Autostreptus Silvestri 1905
Authors/Creators
- 1. Instituto de Ciencias Ambientales y Evolutivas, Facultad de Ciencias, Universidad Austral de Chile, Valdivia, Chile.
- 2. Laboratório de Coleções Zoológicas, Instituto Butantan, Av. Vital Brasil 1500, Butantã, São Paulo, SP, Brazil.
- 3. ONG Vida Nativa, Santiago, Chile. & Laboratorio de Sistemática y Conservación de Herpetozoos (SyCoH), Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Concepción, Chile.
Description
Genus Autostreptus Silvestri, 1905
Autostreptus Silvestri, 1905: 742.
Type species: Iulus (recte: Julus) chilensis Gervais, 1847, by monotypy.
Diagnosis
Modified after Demange & Silva (1971: 709). Species of Autostreptus differ from other Spirostreptidae by the combination of the following characters: anterior margin of collum unmodified, not thickened (Figs 4A, 8C); body rings mostly smooth. Prefemoral process (pfp) of first pair of male legs prominent (Figs 5A, 7A, 9A). Gonopods with proplica (pp) subrectangular (Figs 5C, 7C, 9C); metaplica (mp) with mesoapical process (map) prominent; lateroapical metaplical process (dmp) elongated, directed ectad (Figs 5C–D, 7C–D, 9C–D). Telopodite (tp) with lamellar expansion (ltp); seminal groove (sg) running along ectal margin of ltp; long, pointed antetorsal process (atp) (Figs 5C, E, 7C, E, 9C, E); tip of telopodite (tp) not branched, solenomere (sl) acuminated, partially covered by ltp (Figs 5F, 7F, 9F).
Distribution
Known from Canela in Coquimbo Region to Constitución in Maule Region, Chile.
Composition
Autostreptus chilensis (Gervais, 1847), A. yanezi Demange & Silva, 1971, and A. silvagonzalezi sp. nov.
Remarks
While Spirostreptidae is well-defined morphologically within Spirostreptida, its internal classification remains uncertain as a result of the lack of phylogenetic studies. A preliminary subdivision was suggested by Enghoff (2023), carefully organizing the family into five tribes: Spirostreptini Brandt, 1833 (African genera); Trachystreptini Cook in Cook & Collins, 1895 (African genera); Orthogoneptini Chamberlin, 1941 (American genera); Perustreptini Verhoeff, 1941 (African and America genera); and Metriostreptini Krabbe, 1982 (African genera). Here, we follow this intrafamilial organization, discussing below the position of the Chilean Autostreptus.
Notes
Files
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Linked records
Additional details
Identifiers
Biodiversity
- Scientific name authorship
- Silvestri
- Kingdom
- Animalia
- Phylum
- Arthropoda
- Order
- Spirostreptida
- Family
- Spirostreptidae
- Genus
- Autostreptus
- Taxon rank
- genus
- Taxonomic concept label
- Autostreptus Silvestri, 1905 sec. Parra-Gómez, Iniesta & Morales, 2025
References
- Silvestri F. 1905. Myriapoda. Zoologische Jahrbucher, Abteilung fur Systematik, Okologie und Geographie der Tiere Supplementum 6: 715-772.
- Gervais P. 1847. Myriapodes. In: Walckenaer C. (ed.) Histoire naturelle des Insectes. Apteres IV. Librairie Encyclopedique de Roret, Paris. https://doi.org/10.5962/bhl.title.61095
- Demange J. - M. & Silva F. 1971. Nouvelle espece chilienne du genre Autostreptus Silvestri et description du materiel type de Iulus chilensis Gervais, 1847, type du genre (Myriapode, Diplopode, Spirostreptoidea, Spirostreptidae, Spirostreptinae). Bulletin du Museum national d'Histoire naturelle, 2 e serie 42 (4): 708-715.
- Enghoff H. 2023. A new distinct, disjunct giant millipede of the genus Spirostreptus Brandt, 1833, from Tanzania, and a solution for orphaned Spirostreptus species (Diplopoda, Spirostreptida, Spirostreptidae). Zootaxa 5389 (2): 275-287. https://doi.org/10.11646/zootaxa.5389.2.9
- Chamberlin R. V. 1941. On a collection of millipedes and centipedes from Northeastern Peru. Bulletin of the American Museum of Natural History 78 (7): 473-535. Available from http://hdl.handle.net/2246/1856 [accessed 20 Jun. 2025].
- Verhoeff K. W. 1941. Chilopoden und Diplopoden. In: Titschack E. (ed.) Beitrage zur Fauna Perus Vol. 1: 5-72. C. Behre, Hamburg.
- Krabbe E. 1982. Systematik der Spirostreptidae (Diplopoda, Spirostreptomorpha). Abhandlungen und Verhandlungen des Naturwissenschaftlichen Vereins in Hamburg 24: 1-476.