Nymphs of Macrogynoplax delicata Ribeiro-Ferreira & Froehlich, 1999, M. pulchra Ribeiro-Ferreira & Froehlich, 1999, and E. froehlichi Ribeiro-Ferreira, 1996 were associated with adults by rearing and described for the first time. The known distribution of each species has been increased.
Three known species of Macrogynoplax Enderlein from Amazonas, Brazil are redescribed: M. delicata Ribeiro-Ferreira & Froehlich, from neotype, present designation; M. poranga Ribeiro-Ferreira & Froehlich, from neotype, present designation; M. pulchra Ribeiro-Ferreira & Froehlich from holotype and M. anae new species is described. A key to males is presented. M. marauia Froehlich is considered a junior synonym of M. delicata.
Na Amazônia brasileira são registradas dezenove espécies de Leptophlebiidae, distribuídas em dez gêneros. Neste trabalho é apresentada uma lista de todos os gêneros de Leptophlebiidae ocorrentes na Região Neotropical, o numero de espécies de cada gênero no Brasil e um catálogo das espécies registradas na Amazônia brasileira.
Nymphs of three species of the genus Anacroneuria Klapálek, 1909, A. marlieri Froehlich, 2001; A. minuta Klapálek, 1922, and A. manauensis Ribeiro-Ferreira, 2001 are described. The associations of nymphs with adults were made by rearing. The known geographical distribution in Brazil of these three species was expanded.
The last instar nymph of Anacroneuria singularis Righi-Cavallaro & Lecci is described and figured from reared specimens collected in Pará State, Brazil, a new locality record for Brazil. The nymphs of this species differ from other known species by the uniformly dark brown anterior of the head and the ochraceous spots of the pronotum.
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