Stenosagola chandleri Park and Carlton

Park, J. - S. & Carlton, C. E., 2013, A Revision of the New Zealand GenusStenosagolaBroun, 1921 (Coleoptera: Staphylinidae: Pselaphinae: Faronitae), The Coleopterists Bulletin 67 (3), pp. 335-359 : 354-355

Stenosagola chandleri Park and Carlton , new species

Type Material. Holotype. NEW ZEALAND:

DUNEDIN ( DN): ♂ (wingless male), aedeagus dissected and mounted in balsam on a clear plastic card, “ NEW ZEALAND: DN, Maukatua Scenic Res NW of Woodside, 88m Lee Creek , III-8-2010 D.S. Chandler and J. T. Nunn, rotten wood”, “ HOLOTYPE Stenosagola chandleri Park and Carlton des. 2013”. Paratypes (n = 30: 25 males, 5 females). NEW ZEALAND: CENTRAL OTAGO ( CO) : 2♂♂ (1♂, slide-mounted), Pisa Range, L. McKay , 1707m, 16 II 1983, J. C. Matt, grass ( NZAC) ; 1♂, Alexandra, Dunstan Ra. , 1615m, 23 II 1974, J.C. Watt, mixed turf 74/14 ( NZAC) ; DUNEDIN ( DN): 1♀ (slidemounted), Mt. Hut, Lammermoor Range , 26 IV 2009, washed soil sample, soil under moss at base of tor, J. T. Nunn ( JTN) ; FIORDLAND ( FD): 3♂♂, Mt. Barber, 1350m, Wilmot Pass , 23 I 1970, A.C. Eyles, mats 9 swards 70/88 ( NZAC) ; 3♂♂, Turret Ra., Mt. Grey , 1200m, 14 I 1970, G.W. Ramsay, Mats 70/46-7 ( NZAC) ; 1♂, Barrier Ra., Little Red Hill, Mt. Allison , 4 II 1972, J.S. Dugdale, litter 75/52 ( NZAC) ; 1♂, Secretary I, Mt. Grono , 853m, 27 XI 1981, C.F. Butcher, mats moss and tussock 81/186 ( NZAC) ; MARLBOROUGH SOUNDS ( SD) : 1♀, Mt. Stokes , 762m, 12 III 1970, J.I. Townsend, Litter 70/141 ( NZAC) ; MID CANTERBURY ( MC) : 2♀♀, Scotts Saddle, Mt. Hut , 5 II 2007, washed soil sample beech forest, J. T. Nunn ( JTN) ; NELSON ( NN) : 1♀ (slide-mounted), Kahurangi N.P., Mt. Arthur Track, below Mt. Arthur Hut , 1200m, 28 XI 2005, Nothofagus forest, FMHD#2005-049 , berl., leaf litter, A. Solodovnikov and D. Clarke, ANMT site 1157 ( FMNH) ; 1♂, Kahurangi N.P., Mt. Arthur Track, ca. 1400m, 28 XI 2005, above treeline, FMHD#2005- 050 , berl., alpine tussock litter, D. Clarke, ANMT site 1158 ( FMNH) ; 2♂♂, Mt. Arthur , 1341m, 22 III 1971, A.C. Eyles, Mats 71/90 ( NZAC) ; 1♂, Mt. Arthur , 1200m, 20 XI 1969, J.I. Townsend, mats 69/230 ( NZAC) ; 1♂, St. Arnaud Ra. , 1524m, 23 Dec 1964, J.I. Townsend, 64/153; OTAGO LAKES ( OL) : 1♂, Headlong Pk. , 1830m, 13-19 II 1980, J.C. Watt, pit trap 12 ( NZAC) ; 1♂, Headlong Pk. , 1830m, 19 II 1980, J.C. Watt, Litter tussock humus 80/276 ( NZAC) ; 4♂♂, Rees Saddle , 1600m, 14 II 1980, J.S. Dugdale, mixed swards 80/18 ( NZAC) ; 4♂♂, Rees Saddle , 14 II 1980, J.S. Dugdale, Swards 80/19 ( NZAC) .

Etymology. This species is named for the collector of the holotype, D. S. Chandler.

Diagnosis. Stenosagola chandleri is similar in appearance to other members of the connata group but can be distinguished by the shape of the male genitalia ( Fig. 12b ) and the frontal rostral lobe of the female head bearing a pair of blunt processes ( Fig. 12g ).

Description. Length 1.3–1.5 mm ( Fig. 7f–g ). Head: Wingless male head approximately

1.41 times, female 1.42 times longer than wide. Wingless male eye approximately 1.28 times, female 0.46 times as long as temple. Frontal rostral lobe of female head bearing pair of blunt processes with setae present ( Fig. 12g ). Frontal fovea of female head indistinct ( Fig. 12g ). Wingless male antennomeres 3–8 subquadrate, 9 slightly transverse, 10 transverse. Female antennomeres 3–6 subquadrate, 7–10 transverse, 8 slightly smaller than 7. Thorax: Pronotum as long as wide. Wingless male elytra approximately 1.48 times, female 1.33 times longer than pronotum. Wingless male meso- and metaventrites trapezoidal, approximately 1.28 times, female 1.19 times longer than pronotum. Aedeagus: Median lobe extremely long and slender, approximately 3 times broader than paramere ( Fig. 12b ). Paramere symmetrical, setae present anteriorly ( Fig. 12b ).

Distribution. Mid Canterbury ( MC), Nelson ( NN), Marlborough Sounds ( SD), and southern part of South Island, New Zealand ( Fig. 13 , squares).

Habitat. Most specimens were collected by sifting forest litter. One specimen was taken in a pitfall trap, and several specimens were collected from grass tussocks.

Figures

Fig. 12. Stenosagola species. a) S. pseudoconnata, aedeagus, dorsal view, b) S. chandleri, aedeagus, dorsal view, c) S. nunni, aedeagus, dorsal view, d) S. newtoni, aedeagus, dorsal view, e) S. butcheri, aedeagus, dorsal view, f) S. fiordlandensis, aedeagus, dorsal view, g) S. fiordlandensis, wingless male head, dorsal view. Scale bars = 0.1 mm.

Fig. 7. Habitus of Stenosagola species, dorsal view. a) Wingless male of S. tararuaensis, b) Female of S. tararuaensis, c) Wingless male of S. haunuiensis, d) Winged male of S. pseudoconnata, e) Wingless male of S. pseudoconnata, f) Wingless male of S. chandleri, g) Female of S. chandleri, h) Winged male of S. nunni, i) Wingless male of S. nunni, j) Female of S. nunni, k) Wingless male of S. newtoni, l) Winged male of S. butcheri, m) Wingless male of S. butcheri, n) Wingless male of S. fiordlandensis, o) Female of S. fiordlandensis. Scale bars = 1 mm.

Fig. 13. Locations where Stenosagola pseudoconnata (triangles) and Stenosagola chandleri (squares) have been collected in New Zealand.