| Resumo: |
Neotropical Meliponini: the genus Partamona Schwarz, 1939 (Hymenoptera, Apidae). The systematics and biogeography of Partamona Schwarz, a Neotropical genus of stingless bees (Meliponini, Apinae, Apidae), are revised. Seventeen new species are described: P. epiphytophila sp. nov., P. subtilis sp. nov., P. nhambiquara sp. nov., P. batesi sp. nov., P. yungarum sp. nov., P. vitae sp. nov., P. ferreirai sp. nov., P. gregaria sp. nov., P. auripennis sp. nov., P. nigrilabris sp. nov., P. combinata sp. nov., P. chapadicola sp. nov., P. seridoensis sp. nov., P. littoralis sp. nov., P. criptica sp. nov., P. rustica sp. nov. and P. sooretamae sp. nov. Partamona pseudomusarum Camargo, 1980, is considered as junior synonym of P. vicina Camargo, 1980. Types of P. grandipennis (Schwarz, 1951), P. xanthogastra Pedro & Camargo, 1996-1997, P. pearsoni (Schwarz, 1938), P. ailyae Camargo, 1980, P. pseudomusarum, P. vicina, P. mulata Moure in Camargo, 1980, P. aequatoriana Camargo, 1980, P. mourei Camargo, 1980, P. peckolti, (Friese, 1901), P. testacea (Klug, 1807), P. helleri (Friese, 1900) and P. musarum (Cockerell, 1917) were examined. Lectotypes of P. orizabaensis (Strand, 1919), and P. cupira (Smith, 1863) are designated. An identification key for the species and drawings of morphological characters are presented. A phylogenetic hypothesis, based mainly on morphological characters is proposed. Four groups are defined, considering the shape of mandible of workers and sternum VII of males: bilineata / epiphytophila group (western Amazon to México), including P. bilineata (Say), P. grandipennis, P. xanthogastra P. orizabaensis P. peckolti P. epiphytophila sp. nov., P. subtilis sp. nov., P. nhambiquara sp. nov., P. batesi sp. nov., P. yungarum sp. nov. and P. vitae sp. nov.; musarum group (Central Brazil, north of South America to Central America), including P. musarum, P. aequatoriana, P. vicina, P. mourei, P. pearsoni, P. ferreirai sp. nov., P. gregaria sp. nov. and P. testacea; nigrior group (Central Brazil to northeast of South America) including P. nigrior (Cockerell, 1925), P. auripennis sp. nov., P. nigrilabris sp. nov., P. combinata sp. nov., P. chapadicola sp. nov., P. seridoensis sp. nov. and P. littoralis sp. nov., and cupira group (southeastern and Central Brazil), including P. cupira, P. mulata, P. ailyae, P. sooretamae sp. nov., P. criptica sp. nov., P. rustica sp. nov. and P. helleri. Some geographic distribution patterns, congruent with that of other Meliponini bees, are commented.
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