A new species of Physoctonus Mello-Leitão, 1934 from the ‘Campos formations’ of southern Amazonia (Scorpiones, Buthidae)

The remarkable scorpion diversity in the Ecuadorian Andes and description of a new species of Tityus C. L. Koch, 1836 (Scorpiones, Buthidae)

A new species of Tityus, subgenus Atreus (Scorpiones: Buthidae) is described from the Province of Pichincha in the Ecuadorian Andes. Ecuadorian scorpion fauna remains one of the less well studied among those of South America. Nevertheless, some comments are addressed about its remarkable diversity and high level of endemic elements.

A New Species of the Genus Thaicharmus Kovařík, 1995 (Scorpiones: Buthidae) from Northeast India

A new species of Buthus Leach, 1815 from Cyprus (Scorpiones, Buthidae)

During the last decade, several contributions to the genus Buthus Leach, 1815 (family Buthidae) and especially to the 'Buthus occitanus' species complex were proposed. These contributions led to the definition of several species, previously considered only as subspecies or varieties, and also to the description of new species. In the present study, the questionable presence of the genus Buthus ...

A taxonomic review of the wolf spider genus Agalenocosa Mello-Leitão (Araneae, Lycosidae).

The lycosid genus Agalenocosa Mello-Leitão, 1944 comprises at least eight species from northern and eastern Argentina and neighbouring countries: Agalenocosa velox (Keyserling, 1891) comb. nov. (from southern Brazil and Argentina), transferred here from Pirata Sundevall, 1833, A. tricuspidata (Tullgren, 1905) comb. nov. (from northwestern Argentina), transferred here from Pardosa C.L. Koch, 184...

Description of the male of Tityus kuryi Lourenço, 1997 and notes about males of Tityus stigmurus (Thorell, 1877) and Tityus serrulatus Lutz & Mello, 1922 (Scorpiones, Buthidae)

The male of Tityus kuryi Lourenço, 1997 is described for the first time. Despite being very similar to the female, the male presents more robust metasomal segments. Additionally, the distribution of the sexual populations of another two species of the T. stigmurus complex is reported herein: T. serrulatus Lutz & Mello, 1922 and T. stigmurus (Thorell, 1877). Males of T. serrulatus were, until no...