ECOLOGICAL NICHE MODELS BY TITYUS SERRULATUS LUTZ & MELLO, 1922 AND TITYUS STIGMURUS (THORELL, 1876) (ARACHNIDA: SCORPIONES)

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  ECOLOGICAL NICHE MODELS BY TITYUS SERRULATUS LUTZ & MELLO, 1922 AND TITYUS STIGMURUS (THORELL, 1876) (ARACHNIDA: SCORPIONES) Summary Scorpions are venomous animals with high plasticity and can serve as models for biogeographical, natural history, and evolutionary studies. Ecological niche modeling can help in understanding essential characteristics of the geographic distribution of species, as well as allowing the prediction of future distribution patterns. Our objective was to model the ecological niche of the scorpion species *Tityus serrulatus * and *Tityus stigmurus* , as well as to identify the variables that influence their distribution in different biomes and their range limits in the Amazon, Caatinga, and Cerrado biomes. Data were obtained from 12 Brazilian arachnological collections. Bioclimatic variables were obtained from the WorldClim database, and niche modeling was implemented using the Maximum Entropy algorithm. The results showed that the Atlantic Forest bio...

A new species and new records of Chumma (Araneae, Macrobunidae) from South Africa

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A new species and new records of Chumma (Araneae, Macrobunidae) from South Africa

Abstract

A new species of the genus Chumma Jocqué, 2001, C. foordi sp. nov., is described from the Western Cape, South Africa. New distribution records for C. bicolor Jocqué & Alderweireldt, 2018, C. foliata Jocqué & Alderweireldt, 2018 and C. gastroperforata Jocqué, 2001 are presented. The genus is recorded from the Northern Cape Province for the first time, extending its range extensively to the northwest by approximately 450 km. The distribution of all Chumma species is mapped.

Marusik YuM, Haddad CR (2024) A new species and new records of Chumma (Araneae, Macrobunidae) from South Africa. African Invertebrates 65(2): 329-338. https://doi.org/10.3897/afrinvertebr.65.138735