Some of the diagnostic features of Xylocopa appendiculata Smith: a lateral habitus showing coloration of pubescence on mesosoma and metasoma (the yellow coloration may not be as fluorescent in field specimens and is mostly due to reflections from the imaging system) b face showing integument sculpturing of clypeus and paraocular area c coloration of pubescence around occipital area (arrow) d pygidial plate (pp) and coloration of pubescence close to it (arrows) e shape of mesoscutellum from lateral view f Shape of metasomal tergum 1 (T1) from antero-lateral view and the presence of a foveate, hollowed like depression (arrow) g dentation of mandibles (arrow showing the two teeth on mandible).