Scaphisoma infirmum, Löbl, 2002

Löbl, I., 2002, New Species Of Scaphisoma Leach (Coleoptera: Staphylinidae: Scaphidiinae) From Mt. Wilhelm, Papua New Guinea, Acta Zoologica Academiae Scientiarum Hungaricae 48 (3), pp. 181-189 : 185-186

Scaphisoma infirmum sp. n.

( Figs 5–6 )

Holotype male, labelled: NewGuinea /NE/ Mt. Wilhelm Field Station 16.IX.1968. / No. NG-M. R. 25/ leg. Dr. I. Loksa ( HNHM).

Paratype female: NewGuinea /NE/ Mt. Wilhelm Kambugomambuno 17.IX.1968. /No. NG-M. R . 26/ leg. Dr. I. Loksa ( MHNG) .

Description. Most external diagnostic characters as in S. fenestratum . It differs as follows: Length1.8–2.0mm.Bodydarkbrown,elytraeachwithsubapical,obliqueochreousfascia.Latterentire or interrupted at middle, extended almost to sutural stria and, outwards, almost touching lateral stria. Apices of elytra lighter than most of elytral disc. Apex of abdomen slightly lighter than remain- der of body. Femora as dark as body, tibiae, tarsi and antennae lighter. Length ratio of antennal segments as: III 6, IV 10, V 17, VI 16, VII 20, VIII 14, IX 17, X 15, XI 20; segments IV, V and VI narrow, V and VI only hardly wider than segment IV, segment V almost 6 times as long as wide, segment VI well 5 times as long as wide; segment VII about 3 times as long as wide; segment VIII much wider than segment VI, about 3 times as long as wide; segment XI oval, about twice as long as wide. Elytral punctation slightly coarser than in S. fenestratum , coarser than pronotal punctation. Metathoracic wings well developed. Metasternum longer than in S. fenestratum . Mesocoxal areas 0.03 mm long, about as one fifth of shortest interval to metacoxae. Metacoxal lines subparallel.

Male sexual characters. Protarsal segments hardly widened. Aedeagus ( Figs 5 & 6 ) 0.50 mm long. Apical process of median lobe similar to that in S. fenestratum , but basal bulb oval and parameres strongly asymmetrical. Left paramere strongly widened, right paramere narrow.

Figures

Figs 5–10. Aedeagus of Scaphisoma species: 5–6 = infirmum sp. n., scale bar = 0.1 mm; 7–8 = S. frontale sp. n., scale bar = 0.2 mm; 9–10 = S. medium sp. n., scale bar = 0.2 mm