Ninetinae are a group of small, short-legged phallcids that are primarily restricted to arid habitats and live reclusive lives in and under terrestrial objects. They have not been in collections for a long time and have been poorly researched. genus Ibotiporanga Mello-Leitão, 1944 previously included five species. Four of the species were from the Cerrado and Caatinga biomes in Brazil, and one from northern Venezuela. Based on recent intensive collections in Brazil and northern Colombia, we describe 19 new species, all based on males and females. Ibotiporanga Dilma Hoover sp. November, I. Waleker Hoover sp. November, I. Piojo Hoover sp. November, I. Itachim Hoover sp. November, I. Zakriava Hoover sp. November, I Seek Hoover sp. November, I. Kamalai Hoover sp. November, Kanoe Hoover sp. November, I. Imale Hoover sp. November, I. Sertao Hoover sp. November, I. Guanambi Hoover sp. November, I. Capybara Hoover sp. November, I. Payaya Hoover sp. November, I. Tuxa Hoover sp. November, I. Atticum Hoover sp. November, I. Kiriri Hoover sp. November, I.Ouro Hoover sp. November, I.Itaju Bakura Hoover sp. November and I. Canudos Hoover sp. November Additionally, we will discuss previously unknown women. I. Dilois Huber & Brescovit, 2003; I. Ramosae Huber & Brescovit, 2003, presents comprehensive SEM data for eight species. Analyzing 41 CO1 barcodes Ibotiporanga Herbarium representing 21 described species and 1 undescribed species. Genetic distances between specimens and species boundary analyzes suggest that some nominal species may actually represent more than one species. Initial morphological cladistic analysis of this genus strongly supports monophyly. Ibotiporanga It has been suggested that there are several clades in this genus, including one characterized by strong elongation of the male palmar progenitor. Geographically, the genus is distributed discretely in Brazil and northern South America, separated by the Amazon biome. The morphological taxon (short forelimbs) is found in both regions, while the derived taxon (elongated forelimbs) is restricted to Brazil. Species distribution modeling suggests that: Ibotiporanga It can also occur in poorly sampled areas of Ecuador, Peru, and Venezuela. Furthermore, the strong sampling bias towards proximity of access routes suggests that this genus is also much more diverse in Brazil and Colombia. The two karyotyped species shared a diploid number of 2n♂ = 30 and an X1X2X3Y sex chromosome system.
Huber, BA, Meng, G., Král, J., Avila-Herrera, IM, and Carvalho, LS (2024). A diamond in the rough: Ibotiporanga (Araneidae, Asteridae) spiders that live in semi-arid neotropical environments. European Journal of Taxonomy, 963(1), 1-169. https://doi.org/10.5852/ejt.2024.963.2687
