The presence of Chane Nieto and Guajirolus Flowers (Ephemeroptera, Baetidae) in Brazil with the description of a new species

The related genera Chane and Guajirolus are reported for the first time from Brazil. Guajirolus rondoni, sp. n. is described based on nymphs from Rondônia State and can be differentiated from the other species of the genus by the following combination of characteristics: 1) mandibles with minute spicules on outer margin; 2) maxillary palp three-segmented; 3) hypopharynx lingua with three rounded processes; 4) projection of second segment of labial palp with apex narrower than base; 5) abdominal color pattern; and 6) paraprocts with 13 to 15 organized spines. An updated key to the species of both genera is presented.<br>Os gêneros relacionados Chane e Guajirolus são pela primeira vez registrados para o Brasil. Guajirolus rondoni, sp. n., é descrita com base em ninfas do Estado de Rondônia e podem ser diferenciadas das demais espécies do gênero pela seguinte combinação de caracteres: 1) mandíbulas com pequenas espículas na margem externa; 2) palpo maxilar tri-segmentado; 3) língua da hipofaringe com três processos arredondados; 4) projeção do segundo artículo do palpo labial relativamente mais estreito no ápice do que na base; 5) padrão de coloração abdominal; e 6) paraproctos com 13 a 15 espinhos organizados. Uma chave atualizada para as espécies de ambos os gêneros é apresentada

Conservation of mayflies (Insecta, Ephemeroptera) in Esp\uedrito Santo, southeastern Brazil

Conservation of mayflies (Insecta, Ephemeroptera) in Espírito Santo, southeastern Brazil. Ephemeroptera exhibits great diversity among bodies of freshwater in the Atlantic Forest, a biome that is suffering from massive human impact. Within this context, the creation of conservation units using biological information is more recommended than economic, cultural, or political criteria. The distribution pattern of 76 Ephemeroptera species was analyzed using the biogeographical methods Parsimony Analysis of Endemicity and Network Analysis Method in order to infer relevant areas for conservation of the mayfly community in Espírito Santo. The results obtained from both analyses were largely congruent, and pointed out four relevant areas for conservation: two in the south of the state, where conservation units or priority areas for conservation are well established; and two in the north, a region in the state where little conservation efforts have been historically done. Therefore, based on our analyses on mayflies, we recommend the expansion of the existing APCs or the creation of new APCs on the north of Espírito Santo

First report of Simuliidae and Chironomidae (Diptera) living on nymphs of Lachlania Hagen (Ephemeroptera: Oligoneuriidae) in South America

We report cases of Simuliidae and Chironomidae living on Lachlania nymphs (Ephemeroptera). This is the first record of these associations in South America. Simulium exiguum (pupae and larvae), Simulium cuasiexiguum (larvae), Cricotopus sp. (larva) and Rheotanytarsus sp. (larva) were found associated with Lachlania nymphs. We believe that all of these associations can be classified as opportunistic (or casual) attachment

As br\ue2nquias dos g\ueaneros de Leptophlebiidae (Insecta: Ephemeroptera) ocorrentes no Estado do Rio de Janeiro

As brânquias das ninfas dos gêneros Askola, Farrodes, Hagenulopsis, Hermanella, Hylister, Leentvaaria, Needhamella, Perissophlebiodes, Massartella, Miroculis, Thraulodes, Traverella e Ulmeritoides (Leptophlebiidae) são descritas e ilustradas