Ommatoiulus sabulosus aimatopodus

Ommatoiulus sabulosus aimatopodus is a millipede occurring in the South of France; belonging to the same species than Ommatoiulus sabulosus, it differs from the type by the lack of lighter transversal lines on the back when adult. It is believed to be a Mediterranean-climate adapted variant, but whether it is a true subspecies or rather an ecomorph is unclear; first described by Antoine Risso as a distinct species, it is for now considered as a form of Ommatoiulus sabulosus, under the name Ommatoiulus sabulosus f. aimatopodus.[1]

Ommatoiulus sabulosus aimatopodus
Scientific classification
Kingdom:
Animalia
Phylum:
Arthropoda
Subphylum:
Myriapoda
Class:
Diplopoda
Order:
Julida
Family:
Julidae
Genus:
Ommatoiulus
Species:
O. sabulosus
Subspecies:
O. s. aimatopodus
Trinomial name
Ommatoiulus sabulosus aimatopodus
Synonyms

Julus aimatopodus Risso, 1826

Juveniles, subadults and adults gathered on an old wall, after the rain. The juveniles are light brown, longitudinally stripped, as typical Ommatoiulus sabulosus, while subadults and adults exhibit the black and white ringed pattern characteristic of the forma.

It has been shown that these millipede breed in autumn, and have shorter life cycle, compared to the northern Ommatoiulus sabulosus, that leads to the occurrence of only adults or old juveniles during the hot and dry summer season, believed to be an adaptation to that climate.[1]

References
  1. David, Jean-Francois; Coulis, Mathieu (2015). "Millipedes faced with drought: the life cycle of a Mediterranean population of Ommatoiulus sabulosus (Linnaeus) (Diplopoda, Julida, Julidae)". ZooKeys. 510 (510): 115–124. doi:10.3897/zookeys.510.8838. PMC 4523768. PMID 26257538.


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