[Taxacom] Unknown structure

[Vinícius Antonio de Oliveira Dittrich]

   Dear all,
   Does anybody know this structure? I've found it attached on a bamboo,
(probably Merostachys), in a semideciduous forest in São Paulo State,
southeastern Brazil. I'll appreciate any help.

Photos can be seen at these links:
http://www.umc.br/~vmiranda/temp/unknown002.jpg<http://www.umc.br/%7Evmiranda/temp/unknown002.jpg>
http://www.umc.br/~vmiranda/temp/unknown003.jpg<http://www.umc.br/%7Evmiranda/temp/unknown003.jpg>
http://www.umc.br/~vmiranda/temp/unknown004.jpg<http://www.umc.br/%7Evmiranda/temp/unknown004.jpg>

   Greetings,

   Prof. Dr. Vinícius Antonio de Oliveira Dittrich
   Universidade Cruzeiro do Sul, São Paulo, São Paulo, Brazil.