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Protocylindrocorpus brasiliensis n. sp. (Diplogastroidea: Cylindrocorporidae) associated with the ambrosia beetle, Euplatypus parallelus (F.) (Curculionidae: Platypodinae) in Para rubber trees (Hevea brasiliensis)

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  • Protocylindrocorpus brasiliensis n. sp. (Diplogastroidea: Cylindrocorporidae) associated with the ambrosia beetle, Euplatypus parallelus (F.)(Coleoptera: Curculionidae: Platypodinae) in Para rubber trees (Hevea brasiliensis). Nematropica 00-00. Protocylindrocorpus brasiliensis n. sp. (Diplogastroidea: Cylindrocorporidae) is described from reproductive stages removed from galleries of the ambrosia beetle, Euplatypus parallelus (F.)(Coleoptera: Curculionidae: Platypodinae) in Para rubber trees (Hevea brasiliensis) in Brazil. This is the first record of the genus Protocylindrocorpus from the Neotropics. Males of P. brasiliensis are quite striking because their long spicules extend up to 70% of their total body length. This spicule/body ratio is one of the largest if not the largest of any free-living nematode. The adults exhibit “conspecific agglutination” where they congregate in a slimy substance that serves to maintain them in a coherent group. Some of the adults were attacked by fungi and protozoan pathogens, showing that disease plays a role in regulating natural populations. The discovery of P. brasiliensis provides new information on nematode structure, behavior and ecology.
  • Keywords: Protocylindrocorpus, Nematode diseases, Elongate spicules, Conspecific agglutination, Cylindrocorpidae, Ambrosia beetle
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  • Poinar, G., Jr., J. C. P. da Silva, and C. A. H. Flechtmann. 2014. Protocylindrocorpus brasiliensis n. sp. (Diplogastroidea: Cylindrocorporidae) associated with the ambrosia beetle, Euplatypus parallelus (F.) (Curculionidae: Platypodinae) in Para rubber trees (Hevea brasiliensis). Nematropica, 44(1), 51-56.
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  • 44
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  • 1
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