Holotype ♂ (IFS_SAL_758): Sri Lanka, Southern Province, Galle District, Hiyare, Kombala-Kottawa FR, 252m, 06°03'53"N, 80°18'05"E, beating, 24–26-V-2016, leg. K Nilani and I Sandunika. Paratype. ♀ (IFS_SAL_760): Same locality and collection data as holotype. Other material examined. 1♀ (IFS_SAL_689): same locality and collection data as holotype, 18-V-2010, leg. SP Benjamin and S Batuwita. 3♂, 2♀ (IFS_SAL_742-746): Same locality and collection data as holotype. 2♂, 1♀ (IFS_SAL_970-972): Sabaragamuwa Province, Rathnapura District, Sinharaja FR, Kudawa, 521 m, 06°24'58.26"N, 80°25'25"E, beating, 11–13-X-2016, leg. K Nilani.

The species name a noun in apposition, is derived from the Latin flavum and refers to the yellow coloured scales around AME.

The species is distinguishable from other congeners by the rounded, well-developed LP, longer, straight, tapering RTA in males (Figs 15D, E, 16A, B) and inverted C-shaped CD, well-developed HS (Figs 10C, 16C), and relatively smaller body size in females. It is closely related to P.alborea and P.jesudasi in palpal structure with minor differences including semicircular LP, straight RTA. However, it obviously differs by well-developed HS and inverted C-shaped CD.

Male. In life, prosoma black, decorated with white band in the vicinity of first row of eyes at the anterior margin, clypeus with dense white scales (Fig. 14B). Chelicerae black, with white hairs at its base. Behind PLE, white, prominent diamond-shaped marks present (Fig. 14A–C). Lateral sides of prosoma with white belts (Fig. 14A–C). Posterior margin of prosoma rather steep and slightly truncated. Yellowish brown sternum, oval in shape, edges light brown. First pair of legs blackish and sturdy, other legs yellowish black.

Abdomen oval, moderately long, slightly narrower than prosoma, tapering posteriorly. Dorsum with comparably narrow black, median band, bordered by pale yellow bands extending longitudinally from anterior to posterior end (Fig. 14A–C). Ventrum blackish grey in life and brown with yellowish brown dots longitudinally, arranged from epigastric furrow to spinnerets in preserved specimens (Fig. 15B). Spinnerets black.

Moderately sclerotised pale yellow palp. Distal end of cymbium longer, narrower than proximal region. Embolus slender, long immovable, on rather broad apical portion of bulbus, extending to distal end of cymbium (Figs 15D, E, 16A, B). Lamellar process well developed, large, lying immediately below embolus (Figs 15D, 16A). Bulbus longer than wide. Sperm duct clearly visible at the antero-lateral portion of bulbus. Retrolateral portion of bulbus with small bump. Tegulum with posterior lobe. RTA long nearly half-length of the bulbus, broader at the base, narrower, hook-shaped at the tip (Figs 15D–E, 16A, B).

Measurements.TL 4.70, PL 2.20, PW at PLE 1.52, AL 2.40, AW 1.30. Eye field: diameter of AME 0.51, PLE 0.33, ALE 0.25, PME 0.12, PME-PME 1.20, PLE-PLE 0.66, ALE-PME 0.32, ALE-PLE 0.66. Leg I: TR 0.35, FM 2.25, PT 1.00, TB 1.88, MT 1.54, TA 0.81; Leg II: TR 0.24, FM 1.72, PT 0.76, TB 1.50, MT 0.84, TA 0.81; Leg III: TR 0.34, FM 1.87, PT 0.80, TB 1.24, MT 1.21, TA 0.50; Leg IV: TR 0.32, FM 1.78, PT 0.63, TB 1.33, MT 1.57, TA 0.60.

Female. Prosoma sparsely covered with white hairs and decorated with three pairs of large, black blotches, surrounding PME, PLE, ocular area, and posterior slope of prosoma (Fig. 14D–F). Pale brown AME covered with white hairs anteriorly and yellowish hairs posteriorly (Fig. 14F). Clypeus enclosed with dense white scales. Chelicerae unidentate, orange brown. Sternum yellow, with pale yellow hairs. In ethanol preserved specimen, carapace yellow with black patches.

Abdomen white, leaf-shaped, longer, slightly broader than prosoma. Dorsum with two lateral dark green streaks, elongating longitudinally along the whole length of the abdomen (Figs 14D–F). Ventrum with white scales, devoid of any markings in life. Spinnerets pale yellow. Legs glassy greenish yellow.

Epigynum moderately sclerotised. Copulatory openings located laterally inside duck-neck-shaped diverging curves. Copulatory ducts twisted, diverge initially and then bending inward to form a much broader duck-neck-shaped diverging curves leading to the copulatory openings (Figs 10C, D, 16C, D). Comparably large, oval spermathecae with head-like structure placed closely to each other (Figs 13D, 16C, D). Fertilisation ducts lanceolate originating from apical wall of receptacles (Figs 13D, 16D). Posterior epigynal border rather broad.

Measurements.TL 4.63, PL 2.11, PW at PLE 1.88, AL 2.50, AW 1.32. Eye field: diameter of AME 0.52, PLE 0.33, ALE 0.25, PME 0.12, PME-PME 1.22, PLE-PLE 0.66, ALE-PME 0.35, ALE-PLE 0.68. Leg I: TR 0.27, FM 2.14, PT 0.91, TB 1.84, MT 1.62, TA 0.70; Leg II: TR 0.28, FM 1.65, PT 0.70, TB 1.40, MT 0.85, TA 0.84; Leg III: TR 0.34, FM 1.82, PT 0.74, TB 1.23, MT 1.24, TA 0.55; Leg IV: TR 0.30, FM 1.84, PT 0.66, TB 1.26, MT 1.54, TA 0.66.

This species is known only from Sri Lanka.