Macroglossum tenebrosa
Terminal antennal segment very long, equalling the 8 preceding segments. Head and thorax uppersides green when fresh. Abdomen upperside tergites glossy bluish grey when side lit, apart from some black patches; no white side patches; tips of lateral tufts white; the scales of the anal brush usually tipped with buffish white, but sometimes largely black with the tips faintly tawny, sometimes all black in specimens from Queensland, usually so in Solomon Islands specimens. Underside of both wings bluish white basally. Hindwing upperside bluish white near anal angle, with a bluish white streak anterior to vein 1A; pale costal area also bluish white posteriorly; and the centre of the wing also with a blue gloss when side lit.
Male genitalia: Valve without stridulatory scales. Harpe elongate, acute, without teeth. Phallus with 2 dentate ridges near the base of the process, which is long and horizontal, curving round the mouth of the phallus, dentate on the ventral edge.