RESUMO
A hotspot of subterranean Collembola in ferruginous rock caves and Mesovoid Shallow Substratum is revealed by the analysis of pseudocryptic diversity. The diversity is accessed by detailed description of chaetotaxy and slight variation in morphology of 11 new species of Trogolaphysa Mills, 1938 (Collembola, Paronellidae, Paronellinae) and the 50 previously recorded species of springtails from caves, using optical and electronic microscopy. When combined with recent subterranean surveys, our results show an important reservoir of cave diversity in the Mesovoid Shallow Substratum. Contrastingly the conservation policy for subterranean fauna in metallogenic areas in Brazil prioritizes the caves instead the cave species, which may be extremely detrimental to the fauna in the shallow subterranean habitats not accessible to humans.
Assuntos
Artrópodes , Animais , Artrópodes/anatomia & histologia , Brasil , Cavernas , Ecossistema , Humanos , PolíticasRESUMO
A second species of Acherontides from Brazil is described. Acherontides serrasapoensis sp. nov. has two ocular area chaetae, tenaculum with 3+3, two clavate tenent hairs, and anal spines about 1/3 the length of unguis III. A comparative table is presented and an identification key for the species of Acherontides.
Assuntos
Artrópodes , Hidrozoários , Animais , Brasil , OlhoRESUMO
We summarize the distribution and habitat of Brazilian Archisotoma species, a taxonomic key for all species of the genus is given and a new species is described from intertidal sand of the Biologial Reserve Atol das Rocas, Brazil. Archisotoma jariani sp. nov. belongs to the besselsi group, recognized by small size, tibiotarsus III with stiff outer spur, maxillary head with thin simple capitulum, 3-2 pairs of trichobothria on abdominal segment VI. This is the first species of Collembola recorded from Atol das Rocas.