This is the first record of the stingless bee Partamona ailyae Camargo, 1980 in an area of the Atlantic Forest in Brazil. The morphological identification and COI and 12S sequences indicated that the samples collected in the Atlantic Forest and other areas of the range of distribution belong to the same biological species. The data revealed low intraspecific variation and high interspecific divergence, with no overlap of the taxa compared.
Pela primeira vez é descrita a ocorrência de um ginandromorfo de Melipona mondury, coletado juntamente com machos e fêmeas normais. O espécime possui assimetria bilateral, apresentando a metade direita da cabeça com caracteres de macho e a metade esquerda com caracteres de fêmea; o mesossoma apresenta caracteres de macho verificados principalmente pelo formato dos basitarsos médios e pelas tíbias e basitarsos posteriores; o metassoma, apesar de possuir apenas caracteres de macho, apresenta uma linha que divide os tergos ao meio, sendo a metade direita castanho enegrecida, semelhante às fêmeas, e a metade esquerda amarelada, semelhante aos machos.
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