Sagola brouni 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 : 23

Sagola brouni Park and Carlton , new species

( Figs. 8c, 8g , 10 )

Type Material. Holotype. NEW ZEALAND: Auckland: 1♂ ( NZAC), aedeagus dissected and mounted in balsam on a clear plastic card, “19.ix.51 La Roy’ s Bush Birkenhead N.I. P282”, “ N.Z. Arthropod Collection, NZAC Private Bag 92170 AUCKLAND New Zealand”, “ HOLOTYPE Sagola brouni Park and Carlton 2013 ” . Paratype (1 male). NEW ZEALAND: Coromandel : 1♂ ( NZAC), Little Barrier Island , 31 XII 1951, rotten wood, P622 .

Etymology. This species is named for the most influential pioneer of the study of New Zealand Coleoptera , including Faronitae , Thomas Broun.

Diagnosis. This species can be distinguished from the other species of the rugifrons speciesgroup by the following combination of characters: larger body, length 3.0– 3.4 mm; weakly transverse head; antennomere 1 approximately 2.5 times longer than wide, 2–7 subquadrate, 8–10 transverse; elongate posterior frontal fovea surrounded by dense setae; ventral surface of male head with weak pair of short carinae behind eyes; shape of genitalia unique to species.

Description of Male. L e n g t h 3. 0 –3.4 m m. Body brown, elytra, legs, and maxillary palpi paler ( Fig. 8c ). Head: Slightly transverse, widest across eyes ( Fig. 8c ). Ventral surface of male head with weak pair of short carinae behind eyes. Antennomere 1 approximately 2.5 times longer than wide, 2–7 subquadrate, 8–10 transverse. Frontal sulcus deep and reaching hind point of eye from frontal rostral lobes. Anterior frontal fovea round. Posterior frontal fovea elongate, surrounded by dense setae. Eye small and prominent, one-third length of temple. Thorax: Prosternum as long as wide, widest at midpoint. Elytra rectangular ( Fig. 8c ). Hind wings welldeveloped. Meso- and metathorax trapezoidal, longer than wide. Abdomen: Tergite IV with pair of transverse patches of microtrichia reaching middle. Aedeagus: Median lobe longer than parameres, forked into 3 lobes, major apical lobe bulbous with 9 branches apically ( Fig. 8g ). Phallobase of median lobe symmetrical and rounded ( Fig. 8g ).

Distribution. Auckland ( Fig. 10 ; triangles).

Habitat. Specimens of this species were collected by sifting rotten wood litter.

Figures

Fig. 8. Sagola species in the rugifrons species-group. Habitus, dorsal views: a) Sagola rugifrons, b) S. waipouaensis, c) S. brouni, d) S. plentyensis. Aedeagi, dorsal views: e) S. rugifrons, f) S. waipouaensis, g) S. brouni, h) S. plentyensis. S. waipouaensis, male head: i) Dorsal surface, j) Ventral surface (arrow indicates bean-shaped opening). Scale bars a–d = 1 mm, e–j = 0.1 mm.

Fig. 10. Known collection localities of New Zealand Sagola species. S. waipouaensis: black circles; S. brouni: triangles; S. plentyensis: black squares.