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Previous events

Springtail - Bourletiella arvalis

Springtail - Bourletiella arvalis
Boulder, Boulder County, Colorado, USA
May 18, 2019
Size: less than 2 mm

Photos at other angles in link


Bourletiella arvalis

For this photo I was wondering if it is a male or female, and also how would I send you photos of springtails from outside the range of bugguide that I would like to have identified?

I cannot...
see the sexual diagnostic characters in this magnification.
Other pics you want to have IDed :
Create a free account at
and make sure to add the tag 'Collembola' to your posts.
Provide date and location (preferable a map).

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