Sagola gisbornensis 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 : 18-19

Sagola gisbornensis Park and Carlton , new species

( Figs. 3n , 4n , 7 )

Type Material. Holotype. NEW ZEALAND: Gisborne: 1♂ ( NZAC), aedeagus dissected and mounted in balsam on a clear plastic card, “ New Zealand: GB: Lake Waikaremoana 17 I 1972, G.W. Ramsay Litter 72/20”, “ HOLOTYPE Sagola gisbornensis Park and Carlton 2013 ” . Paratype (1 male). NEW ZEALAND: Waikato : 1♂ ( NZAC), Okauia, 28 XII 1947, Leaf-mould, A. E. Brookes .

Etymology. The species name is based on the biotic region of the type locality, Gisborne.

Diagnosis. This species can be distinguished from the other species of the hirtalis speciesgroup by the following combination of characters: smaller body size, 2.0– 2.5 mm; antennomere 1 elongate, approximately 2 times longer than wide; antennomeres 4–5 subquadrate, approximately 1.5 times longer than wide; posterior frontal fovea oval; eye large, as long as temple; hind wings well-developed; mid-femur with semicircular depression; mid-tibia bent; shape of genitalia unique to species.

Description of Male. Length 2.0 – 2.5 mm. Body brown, elytra, legs, and maxillary palpi paler ( Fig. 3n ). Head: As long as wide, widest across eyes ( Fig. 3n ). Antennomere 1 approximately 2 times longer than wide, 2–3 subquadrate, 4–5 longer than wide, 6–10 subquadrate. Frontal sulcus deep and reaching hind point of eye from end of frontal rostral lobes. Anterior frontal fovea oval, posterior frontal fovea oval. Eye large and prominent, as long as temple. Thorax: Prosternum as long as wide, widest at one-third length. Elytra rectangular and at least 1.5 times longer than wide ( Fig. 3n ). Hind wings well-developed. Meso- and metathorax trapezoidal, longer than wide. Midfemur with semicircular depression. Mid-tibia bent. Abdomen: Tergite IV with pair of transverse patches of microtrichia reaching middle. Aedeagus: Median lobe longer than parameres ( Fig. 4n ). Phallobase of median lobe asymmetrical and triangular ( Fig. 4n ). Left paramere L-shaped and longer than right. Right paramere divided into 3 branches from base ( Fig. 4n ).

Distribution. Gisborne, Waikato ( Fig. 7 : triangles).

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

Figures

Fig. 3. Habitus of Sagola species in the hirtalis species-group, dorsal views. a) Sagola hirtalis, b) S. terricola, c) S. convexa, d) S. coromandelensis, e) S. northlandensis, f) S. taranakiensis, g) S. kuscheli, h) S. newtoni, i) S. thorpei, j) S. dugdalei, k) S. thayerae, l) S. hunuaensis, m) S. waikatoensis, n) S. gisbornensis, o) S. weiri, p) S. brookesi. Scale bars = 1 mm.

Fig. 4. Sagola species in the hirtalis species-group. Aedeagi, dorsal view: a) S. hirtalis, b) S. terricola, c) S. convexa, d) S. coromandelensis, e) S. northlandensis, f) S. taranakiensis, g) S. kuscheli, h) S. newtoni, i) S. thorpei, j) S. dugdalei, k) S. thayerae, l) S. hunuaensis, m) S. waikatoensis, n) S. gisbornensis, o) S. weiri, p) S. brookesi. S. hirtalis: q) Antenna, r) Head, dorsal view, s) Head, ventral view (arrow indicates transverse depression). S. terricola: t) Meso- and metaventrite, u) Male fore femur (arrow indicates semicircular depression). Scale bars = 0.1 mm.

Fig. 7. Known collection localities of New Zealand Sagola species. S. waikatoensis: black circle; S. gisbornensis: triangles; S. weiri: black square; S. brookesi: star.