Onomastus

Benjamin, Suresh P. & Kanesharatnam, Nilani, 2016, Description of three new species of the tropical Asian jumping spider genus Onomastus Simon, 1900 from high altitude cloud forests of Sri Lanka (Araneae: Salticidae), Zootaxa 4205 (5), pp. 431-453 : 443

Key to adult females of Sri Lankan Onomastus

1. S irregular in shape, with inverted u-shaped epigynal bars ( Benjamin 2010: fig. 10e)..................... O. nigricauda

- S otherwise, epigynal bars absent.........................................................................2

2. S rounded............................................................................................3

- S oval...............................................................................................4

3. S with shallow indentation on mid-lateral wall, broad AEB, sclerotized hood-like structure, curved atrium rim ( Figs 5 C, D)................................................................................... O. corbetensis sp. nov.

- S without any indentation, rounded ( Benjamin 2010: figs 26d, e)..................................... O. rattotensis

4. S bean-shaped, large with mid-longitudinal sclerotized bars, large atrium rim ( Figs 2 C, D)......... O. jamestaylori sp. nov.

- S inverted pear-shaped.................................................................................5

5. Epigyne broad, well sclerotized, with broad AEB, large atrial rim ( Figs 8 C, D)................... O. maskeliya sp. nov.

- Epigyne narrower, without AEB..........................................................................6

6. FD large and lanceolate ( Benjamin 2010: figs 21b, c)............................................ O. pethiyagodai

- FD small and filamentous ( Benjamin 2010: figs 24c, d)......................................... O. quinquenotatus

Figures

FIGURE 2. Onomastus jamestaylori sp. nov. A. Left palp, ventral view. B. Same, retrolateral view. C. Epigyne, ventral view. D. Vulva, dorsal view. Abbreviations: AR. Atrial rim; C = conductor; CY = cymbium; E = embolus; EG = embolic guide; FD = fertilization duct; MA = median apophysis; MAP = mesal branch of MA; PA = patellar apophysis; S = spermatheca; SP = spur mesal branch of conductor; T = tegulum; TA 1 = tegular apophysis 1; TA 3 = tegular apophysis 3. Scale bars: A – B = 0.2 mm, C – D = 0.1 mm.

FIGURE 5. Onomastus corbetensis sp. nov. A. Left palp, ventral view. B. Same, retrolateral view. C. Epigyne, ventral view. D. Vulva, dorsal view. Abbreviations: AEB = anterior epigynal border; C = conductor; CY = cymbium; E = embolus; EG = embolic guide; FD = fertilization duct; MAP = mesal branch of MA; PA = patellar apophysis; PMA = prolateral branch of MA; RMA = retrolateral branch of MA; S = spermatheca; SP = spur mesal branch of conductor; T = tegulum; TA 1 = tegular apophysis 1; TA 3 = tegular apophysis 3. Scale bars: D = 0.1 mm, A – C = 0.2 mm.

FIGURE 8. Onomastus maskeliya sp. nov. A. Left palp, ventral view. B. Same, retrolateral view. C. Epigyne, ventral view. D. Vulva, dorsal view. Abbreviations: AEB = anterior epigynal border; AR. Atrial rim; AT = atrium; C = conductor; CY = cymbium; E = embolus; EG = embolic guide; FD = fertilization duct; MA = median apophysis; MAP = mesal branch of MA; PA = patellar apophysis; S = spermatheca; SP = spur mesal branch of conductor; T = tegulum; TA 1 = tegular apophysis 1; TA 3 = tegular apophysis 3. Scale bars: D = 0.1 mm, A – C = 0.2 mm.