Nannariini
Hoffman, 1964
Genus Guides
1- Nannaria(Twisted-Claw Millipedes)
Nannariini is a tribe of flat-backed millipedes within the Xystodesmidae, Rhysodesminae. The tribe was established by Hoffman in 1964 and comprises several of small to medium-sized polydesmidan millipedes found primarily in North America. Members of this tribe are characterized by specific gonopodal modifications that distinguish them from related tribes within Rhysodesminae.
Pronunciation
How to pronounce Nannariini: /næn.nəˈriː.ɪˌnaɪ/
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Identification
Nannariini can be distinguished from other Rhysodesminae tribes by features of the male , particularly the structure of the telopodite and prefemoral process. The tribe is generally associated with smaller body sizes compared to some related xystodesmid groups. Specific external morphological characters visible without dissection are not well documented in the literature.
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Habitat
within Nannariini have been recorded from forested , particularly in mesic to wet woodland environments. They are generally found in leaf litter and decaying woody debris. Specific microhabitat preferences vary by and species.
Distribution
The tribe is distributed primarily in eastern and central North America, with records from the Appalachian region and surrounding areas. The distribution is discontinuous and reflects the fragmented nature of suitable mesic forest .
Ecological Role
As with other xystodesmid millipedes, members of Nannariini function as in forest , contributing to decomposition of plant material and nutrient cycling. Their role as prey for small vertebrates and has not been specifically documented.
Similar Taxa
- PachydesminiAnother tribe within Rhysodesminae; distinguished from Nannariini by gonopodal structure, particularly the form of the acropodite and solenomere
- RhysodesminiThe nominotypical tribe of Rhysodesminae; generally includes larger-bodied with different gonopodal configurations
More Details
Taxonomic history
Hoffman established Nannariini in 1964 as part of his extensive work on North American xystodesmid millipedes. The tribe has undergone limited revision since its original description, and phylogenetic relationships within Rhysodesminae remain incompletely resolved.
Included genera
The tribe includes such as Nannaria and related small-bodied forms, though the precise generic composition has been subject to minor adjustments in recent taxonomic treatments.