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 males of Sri Lankan Onomastus

1. MA with pleated prolateral branch ( Figs 5 A, 6B; Benjamin 2010: fig. 27a.........................................2

- MA without pleated prolateral branch.....................................................................3

2. Prolateral branch of MA, hook-shaped ( Figs 5 A, 6B)....................................... O. corbetensis sp. nov.

- Prolateral branch of MA with rounded tip ( Benjamin 2010: fig. 27a).................................. O. rattotensis

3. Terminus of MA bifurcated ( Figs 2 A, 3A)..................................................................4

- Terminus of MA not bifurcated, globular with stout or pointed tip................................................5

4. Prolateral branch of MA terminus, smaller than the retrolateral branch ( Benjamin 2010: fig. 10a)............ O. nigricauda

- Prolateral and retrolateral branches of equal size ( Figs 2 A, 3A).............................. O. jamestaylori sp. nov.

5. Terminus of MA globular but without any prominent apical hump ( Fig. 8 A)...................... O. maskeliya sp. nov.

- Terminus of MA with apical hump........................................................................ 6

6. Terminus of MA with pointed tip ( Benjamin 2010: fig. 22a)...................................... O. quinquenotatus

- Terminus of MA with stout tip ( Benjamin 2010: fig. 23b).......................................... O. pethiyagodai

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.