Scaphisoma, Leach, 1815

Löbl, Ivan, 2014, On the Scaphidiinae (Coleoptera, Staphylinidae) of the Moluccas, Mitteilungen Der Schweizerischen Entomologischen Gesellschaft 87, pp. 49-60 : 59

KEY TO THE MOLUCCAS SPECIES OF SCAPHISOMA

1 Pronotum microsculptured and iridescent S. irideum Löbl

Pronotum lacking microsculpture and not iridescent 2

2 Elytron with large yellowish or reddish subbasai spot, not reaching basal mar¬ gin and suturai stria and entire apical third to two fifths yellowish to reddish; dark along basal margin, along suturai stria and on narrow area between light surfaces S. dansalanense Löbl

Elytral colour different 3

3 Elytral punctation very fine, as that on pronotum, or consisting of slightly larger punctures than those on pronotum, puncture intervals much larger than puncture diameters. Elytra not darkened along bases and lacking dark subapical band 4

Elytral punctation fairly coarse and very dense, much coarser than pronotal punctation, puncture to part about as large as puncture diameters. Elytra yellowish with dark basal and subapical bands Scaphisoma sp.

4 Sternite 1 with submetacoxal lines convex, submetacoxal areas about 0.05 mm, much larger than submesocoxal areas 5

Sternite 1 with submetacoxal lines parallel, submetacoxal areas 0.02-0.03 mm, about as large as submesocoxal areas 6

5 Apicolateral parts of elytra darkened. Aedeagus symmetrical, with wide parameres lobed ventrally and internal sac complex, lacking flagellum S. toxopeusi Löbl

Apicolateral parts of elytra not darkened. Adeagus asymmetrical, with narrow

paramères lobed apically and internal sac simple, bearing flagellum 5. coarctatum Löbl

6 Aedeagus with internal bearing bunch of large, robust, tooth-like sac very sclerites S. apterum sp. n.

Aedeagus with internal sac bearing two rows of robust, tooth-like sclerites S. semibreve sp. n.