02371nas a2200145 4500008004100000245009600041210006900137260001500206300001200221490000700233520180600240100002602046700002902072856012402101 2022 eng d00aFilling gaps in the diversity and biogeography of Chilean millipedes (Myriapoda: Diplopoda)0 aFilling gaps in the diversity and biogeography of Chilean millip c14-10-2022 a561-5730 v803 a

Research on the diversity and biogeography of Chilean millipedes represents a significant gap in knowledge. To reduce this gap we conducted a study: (1) to investigate the current state of knowledge of millipede diversity, and (2) to assess the pattern and causes underlying the latitudinal diversity gradient in Chilean millipedes. In Chile, 95 native millipede species have been recorded. However, rarefaction and extrapolation curves showed that increased sampling effort will reveal more species. An asymptotic estimate of diversity predicted that millipede diversity fluctuates between 125 and 197 species. The estimate, though, was based on a limited data set. Therefore, millipede diversity is probably higher than predicted. Chilean millipedes were categorized as micro-range endemics because they all have latitudinal ranges of less than 1,000 km (with 78% of species exhibiting latitudinal ranges of only ~222 km). Millipede species richness also exhibited a bell-shaped latitudinal diversity gradient, i.e. diversity peaks in the temperate climate of central Chile and decreases towards the arid and polar climates of northern and southern Chile. A multiple regression analysis revealed that this biogeographic pattern is shaped by environmental variables related to water availability, ambient energy inputs and climatic stability. These environmental variables are proxies for two of the five biogeographic hypotheses we tested in this study, i.e. the water-energy balance hypothesis and climatic stability hypothesis. Both hypotheses suggest that millipedes need stable, humid and warm climates to grow, survive and reproduce (niche conservatism). These climatic conditions are only found in central Chile, which is consistent with the diversity peak observed in that region.

1 aParra-Gómez, Antonio1 aFernández, Leonardo, D. uhttps://myriatrix.myspecies.info/content/filling-gaps-diversity-and-biogeography-chilean-millipedes-myriapoda-diplopoda01363nas a2200145 4500008004100000022002500041245006200066210005900128260001600187300001200203490000700215520092200222100002601144856004701170 2022 eng d a0034-740X, 0718-899400aCatálogo de los milpiés (Myriapoda: Diplopoda) de Chile0 aCatálogo de los milpiés Myriapoda Diplopoda de Chile cJul-29-2022 a451-5040 v483 a

A catalogue of the millipede species recorded or described from Chile is presented, both in continental and insular territories, including synonyms, type localities, and distribution maps, based on the published literature between 1847 and 2022. A total of six orders, eleven families, 26 genera, 75 species and two subspecies were found distributed almost all over the Chilean territory. Most of the records in Chile are concentrated in the central-south zone of the country; furthermore, the described species have a high degree of endemism and the existence of seven introduced species is recognized. A key for the identification of the orders, families, and genera of millipedes occurring in Chile are provided. Finally, the species Chondrodesmus auxus Chamberlin, 1957, Chondrodesmus sierricola Chamberlin, 1957 and Rhinocricus gaudichaudi (Gervais, 1847) are proposed in nomina dubia.

1 aParra-Gómez, Antonio uhttp://dx.doi.org/10.35249/rche.48.3.22.0200862nas a2200145 4500008004100000022002500041245013800066210006900204260001600273300001000289490000700299520033700306100002600643856004700669 2022 eng d a0034-740X, 0718-899400aRecords about the alien millipede Oxidus gracilis (C. L. Koch, 1847) (Diplopoda: Polydesmida: Paradoxosomatidae) in continental Chile0 aRecords about the alien millipede Oxidus gracilis C L Koch 1847  cJan-31-2022 a73-790 v483 a

The alien polydesmid millipede Oxidus gracilis is recorded from continental Chile based on new material revised. The distribution in the country was mapped by combination of records from new material collected, preserved specimens and observations from the Global Biodiversity Information Facility (GBIF).

1 aParra-Gómez, Antonio uhttp://dx.doi.org/10.35249/rche.48.1.22.0600850nas a2200133 4500008004100000245014300041210006900184300001200253490000700265520031600272100002600588700002600614856007600640 2021 eng d00aFirst teratological case in Pleonaraius pachyskeles Attems, 1898 (Polydesmida: Dalodesmidae) including new distributional records in Chile0 aFirst teratological case in Pleonaraius pachyskeles Attems 1898  a144-1490 v253 a

The first teratological case for the millipede P. pachyskeles is described from Chile. This also becomes the first teratology known for a Chilean diplopod. Additionally, new records for the species in Los Ríos and Biobío region are given; filling its distributional gap in Southern Chile.

1 aParra-Gómez, Antonio1 aFaúndez, Eduardo, I. uhttp://www.mades.gov.py/wp-content/uploads/2021/11/bmnhnp_v25n2p144.pdf