Sagola marrisi 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 : 121

Sagola marrisi Park and Carlton , new species

( Figs. 66c, 66i, 66q , 67 )

Type Material. Holotype. NEW ZEALAND: Three Kings Islands : 1♂ ( NZAC), aedeagus dissected and mounted in balsam on a clear plastic card, “ New Zealand: TH: Castaway Camp 29 XI 1970, G.W. Ramsay Litter 70/234”, “ HOLOTYPE Sagola marrisi Park and Carlton 2013 ” . Paratypes (7 males). NEW ZEALAND: Three Kings Islands : 7♂♂ ( NZAC), same data as holotype .

Etymology. This species is named for one of the enthusiastic supporters of this study, John Marris. He provided many valuable specimens from South Island.

Diagnosis. This species can be distinguished from the other species of the major species-group by the following combination of characters: body length 2.2–2.4 mm; eye one-half length of temple; ventral temple of male head with depressed and weakly projecting temporal lobe and surface bearing small process; pair of thick, dense setae on gular depression; shape of antennomeres and genitalia unique to species; only known from Three Kings Islands.

Description of Male. Length 2.2–2.4 mm. Body brown, antennae, legs, maxillary palpi, and elytra paler ( Fig. 66c ). Head: Bluntly triangular, widest across eyes ( Fig. 66c ). Ventral temple of head with depressed and weakly projecting temporal lobe and surface bearing small process ( Fig. 66q ). Pair of thick, dense setae on gular depression. Antennomere 1 approximately 2 times longer than wide with dull surface, 2 longer than wide, 3–10 subquadrate. Frontal sulcus shallow, reaching midpoint of eye. Anterior frontal fovea oval, partially covered by frontal rostrum, posterior frontal fovea oval. Eye prominent, one-half length of temple. Thorax: Prosternum as long as wide, widest at one-third length. Elytra rectangular ( Fig. 66c ). Meso- and metathorax trapezoidal, longer than wide. Abdomen: Tergite IV with pair of transverse patches of microtrichia reaching middle. Aedeagus: Median lobe of genitalia rectangular with tube extending from apex ( Fig. 66i ). Phallobase of median lobe symmetrical and rounded ( Fig. 66i ). Parameres symmetrical, broader than median lobe, setose from midpoints to apices ( Fig. 66i ).

Distribution. Three Kings Islands ( Fig. 67 : black square).

Habitat. Specimens of this species were collected by sifting leaf litter.

Figures

Fig. 66. Sagola species in the major species-group. Habitus, dorsal views: a) S. major, b) S. triregia, c) S. marrisi, d) S. boothi, e) S. prowellae, f) S. mackenziensis. Aedeagi, dorsal views: g) S. major, h) S. triregia, i) S. marrisi, j) S. boothi, k) S. prowellae, l) S. mackenziensis. S. major, male: m) Fore femur (arrow indicates trochanter), n) Dorsal surface of head. Male heads, ventral views: o) S. major, p) S. triregia, q) S. marrisi, r) S. boothi, s) S. prowellae, t) S. mackenziensis. Scale bars a–f = 1 mm, g–t = 0.1 mm.

Fig. 67. Known collection localities of New Zealand Sagola species. S. major: black circles; S. triregia: triangle; S. marrisi: black square; S. boothi: star; S. prowellae: white circle; S. mackenziensis: white squares.