotoma sensibilis
Copyright © 2007 tom murray

springtail - Pseudisotoma sensibilis
Boxborough, Middlesex County, Massachusetts, USA
February 6, 2007
Size: ~1mm
Found in my terrarium.

Images of this individual: tag all
springtail - Pseudisotoma sensibilis springtail - Pseudisotoma sensibilis springtail - Pseudisotoma sensibilis
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Contributed by tom murray on 6 February, 2007 - 11:31pm
Last updated 7 February, 2007 - 7:55am

Moved
This must be an adult, compared to my other picture of an immature. Thanks Frans.
… tom murray, 7 February, 2007 - 7:55am login or register to post comments

 
It is a juvenile specimen, IMHO
Pseudisotoma sensibilis can become up to 2.0 mm.
Each Collembola has many juvenile instar stages. The smallest one (first instar = instar stage after hatching from the egg) can be as small as 0.3-0.5 mm. Subsequent instars will increase size in steps of just a few 0.1 mm. So many instar stages are required to reach the adult stage. It seems that this specimen is halfway maturity...
Adult P. sensibilis can have a deep blue colour. Watch out for such specimens in your terrarium.
… Frans Janssens, 7 February, 2007 - 12:56pm login or register to post comments

Pseudisotoma sensibilis
Juvenile specimen.
… Frans Janssens, 7 February, 2007 - 6:12am login or register to post comments

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