Cicileus derradji sp. nov., a new species from southern Algeria (Scorpiones: Buthidae)

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  Cicileus derradji sp. nov., a new species from southern Algeria (Scorpiones: Buthidae) Abstract A new scorpion species, Cicileus derradji sp. nov., is described from Tin Zaouatine District, In Guezzam Province, southern Algeria. The description is based on an adult male holotype, an adult female paratype and a juvenile specimen, and is supported by detailed morphological analyses, including colouration, morphometrics, carination patterns and trichobothrial arrangement. This discovery extends the known distribution of the genus Cicileus approximately 500 km southwestward within Algeria. With the addition of this species, the number of recognised species in the genus increases to six. The new species is compared with all previously known species of Cicileus , and detailed colour photographs, including images taken under ultraviolet illumination, are provided. Derradj, L., Aydın Yağmur, E., Benali, N., & Bikada, M. (2026). Cicileus derradji sp. nov., a new species from south...

List of spider species in an urban forest fragment in the Brazilian Amazon with 16 new local records and 3 new records for Brazil

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List of spider species in an urban forest fragment in the Brazilian Amazon with 16 new local records and 3 new records for Brazil

Summary

The order Araneae comprises more than 52,000 described species of spiders and, despite the high diversity, there is still much to study about the taxonomy and biogeography of the group, especially in tropical regions. In this work, we provide a list of spider species/morphospecies from the Research Campus of the Museu Paraense Emílio Goeldi, Belém, Pará, Brazil, with new records at different scales. Collections occurred sporadically between 2011–2018, using different collection methods. A total of 492 individuals from 172 morphospecies were sampled, distributed in 103 genera and 25 families. It was possible to determine 84 species (48.8%), with 16 new records for Belém, including seven for Pará and three for Brazil. The relatively high species richness can be explained by several factors, such as sampling at different times of the year, the use of various collection methods, and the fact that the study area is connected to an extensive forest matrix to the northeast, possibly allowing the dispersal of individuals between areas. Finally, the new records, the high species richness, and the number of undetermined species highlight the challenges of obtaining an acceptable level of faunal knowledge of spiders in the Amazon.

Pantoja, P., Xavier, C., Bello Serrão, L., Favacho, C., Saturnino, R., & Bragio Bonaldo, A. (2025). List of spider species in an urban forest fragment in the Brazilian Amazon with 16 new local records and 3 new records for Brazil. Boletim do Museu Paraense Emílio Goeldi - Ciências Naturais , 20 (1), 1-30. https://doi.org/10.46357/bcnaturais.v20i1.1012