Sagola snaresensis Park and Carlton, new species

Sagola snaresensis Park and Carlton, new species

(Figs. 76b, 76d, 76f, 78)

Type Material. Holotype. NEW ZEALAND: Snares Islands: 1♂ (NZAC), “New Zealand: SN: Penguin Ck. In wet Olearia lyallii 26 Oct 1972, DS Horning”, “ HOLOTYPE Sagola snaresensis Park and Carlton 2013 ”. Paratypes (n = 22: 10 males; 12 females). NEW ZEALAND: Snares Islands : 1♀ (NZAC), same data as holotype; 2♂♂ 4♀♀ (NZAC), Penguin Ck, rotten wood of Olearia lyallii stump, 11 III 1971, D.S. Horning; 2♂♂ 1♀ (NZAC), Signpost Hill, Stilbocarpa robusta litter, 26 VIII 1972, D.S. Horning; 2♂♂ (NZAC), Broughton I, Stilbocarpa robusta, 4 XI 1972, D.S. Horning; 1♂ (NZAC), sw Promontory, Olearia lyallii litter, 31 VII 1972, D.S. Horning; 2♂♂ (NZAC), Penguin Creek, 14 XII 1974, D.S. Horning, under branches of Olearia lyallii; 2♀♀ (NZAC), nr Penguin Colony, 19 I 1972, C.J. Horning, rotten Olearia lyallii; 1♀ (NZAC), Opp Mollymauk Islet, 24 I 1967, P.M. Johns, beating Poa astonii; 1♀ (NZAC), Penguin Creek, 26 X 1972, D.S. Horning, wet Olearia lyallii litter; 1♀ (AMNZ), nr Razorbark, 15 XII 1976, J.W. Early, under loose rock on peat; 1♀ (NZAC), Rocky Islet, 28 II 1971, D.S. Horning, Tillaea moscha sample from rotten granite.

Etymology. This species is named after the type locality, Snares Islands.

Diagnosis. This species can be distinguished from other Sagola species by the following combination of characters: body small, length 2.2–2.5 mm; anterior frontal fovea round and partially covered by frontal rostrum, posterior frontal fovea round; eye small, one-third length of temple; shape of antennomeres and genitalia unique to species; only known from Snares Islands.

Description. Length 2.2–2.5 mm. Body brown, antennae, legs, maxillary palpi, and elytra paler (Fig. 76b). Head: Male head round, widest across eyes (Fig. 76f). Antennomere 1 approximately 1.5 times longer than wide, 2 longer than wide, 3 subquadrate, 4–6 longer than wide, 7–10 subquadrate. Frontal sulcus shallow reaching midpoint of eye (Fig. 76f). Anterior frontal fovea round, partially covered by frontal rostrum, posterior frontal fovea round (Fig. 76f). Eye small, one-third length of temple (Fig. 76f). Thorax: Prosternum as long as wide, widest at midpoint. Elytra approximately as long as wide (Fig. 76b). Meso- and metathorax trapezoidal, as long as wide. Abdomen: Male tergite IV without patch of microtrichia. Male ventrite VII with round depression. Aedeagus: Median lobe of genitalia bluntly triangular (Fig. 76d). Phallobase of median lobe symmetrical and rectangular (Fig. 76d). Parameres symmetrical, with thick setae from apex to middle (Fig. 76d).

Distribution. Snares Islands (Fig. 78: black square).

Habitat. Specimens of this species were collected mostly by sifting leaf and wood litter of Olearia lyallii Hook. f (Asteraceae) or Stilbocarpa robusta (Kirk) Cockayne (Araliaceae).