Allacma
Börner, 1906
Species Guides
2Allacma is a of springtails (Collembola) in the Sminthuridae, first described by Börner in 1906. Members of this genus are globular springtails characterized by their compact, rounded body form typical of the order Symphypleona. The genus contains multiple distributed across Europe and North America, with records extending to Arctic and Mediterranean regions. Allacma fusca, described by Linnaeus in 1758, is a well-known representative species.
Pronunciation
How to pronounce Allacma: //əˈlæk.mə//
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Identification
Globular body shape with the segments into a compact, rounded form characteristic of Symphypleona. The (springing organ) is well-developed. -level identification within Allacma requires examination of chaetotaxy (bristle arrangement), coloration patterns, and detailed morphological features of the , , and genital region.
Images
Distribution
Europe; North America; Arctic and Sub-arctic regions; Mediterranean region; Macaronesian islands; East African Steppe.
Ecological Role
Springtails contribute to soil function through decomposition of organic matter and nutrient cycling.
Similar Taxa
- SminthurusAlso in Sminthuridae; distinguished by specific morphological features of the and appendages requiring microscopic examination.
- Other Symphypleona generaSimilar globular body form; separation relies on detailed chaetotaxy and genital structure.