Medionops Sanchez-Ruiz & Brescovit 2017
Creators: name: Martínez, Leonel
name: Sánchez-Ruiz, Alexander
name: Bonaldo, Alexandre B.
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Caponiidae
Medionops

description: Genus Medionops Sánchez-Ruiz & Brescovit, 2017
Updated key to the species of Medionops Sánchez-Ruiz & Brescovit, 2017
1. Abdomen dorsally with remarkable pattern of gray chevrons or stains (Figs 1A, C, 2A, C, 3A) .... 2
– Abdomen dorsally with unremarkable pattern of very fine gray chevron lines, almost unnoticeable (Sánchez-Ruiz & Brescovit 2017: figs 17a–b, 20a) ........................................................................ 10
2. Abdomen dorsally with five pairs of irregular dark gray stains forming two longitudinal bands (Sánchez-Ruiz & Brescovit 2017: figs 18a–b, 10a) .......................................................................... 3
– Abdomen dorsally with five whitish gray chevron stripes, which decrease in size towards the posterior part of abdomen (Figs 1A, C, 2A, C, 3A) ......................................................................... 4
3. Dorsal irregular dark gray stains on abdomen very close to each other, almost touching (Sánchez-Ruiz & Brescovit 2017: fig. 18a–b); crista very short; body more than 5 mm total length .................................................................................................... M. simla (Chickering, 1967)
– Dorsal irregular dark gray stains on abdomen widely separated from each other, not touching (Sánchez-Ruiz & Brescovit 2017: fig. 10a); crista absent (Sánchez-Ruiz & Brescovit 2017: fig. 9k); body less than 3 mm total length .............................. M. claudiae Sánchez-Ruiz & Brescovit, 2017
4. Gladius absent (Sánchez-Ruiz & Brescovit 2017: figs 11c–d, F, 13b–c) ........................................... ....................................................................................... M. murici Sánchez-Ruiz & Brescovit, 2017
– Gladius present (Dupérré 2014: fig.4; Sánchez-Ruiz & Brescovit 2017: figs 3g, 9k, 15e) .............. 5
5. Crista short but noticeable (Sánchez-Ruiz & Brescovit 2017: fig. 3g, j), reaching at least ¼ or 1 / of 5 metatarsal length ............................................................................................................................... 6
– Crista unnoticeable (Sánchez-Ruiz & Brescovit 2017: fig. 15e–f), only 1 / or less of metatarsal 6 length, or absent ................................................................................................................................ 7
6. Males embolus tip with several blade–shaped projections (Sánchez-Ruiz & Brescovit 2017: fig. 2j– l); female posterior plate with internally projected median septum (Sánchez-Ruiz & Brescovit 2017: fig. 4j–l) ......................................................................... M. blades Sánchez-Ruiz & Brescovit, 2017
– Males with smooth embolus tip, without projections (Sánchez-Ruiz & Brescovit 2017: fig. 7d–e); female posterior plate without internally projected median septum (Sánchez-Ruiz & Brescovit 2017: fig. 7g –i) .................................................................................................... M. cesari (Dupérré, 2014)
7. Abdomen dorsally with pattern of five large, wide whitish gray chevrons, which reach the lateral whitish gray spots (Figs 2A, C, 3A), ventrally with a pair of longitudinal stripes occupying only the posterior third of the abdomen (Figs 2B, D, 3B); males with bulb greater than patella length (Fig. 2E–F) ........................................................................................................................................ 8
– Abdomen dorsally with pattern of five small, narrow whitish gray chevrons, that never reach the lateral whitish gray spots (Figs 4A, C, 5A), ventrally without a pair of longitudinal stripes (Figs 4B, D, 5B); males with bulb equal to or smaller than the patella length (Fig. 4E–F) ............................. 9
8. Embolus slightly curved anteriorly, tip with accentuated curvature (Fig. 2E–F) ............................... ...................................................................................................... M. carolinae sp. nov. (only males)
– Embolus strongly angled at base and slightly sinuous (Figs 3C–D, 7C), tip almost straight (Fig. 3C– D) ....................................................................................................... M. cauca sp. nov. (only males)
9. Embolus more than 3 × the maximum tegular width, tip pointed (Fig. 4E–F) ................................... .................................................................................................... M. luiscarlosi sp. nov. (only males)
– Embolus less than 3 × the maximum tegular width, tip truncated (Fig. 5C–D) ................................. ..................................................................................................... M. santarosa sp. nov. (only males)
10. Crista short but noticeable, not reaching one fourth of metatarsal length; body more than 4.5 mm total length;males with embolus length more than3×the maximum diameter of the tegulum(Sánchez-Ruiz & Brescovit 2017: fig. 19g –h), known only from Venezuela M. tabay Sánchez-Ruiz & Brescovit, 2017
– Crista unnoticeable (Sánchez-Ruiz & Brescovit 2017: fig. 15d–f); body less than 3.5 mm total length; males with embolus length over less than 3 × the maximum diameter of the tegulum (Sánchez-Ruiz & Brescovit 2017: fig. 16a–b), known only from southeast coast of Brazil .......................................................................... M. ramirezi Sánchez-Ruiz & Brescovit, 2017
description: Published as part of Martínez, Leonel, Sánchez-Ruiz, Alexander & Bonaldo, Alexandre B., 2021, The spider genus Medionops Sánchez-Ruiz & Brescovit (Araneae: Caponiidae) in Colombia, with the description of four new species, pp. 61-79 in European Journal of Taxonomy 773 on pages 63-64, DOI: 10.5852/ejt.2021.773.1511, http://zenodo.org/record/5536387