Key to Scientific Names in Ornithology

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(Tyrannidae; Ϯ Yellow-olive Flycatcher T. sulphurescens) Gr. τολμα tolma, τολμης tolmēs  courage, boldness; Mod. L. myias  flycatcher  < Gr. μυια muia, μυιας muias  fly; πιαζω piazō  to seize; "Genus TOLMOMYIAS genus nov. ...  Tolmomyias genus nov.  Type Platyrhynchus sulphurescens SPIX.  Similar to Rhynchocyclus, but bill relatively smaller and narrower, subterminal phalanx of middle toe entirely free from outer toe, and edge of outer web of outermost primary not roughened.  This group corresponds to Rhynchocyclus of Ridgway, but not of Cabanis and Heine who proposed the name as a substitute for Cyclorhynchus SUNDEVALL (preoccupied by KAUP) of which Platyrhynchos olivaceus TEMMINCK is the type. Craspedoprion HARTERT, thus, becomes a synonym of Rhynchocyclus, while a new genus has to be created for the reception of P. sulphurescens and allies." (Hellmayr 1927). The Yellow-olive Flycatcher often builds its nest in thorny acacias or near wasp-nests.