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An interesting new species of Megaselia from Sulawesi, the ground plan of the Phoridae (Diptera) and phylogenetie implications for the Cyclorrhapha
Author(s) -
DISNEY R. H. L.
Publication year - 1988
Publication title -
systematic entomology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.552
H-Index - 66
eISSN - 1365-3113
pISSN - 0307-6970
DOI - 10.1111/j.1365-3113.1988.tb00253.x
Subject(s) - phoridae , biology , plan (archaeology) , taxon , body plan , paleontology , common ground , zoology , fishery , communication , embryo , sociology
Megaselia biarticulata sp.n. is described from Sulawesi. Its distinctly two‐segmented palp reinforces the view that a two‐segmented palp is part of the ground plan of the family. The tibial hair palisades are also postulated as part of the ground plan and serve to link the Phoridae to the Platypezidae. The median furrow on the frons is considered as part of the ground plan. Furthermore it is postulated that it is homologous with the frontal vitta in the Schizophora, and that its invaginated lower end gave rise to the ptilinum. The Empidoidea cannot be ancestral to the Cyclorrhapha and the case for regarding these two taxa as sister groups seems highly tenuous in the light of the inferred ground plan for the Phoridae.