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Genus Hypogastrura

springtail - Hypogastrura unknown Collembolan - Hypogastrura Living Mold? - Hypogastrura Living Mold? - Hypogastrura unknown purple insects - Hypogastrura Poduromorpha IMG_1713 - Hypogastrura Unknown - Hypogastrura Collembola - Hypogastrura nivicola
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Class Collembola (Springtails and allies)
Order Poduromorpha
Family Hypogastruridae
Genus Hypogastrura
Other Common Names
H. nivicola, H. harveyi, and H. tooliki are active in winter and are called "snow fleas".
Explanation of Names
Author: Bourlet, 1839
Numbers
Nearctica lists 81 species.
Identification
Per Frans Janssens here, some diagnostic characters of Hypogastrura:

1. poor dorsal setal coverage (few setae per segment)
2. short furca
3. small anal spines
4. 8 ocelli in each eyepatch
Habitat