Papuaneon tapin, Richardson, 2022

Richardson, Barry J., 2022, The jumping spider genus Papuaneon Maddison, 2016 (Araneae: Salticidae) in Australia, Zootaxa 5150 (1), pp. 129-147 : 141-143

Papuaneon tapin n. sp.

Figs 40–52

Type material. Holotype: ♀, Tapin National Park, vicinity of Rowleys Rock , New South Wales, 152.17E. 31.65S. G.A. Williams, T. Williams, 30 Jan. 2018 ( AMS KS 129678 . Paratypes: New South Wales: 1♂ 1♀, Cobark Forest Park, Barrington Tops , 151.60E, 31.90S, I.D. Naumann, 11 Feb. 1984 ( ANIC 42 000077) ; 2♀, 6 imm., Cobark Forest Park, Barrington Tops , NSW. 151.60E, 31.90S. I.D. Naumann, 11 Nov. 1984 ( ANIC 42 000997) ; 1♀, Mt Boss SF (Valley), 152.4E 31.2S G. Webb, 1 Oct. 1980 ( AMS KS 17692 ) .

Etymology: Refers to the name of the type locality, treated as a noun in apposition.

Diagnosis: Lateral receptacles of the spermathecae do not extend forwards beside the atria. Lateral spermathecal receptacles are much larger than the medial receptacles with a broad joint between them. There is a curved transverse cleft between the receptacles.Atria, including copulatory openings, are wide apart and directly anterior to the lateral spermathecal receptacles, and are about the same size as the medial receptacles. Legs and palps are off-white in color. The abdomen is without large lateral bulges. The cymbium is rounded with a pair of darker spines. Palps and cymbium have sparse coverings of long grey hairs. Males are 50% larger with darker color than females. L1 is with black fringe on ventral tibia and femur. Palp is mid brown with an off-white cymbium. Embolus is short and straight, arising from a triangular base and moving immediately in a distal direction. Tibial apophysis is vestigial.

Description. Female: Cephalothorax light to mid-brown may have a fine layer of guanine within the pars cephalica. Surrounds of ALE, PME and PLE, black. Pars thoracica without markings but sides darker and with a scattering of white hairs. Clypeus narrow, light brown, with a thin fringe of gray hairs. Chelicerae receptacleous, mid-brown. Two promarginal teeth and one small and sharp retromarginal tooth. Endites and labium off-white, brown at base. Sternum yellow. Dorsal abdomen heart-shaped, light brown with grey, striped patterning. Spinnerets light brown above, grey below. Ventral abdomen off-white. Palps narrow, pointed distally, light brown, metatarsi grading to off-white and a sparse covering of long grey hairs. Tibial apophysis vestigial. Legs dark brown with light brown tarsi. Large strong spines, L1 similar build to other legs, with a sparse fringe on ventral tibia. Epigynum: The copulatory openings are in the centre of a pair of sclerotised atria. Distinct, well-sclerotised guides are absent. The well separated atria are placed a short distance anterior to, and in line with, the lateral spermathecal receptacles. The insemination ducts pass between the medial and lateral receptacles of the spermathecal close to the mid line. The ducts open into the spermatheca, close to the broad connection between the lateral and median receptacles. The spermathecae are placed close to the epigastric fold and the receptacles are unequal in size. The lateral, very large, sausage-shaped, receptacle curves into a ‘c’ shape close to the median line, as it joins the median receptacle. The lateral receptacles do not move distally up the lateral sides of the atria. Fertilization ducts are entirely hidden but presumably extend from openings in the middle of the dorsal surface of the median receptacles as in other species. Dimensions (Holotype): CL 1.2, EFL 0.55, AL 1.55, CW 1.25, AEW 1.25, AMEW 0.7, PEW 1.15, L1 2.85 (1.0+0.45+0.6+0.4+0.35), L2 2.1 (0.5+0.45+0.5+0.3+0.35), L3 2.55 (0.75+0.45+0.45+0.45+0.45), L4 3.0 (0.95+0.4+0.6+0.6+0.45).

Male: As for female. Clypeus may be covered with white guanine, pars thoracica with striae of long white hairs. L1 with black fringe on ventral tibia, patella and femur. Palp: light brown, tibia with single small, sharply pointed epiphysis. Cymbium off-white. Each short, straight embolus arises from a triangular base and moves immediately in a distal direction. Small tegular shelf present but the base of the embolus not obscured. Dimensions (Paratype): CL 2.05, EFL 0.95, Al 2.0, CW 1.75, AEW 1.7, AMEW 1.0, PEW 1.65, L1 4.9 (1.65+0.75+1.25+0.75+0.5), L2 3.05 (0.65+0.65+0.75+0.65+0.35), L3 3.25 (0.8+0.6+0.6+0.75+0.5), L4 3.5 (1.5+0.3+0.5+0.75+0.45).

Distribution and Biology. Known from a limited area of high country in north-eastern New South Wales ( Fig. 52 ), may be at risk from climate change, present IUCN Red List Category DD.

Figures

FIGURES 40–46. Papuaneon tapin n. sp. Female (42 000997): 40 dorsal, 41 ventral, 42 lateral, 43 anterior views; epigyne: 44 external view; semi-diagrammatic views of a dissected and cleared specimen (45 ventral, 46 dorsal views). Scale: 0.2 mm.

FIGURES 47–52. Papuaneon tapin n. sp. Male (42 000077): palp 47 posterior, 48 ventral, 49 anterior views; 50 anterior, 51 fringing on L1; 52 map showing the known distribution. Scale: 0.2 mm.