Iranattus rectangularis Proszynski 1992
Creators: name: Marathe, Kiran
name: Tripathi, Rishikesh
name: Sudhikumar, Ambalaparambil V.
name: Maddison, Wayne P.
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Salticidae
Iranattus
Iranattus rectangularis

description: Iranattus rectangularis Prószyński, 1992
Figs 20 – 23, 24 – 29, 30 – 33, 34–41
Iranattus rectangularis Prószyński, 1992 a: 97, f. 35 – 40.
Materials examined.
1 ♂, 1 ♀, & 4 juveniles. From INDIA: RAJASTHAN: Jaisalmer: Thar Desert: Desert National Park, Myajlar area, 26.28 ° N, 70.40 ° E, 275 m elev., 20 Aug 2022, leg. R. Tripathi.
Diagnosis.
Smaller than I. principalis, with a bright orange face and erect hairs on the carapace, an angular tegulum with a prominent shoulder, a simple RTA, and a simple spermatheca with copulatory ducts ventrally.
Description.
♂ (NRC-AA- 7708). Measurements: Carapace 1.46 long, 1.26 wide. Abdomen length 1.32, width 0.86. Leg measurements: Leg I 2.04 [0.69, 0.33, 0.48, 0.32, 0.22], leg II 1.88 [0.67, 0.33, 0.44, 0.28, 0.16], leg III 3.56 [1.52, 0.55, 0.72, 0.43, 0.34], leg IV 1.94 [0.70, 0.31, 0.34, 0.38, 0.24. Leg formula: III – I – IV – II. Carapace wider than abdomen. Ocular area shaped like an isosceles trapezoid, narrow at the anterior eye row and wide at the PLEs. PLEs on tubercles. Thoracic area slopes acutely downward behind ocular area. Ocular area from base of front eyes to PMEs orange, covered with black hairs, posterior with pale hairs. Pale erect hairs on ocular area. Pale hair patch beneath PMEs. Black hair band starts anteriorly, encircles carapace at ocular area edge. White band along lateral edge, narrow front, broadens posteriorly and behind. Clypeus narrow. Orange, covered with pale hairs, more densely near integument edge. Chelicerae vertical, narrow, yellowish brown. Palp (Figs 20, 21, 24 – 27): Embolus medium-long, starting at 9 o’clock, somewhat thick. RTA stout, short with blunt tip. Cymbium extends retrolaterally to form scoop-shaped apophysis. Tegulum prolaterally rounder; retrolaterally angular at distal and proximal edges. Legs: III femur distinctly long relative to others. Femur yellowish, distal segments yellowish covered with black hair. Abdomen narrow, ovoid. Brown with gray hair overlay. Spinnerets brown.
♀ (NRC-AA- 7709). Measurements: Carapace 1.91 long, 1.56 wide. Abdomen length 1.83, width 1.27. Leg measurements: Leg I 2.67 [0.95, 0.53, 0.56, 0.36, 0.27], leg II 2.41 [0.85, 0.47, 0.50, 0.32, 0.27], leg III 4.30 [1.78, 0.70, 0.92, 0.50, 0.40], leg IV 2.44 [0.87, 0.40, 0.42, 0.44, 0.31]. Leg formula III – I – IV – II. Carapace shape similar to male. Ocular area orange anteriorly, white hairs sparsely posteriorly. Pale erect hairs on ocular area. Thoracic slope covered with black hairs. Lateral sides covered with pale hairs, almost merging behind. Clypeus similar as in male. Chelicerae similar to male. Legs similar to male. Abdomen shape comparable to male, but with a ‘ kite’ - shaped black color pattern between posterior edge and median. Epigyne (Figs 22, 23, 28 – 29): Medially located copulatory opening flanked by conical-shaped ECP.
Natural history.
Iranattus rectangularis was collected from the branches of non-native Vachellia tortilis alongside artificial water canals in the Desert National Park, a xeric and desert ecosystem located in Rajasthan, India (Figs 42, 43). The mosaic of orange, black, and grey body coloration helps them blend in with the branches, making them inconspicuous, except that in the field, the orangish faces of males (Fig. 34) sometimes stood out.
Distribution.
Iran, India (Rajasthan).
Discussion.
Iranattus rectangularis is reported for the first time east of Iran, in western India. This seemingly ‘ disjunct’ distributional pattern is quite possibly due to a lack of collecting between the sites and mirrors that of Stenaelurillus marusiki Logunov, 2001 (Salticidae: Aelurillina), where the type locality of S. marusiki is Iran. However, it has been reported much farther southeast in Maharashtra, India (Marathe et al. 2022). With the transfer of Iranattus to Plexippina, the subtribe now contains 35 genera, and the number of plexippines in India stands at 47 species and 18 genera.
description: Published as part of Marathe, Kiran, Tripathi, Rishikesh, Sudhikumar, Ambalaparambil V. & Maddison, Wayne P., 2024, Phylogenomic placement and revision of Iranattus Prószyński, 1992 jumping spiders (Salticidae, Plexippini, Plexippina), pp. 531-542 in Zoosystematics and Evolution 100 (2) on pages 531-542, DOI: 10.3897/zse.100.122034