Sagola helmorei Park and Carlton

Park, J. - S. & Carlton, C. E., 2014, A revision of the New Zealand species of the genus Sagola Sharp (Coleoptera: Staphylinidae: Pselaphinae: Faronitae), The Coleopterists Bulletin (mo 13) 68, pp. 1-156 : 54

Sagola helmorei Park and Carlton , new species

( Figs. 29a, 29c, 29e–f , 30 )

Type Material. Holotype. NEW ZEALAND: Northland: 1♂ ( NZAC), aedeagus dissected and mounted in balsam on a clear plastic card, “ NEW ZEALAND ND SH 12, Waipoua SF 20 Sep 1977 D.W. Helmore ”, “Rotten stumps/trees 77/102”, “ N.Z. Arthropod Collection, NZAC Private Bag 92170 AUCKLAND New Zealand”, “ HOLOTYPE Sagola helmorei Park and Carlton 2013 ” . Paratypes (11 males). NEW ZEALAND: Auckland : 2♂♂ ( FMNH) , Waitakere Ra., Cascadekauri Park, Upper Kauri tr., 170m, 8 XII 1984 – 25 I 1985, kauri-podo-hdwd, A. Newton, M. Thayer 680, FIT & window trap ; 1♂ ( FMNH) , Waitakere Range, 260m, Nohoanga Scenic Res. , 8 XII 1984 – 25 I 1985, hdwd-podocarp forest, A. Newton, M. Thayer 679, FIT & window trap ; Northland: 2♂♂ (slide-mounted; FMNH) , Mangamuka Summit, 12km nw Mangamuka , 400m, 25 XI–5 XII 1984, hdwd-podocarp forest, A. Newton, M. Thayer 683, FIT & window trap ; 1♂ ( DSC) , Waipoua SF, 0.9km e forest hqtrs, 120m, 26 XI– 4 XII 1984, hdwd-podocarp forest, A. Newton, M. Thayer 686, berl., leaf & log litter, forest floor ; 1♂ ( FMNH) , Waipoua SF, Wairau Summit , 400m, 27 XI–6 XII 1984, hdwd-podocarp forest, A. Newton, M. Thayer 687, FIT & window trap ; 1♂ ( FMNH), Waipoua SF , 0.8km nw Wairau Summit, 350m, 27 XI–6 XII 1984, hdwd-podocarp forest, A. Newton, M. Thayer 689, FIT& window trap ; 1♂ ( NZAC) , Puketona , 20 I 1972, G.W. Ramsay, litter 72/49 ; 1♂ ( NZAC) , Pahia , 20 I 1972, G.W. Ramsay, litter 72/44 ; 1♂ ( FMNH), Waipoua SF , Te Matua Ngahere., 16–17 III 1978, 400m, S. & J. Peck, Kauri forest .

Etymology. This species is named for the collector of the holotype, Desmond W. Helmore.

Diagnosis. This species can be distinguished by the normal temple of the male, longer male antennomeres 6–8, and the left paramere divided for one-third its length.

Description of Male. L e n g t h 2.3– 2.8 m m. Body brown, antennae, legs, and maxillary palpi paler (Fig.). Head: Antennomere 2 longer than wide, 3 subquadrate, 4–8 longer than wide, 9–10 subquadrate. Eye small and prominent, one-third length of temple ( Fig. 29e ). Thorax: Prosternum slightly longer than wide, widest at one-third length. Elytra rectangular ( Fig. 29a ). Meso- and metathorax trapezoidal, as long as wide. Aedeagus: Median lobe broad and blunt, shorter than parameres ( Fig. 29c ). Phallobase of median lobe asymmetrical and rectangular ( Fig. 29c ). Parameres asymmetrical and divided, with one seta apically, left paramere broader than right ( Fig. 29c ).

Distribution. Auckland, Northland ( Fig. 30 : black circles).

Habitat. Most specimens of this species were collected using flight intercept traps or by sifting leaf and log litter in hardwood and podocarp forests.

Figures

Fig. 29. Sagola species in the helmorei species-group. Habitus, dorsal views: a) S. helmorei, b) S. wellingtonensis. Aedeagi, dorsal views: c) S. helmorei, d) S. wellingtonensis. S. helmorei, male head: e) Dorsal surface, f) Ventral surface. Scale bars a–b = 1 mm, c–f = 0.1 mm.

Fig. 30. Known collection localities of New Zealand Sagola species.S. helmorei: black circles;S. wellingtonensis: triangle.