TY  - JOUR
A1  - Souza, Maysa Fernanda Villela Rezende
A1  - Ferreira, Rodrigo Lopes
T1  - Two extraordinary troglobitic species of Allokoenenia (Eukoeneniidae: Palpigradi) from Brazil: first records of this initially monotypic genus more than a century after its description
T2  - European journal of taxonomy
N2  - The diversity of Palpigradi is not evenly distributed among its different branches. The widespread genus Eukoenenia includes 80% of the species, while the other genera are poorly known. Allokoenenia certainly is the most understudied genus because it is represented only by the African species Allokoenenia afra Silvestri, 1913. Its description is short and does not include many features depicted in modern taxonomy of Palpigradi. In this paper, we describe two troglobitic species of Allokoenenia, report the occurrence of a third species represented by an immature specimen from Brazilian caves, and provide brief notes on the morphology of A. afra. Allokoenenia canhembora sp. nov., A. stygia sp. nov., and Allokoenenia sp. differ from A. afra by several morphological features, including more elongated appendages and a greater number of blades on lateral organs. Thus, they are considered troglomorphic. These new species are vulnerable to extinction because they are endemic to a single or few caves directly impacted by mining activities and groundwater exploitation. This study represents the first step for the conservation of these species and their habitats, since Brazilian caves with rare troglobites cannot be irreversibly impacted. Also, it brings important contributions on the distribution and morphology of this enigmatic genus.
T3  - European journal of taxonomy  : EJT - 789:11-48 
KW  - taxonomy
KW  - morphology
KW  - cave-dwellers
KW  - troglomorphism
KW  - conservation
Y1  - 2022
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/65137
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-651379
SN  - 2118-9773
VL  - 2022
IS  - 789
SP  - 11
EP  - 48
PB  - Muséum National d'Histoire Naturelle
CY  - Paris
ER  -