Pseudoexeirarthra puncticollis (Broun)

Park, Jong-Seok & Carlton, Christopher E., 2015, Pseudoexeirarthra, a new genus from New Zealand (Coleoptera, Staphylinidae, Pselaphinae), with descriptions of seven new species, ZooKeys 491, pp. 95-118 : 103

Taxon classification Animalia Coleoptera Staphylinidae

Pseudoexeirarthra puncticollis (Broun) Figs 1C, 3C, 4

Sagola puncticollis Broun, 1911: 499. Hudson 1923: 365; 1934: 183. Raffray 1924: 232. Newton and Thayer 2005. Nomura and Leschen 2006: 243.

Type material.

Holotype. New Zealand: South Canterbury (SC): 1♂ (BMNH), glued on rectangular card, “Type” [red label, printed]; “3370.” [white label, handwritten]; "New Zealand Broun Coll. Brit. Mus. 1922-482." [white label, printed]; "Timaru. -Wallace." [white label, hand written]; " Sagola puncticollis " [white label, handwritten].

Additional material

(n = 34; 29 males, 5 females). New Zealand: Mackenzie (MK): 8♂♀, White Horse Hill, Mt. Cook, 26 X 2009, J. Nunn, litter in podocarp forest (JTN); 1♂, White Horse Hill, Mt. Cook, 25 X 2009, J. Nunn, litter in podocarp grove (JTN); South Canterbury (SC): 18♂♀, Gunns Bush, Waimate, 23 XII 2006, washed soil in broadleaf forest, J. Nunn (JTN); 1♂ 1♀, Orari Gorge SR, Geraldine, 7 VI 2009, J. Nunn, washed soil in broadleaf forest (JTN); 1♀ (slide-mounted), Pioneer Park, Raincliff, 9 VIII 2009, J. Nunn, washed soil in totara and kahikatea forest (JTN); 1♂, Kelceys Bush, Waimate, 20 I 1966, J. I. Townsend, moss; 1♀, Mt. Dalgety, 1737 m, 19 I 1966, G. W. Ramsay, J. I. Townsend, moss (NZAC).

Diagnosis.

This species is distinguished from the other species of this genus by the following combination of characters: body length 2.3-2.6 mm; eyes one-half lengths of temples (Fig. 1C); antennomeres 2-5 longer than wide, 6-10 subquadrate; median lobe of male genitalia divided, major lobe triangular, minor lobe slightly longer and unequally laterally tuberculate near apex (Fig. 3C); parameres nearly symmetrical, setae present from apices to middle (Fig. 3C).

Redescription.

Length 2.3-2.6 mm. Body reddish brown, antennae, legs, maxillary palpi and elytra paler (Fig. 1C). Head round, as long as wide, widest across eyes (Fig. 1C). Antennomere 1 approximately 1.5 times longer than wide, 2-5 longer than wide, 6-10 subquadrate. Eyes one-half lengths of temples. Prosternum as long as wide, widest at apical one-third. Elytra longer than wide (Fig. 1C). Hind wings fully developed. Meso- and metaventrites trapezoidal, longer than wide. Tergite IV with pair of transverse patches of microtrichia reaching middle. Median lobe of genitalia divided, apical lobe triangular, minor lobe slightly longer covered with tubercles (Fig. 3C). Phallobase symmetrical and rounded (Fig. 3C). Parameres symmetrical, setae present from apices to middle (Fig. 3C).

Type locality.

Timaru (SC), New Zealand.

Distribution.

Mackenzie (MK), South Canterbury (SC) (Fig. 4: black squares).

Habitat.

Specimens were collected by soil washing and sifting moss litter in broadleaf or podocarp forests.