Ochyrocera, Simon

Valdez-Mondragón, Alejandro & Chamé-Vázquez, David, 2023, A new species of the spider genus Ochyrocera Simon (Araneae, Ochyroceratidae) from Mexico, with biogeographical comments and an updated identification key for Mexican species, Zootaxa 5374 (4), pp. 552-562 : 559

Key to males of Ochyrocera species from Mexico, updated from Valdez-Mondragón (2017):

1. Palpal bulb (tegulum) rounded, massive in comparison with the cymbium length ( Gertsch 1977: figs 80–81).................................................................................. Ochyrocera machadoi ( Gertsch, 1977)

- Palpal bulb otherwise.................................................................................. 2

2. Cymbial apophysis conical and relatively long ( Figs 7, 8 )..................................................... 3

- Cymbial apophysis short and stout ( Valdez-Mondragón 2009: figs 3, 4)..... Ochyrocera juquila Valdez-Mondragón 2009

3. Cymbial apophysis thickened medially (arrow in Valdez-Mondragón 2017: fig. 16)................................. 4

- Cymbial apophysis conical, not thickened medially ( Valdez-Mondragón 2017: figs 4–6)............................. 5

4. Embolus slender and long, about the same length of cymbium......... Ochyrocera simoni O.P. Pickard-Cambridge 1894

- Embolus wide and relatively short, markedly shorter than cymbial length ( Valdez-Mondragón 2017: fig. 15).............................................................................. Ochyrocera pojoj Valdez-Mondragón, 2017

5. Base of embolus with a brownish sclerotized region (arrows in Valdez-Mondragón 2017: figs 4, 6; Figs 8, 12 )............ 6

- Base of embolus without a brownish sclerotized region....................................................... 7

6. Sclerotized region surrounding the base of embolus (arrows in Valdez-Mondragón 2017: figs 4, 6); palpal femora relatively short, about two times longer than wide.............................. Ochyrocera jarocha Valdez-Mondragón, 2017

- Sclerotized region not surrounding the base of embolus, restricted to subdorsal part of the base of embolus ( Figs 8, 12 ); palpal femora relatively long, about three times longer than wide........................... Ochyrocera marialuisae sp. nov.

7. Embolus slender and long, D-shaped, directed toward the distal part of the tibia ( Valdez-Mondragón 2009: figs 13, 14)................................................................... Ochyrocera chiapas Valdez-Mondragón 2009

- Embolus stout and short, V-shaped, directed toward the central region of cymbial apophysis ( Brignoli 1974: fig. 6B)................................................................................. Ochyrocera fagei Brignoli 1974

Figures

FIGURES 7–12. Ochyrocera marialuisae sp. nov. Left male palp (holotype):7–8, Prolateral and retrolateral views, respectively. Cleared palp: 9, prolateral view. 10, Detail of tibia, cymbium, and copulatory bulb (showing detail of the embolus tip). 11–12, Retrolateral views. Black arrows in Figs 8, 12 indicate a small and sclerotized basal patch of the embolus. Scale bars: 7–8, 9, 11: 0.25 mm; 10, 12: 0.10 mm.