Proszynskia diatreta (Simon, 1902) Simon, 1902

Kanesharatnam, Nilani & P. Benjamin, Suresh, 2019, Multilocus genetic and morphological phylogenetic analysis reveals a radiation of shiny South Asian jumping spiders (Araneae, Salticidae), ZooKeys 839, pp. 1-81 : 1

Proszynskia diatreta (Simon, 1902) comb. n. Figs 23 E–H, 24 A–E, 25 A–E, 26 A–D

Viciria diatreta Simon, 1902: 366; Prószyński 1984: 433, figs 42-43; Caleb and Mathai 2014: 65, figs 38-46.

Phintella diatreta (Simon, 1902): Caleb 2016: 274.

Remarks.

This species was recently transferred to Phintella by Caleb (2016). However, it differs from most Phintella by general appearance, body size, as well as palpal structure including shape of PLT, narrowed distal part of the tegulum, comparably straight embolus, pyriform spermathecae, and origin of FD through funnel-like structures on the mid-dorsal wall of receptacles. Further, our molecular data of single and combined gene analysis corroborates its placement outside of Phintella .

Material examined.

1♂ (IFS_SAL_520), Sri Lanka, Eastern province, Batticaloa District, Sallimunai, 4km North of Panichchankerni, Sea level, 08°06'37"N, 81°27'20"E, 07-09-VIII-2010, leg. SP Benjamin and S Batuwita. 1♀ (IFS_SAL_539), Northern Province, Vavuniya District, Poonthottam, Home gardens, 98 m, 08°46'12.95"N, 80°30'32.81"E, hand collection, 27.X.2015, leg. K Nilani. 1♂ (IFS_SAL_861), same locality and collection data, 18-VII-2016. 4♂, 1♀ (IFS_SAL_1011- 1015), same locality and collection data, 13-I-2017.

Diagnosis.

This species is distinguishable from Proszynskia anusuae comb. n. by the sclerotised structures from spermathecae and funnel-like unusual structures connecting spermathecae and FD (Figs 25D, E, 26C, D).

Description.

Male. Prosoma black, decorated with greenish yellow patches on the ocular region, a patch between the AME, two lateral patches placed between PLE and PME (Fig. 23 E–G; Caleb and Mathai 2014: figs 38, 40, 41). Ocular field slightly elevated. Behind PLE, there is a white, prominent diamond-shaped mark. (Figs 23E, G). Lateral sides of prosoma decorated with white belts (Figs 23 E–G; Caleb and Mathai 2014: figs 38, 40). Clypeus covered with black scales (Fig. 23H). Chelicerae black with two promarginal and one retromarginal teeth, labium black in colour. Sternum oval, greyish yellow. Posterior margin of prosoma rather steep and slightly truncated. Leg I dark blackish yellow and robust with black femur and white hairs dorsally, ventral portion of femur II covered with black scales, others blackish yellow.

Abdomen longer and slightly narrower than prosoma, tapering posteriorly. Dorsum with narrow pale yellow median band, surrounded by two black bands bordering with pale yellow lateral bands extending longitudinally from anterior to posterior end (Fig. 23 E–G; Caleb and Mathai 2014: fig. 38). Ventrum blackish grey in life ( Caleb and Mathai 2014: fig. 39) and yellowish brown in preserved specimens (Fig. 24B). Spinnerets greenish yellow.

Brownish yellow palp. Cymbium narrows at the distal region. Embolus straight and robust, immovable on rather broad apical portion of tegulum (Figs 24D, 25A). LP absent. Bulbus longer than wide. Spermatophore loop clearly visible at the shoulder of tegulum. Small bulge at retrolateral portion of bulbus. Tegulum with prolaterally expanded proximal lobe. RTA broader at the base, narrower and bent forward at the tip (Figs 24 D–E, 25A, B).

Measurements.TL 7.00, PL 3.15, PW at PLE 2.80, AL 3.90, AW 2.00. Eye field: diameter of AME 0.53, PLE 0.28, ALE 0.30, PME 0.05, PME-PME 1.32, PLE-PLE 1.20, ALE-PME 0.38, ALE-PLE 0.78. Leg I: TR 0.35, FM 1.92, PT 0.88, TB 1.73, MT 1.18, TA 0.75; Leg II: TR 0.30, FM 1.71, PT 1.00, TB 1.22, MT 1.12, TA 0.68; Leg III: TR 0.28, FM 1.73, PT 0.72, TB 1.10, MT 1.10, TA 0.74; Leg IV: TR 0.30, FM 1.93, PT 0.80, TB 1.32, MT 1.21, TA 0.82.

Female. Almost all somatic characters similar to male except shape of the mark behind PLE and comparably less strong first pair of legs (Fig. 26A, B). Epigynum highly sclerotised. Spermathecae large and pear-shaped (Figs 25D, E, 26C, D). Position of copulatory openings remains unclear. Copulatory ducts short and bent inward dorsally. FD lanceolate, opening in funnel-like structures in the mid-dorsal wall of receptacles (Figs 25E, 26D). Posterior margin characterised with moderately sclerotised scapum from which two sclerotised structures running parallel and fused with anterior wall of spermathecae (Figs 25D, 26C).

Measurements.TL 8.45, PL 3.75, PW at PLE 3.30, AL 4.60, AW 2.70. Eye field: diameter of AME 0.55, PLE 0.28, ALE 0.35, PME 0.05, PME-PME 1.35, PLE-PLE 1.20, ALE-PME 0.38, ALE-PLE 0.78. Leg I: TR 0.36, FM 1.90, PT 0.80, TB 1.63, MT 1.18, TA 0.76; Leg II: TR 0.30, FM 1.75, PT 1.00, TB 1.32, MT 1.15, TA 0.66; Leg III: TR 0.26, FM 1.75, PT 0.70, TB 1.15, MT 1.15, TA 0.70; Leg IV: TR 0.35, FM 1.89, PT 0.85, TB 1.30, MT 1.20, TA 0.80.

Distribution.

India and Sri Lanka (new record).