The spider genus Medionops Sánchez-Ruiz & Brescovit (Araneae: Caponiidae) in Colombia, with the description of four new species Author Martínez, Leonel C3E9FDB9-4381-4ED3-AB0C-6C7F739CCCED Grupo de Investigación Biodiversidad del Caribe Colombiano, Semillero de Investigación Sistemática de Artrópodos Neotropicales, Departamento de Biología, Universidad del Atlántico, Barranquilla, Colombia. leonelmarbio@gmail.com Author Sánchez-Ruiz, Alexander D312037D-5F2B-4F86-A822-F0BAD1BEF20A Museu Paraense Emílio Goeldi, Coordenação de Zoologia, Laboratório de Aracnologia, Av. Perimetral, 1901, Terra Firme, CEP 66077 - 830, Belém, Pará, Brazil. alex.sanchezruiz@hotmail.com Author Bonaldo, Alexandre B. 118CFCBA-BD7E-4F15-8412-4979159298BA Museu Paraense Emílio Goeldi, Coordenação de Zoologia, Laboratório de Aracnologia, Av. Perimetral, 1901, Terra Firme, CEP 66077 - 830, Belém, Pará, Brazil. bonaldo@museu-goeldi.br text European Journal of Taxonomy 2021 2021-09-29 773 61 79 http://dx.doi.org/10.5852/ejt.2021.773.1511 journal article 4090 10.5852/ejt.2021.773.1511 38bb3ec2-51c6-4ffe-bf28-6f28266c2eaa 2118-9773 5536387 FD4A74C5-9746-4DB0-A252-82711FEB13E4 Medionops luiscarlosi sp. nov. urn:lsid:zoobank.org:act: 96AC990B-8993-478A-A4FD-2BEE997C0347 Figs 4 , 6 , 7D Diagnosis Males resemble those of M. santarosa sp. nov. in having a similar copulatory bulb shape, but can be distinguished by the embolus length more than 3 × the maximum tegular width, with pointed tip ( Figs 4E–F , 7D ) (shorter, with truncated tip in M. santarosa sp. nov. , Figs 5C–D , 7E ). Females are distinguished from those of all other species by the flat median concavity on the receptaculum ( Fig. 4H ). Etymology The specific name is a patronym in honor of Luis Carlos Gutierrez, an unforgettable professor from the Universidad del Atlántico in Colombia who passed away in 2021. Type material Holotype COLOMBIA • ♂ ; Caldas department , Pensilvania , Berlín ; 5°21′08″ N , 75°11′10″ W ; alt. 2750 m ; 24–26 Jul. 2004 ; E. González and L. Arango leg.; IAvH-I 3361 . Paratypes COLOMBIA • 1 ♂ ; Caldas department , Pensilvania , Finca La Cabaña ; 5°22′05″ N , 75°10′12″ W ; alt. 2650 m ; 30 Jul.–Aug. 2004 ; E. González , L. Arango and J. Montes leg.; IAvH-I 3352 • 1 ♀ ; same collection data as for preceding; IAvH-I 3772 . Description Male ( holotype , Figs 4A–B, E–F , 7D ) MEASUREMENTS. Total length 3.65. Carapace 1.60 long, 1.21 wide. Sternum 0.98 long, 0.81 wide. Legs: I: 3.68; II: 3.45; III: 2.89; IV: 3.84. COLORATION. Carapace, chelicerae, palps and legs orange ( Fig. 4A ); coxae and trochanters lighter ( Fig. 4B ). Endites, labium and sternum light orange ( Fig. 4B ). Abdomen dorsally with dorsal pattern of five small, thin, whitish gray chevron stripes, not extending laterally ( Fig. 4A ); ventrally yellowish gray ( Fig. 4B ). LEGS AND PALPS. Crista unnoticeable; gladius with common nopine shape. Palps with spherical tegulum with small projection on posterior side, embolus length more than 3 × the maximum width of tegulum, with pointed tip ( Figs 4E–F , 7D ), tip of embolus slightly curved and sharp, with small opening. Female ( paratype , Fig. 4C–D, G–H ) MEASUREMENTS. Total length 4.49. Carapace 1.92 long, 1.42 wide. Sternum 1.10 long, 0.85 wide. Legs: I: 4.13; II: 3.82; III: 3.31; IV: 4.53. COLORATION. As in male ( Fig. 4C–D ). LEGS AND PALPS. Crista and gladius as in male. External genitalia with white triangular area below genital opening ( Fig. 4G ), internal genitalia with flat median concavity on receptaculum ( Fig. 4H ). Fig. 4. Medionops luiscarlosi sp. nov. A–B, E–F . Holotype, ♂ (IAvH-I 3361). C–D, G–H . Paratype, ♀ (IAvH-I 3772). A . Habitus, dorsal view. B . Habitus, ventral view. C . Habitus, dorsal view. D . Habitus, ventral view. E . Left palp, retrolateral view. F . Left palp, prolateral view. G . External genitalia, ventral view. H . Internal genitalia, dorsal view. Scale bars: A–D = 1.5 mm; E–F = 0.7 mm; G = 0.5 mm; H = 0.2 mm.Abbreviations:p =anterior plate; b =area below genital opening; ess =external sclerotization around spiracles; go = genital opening; re = receptaculum; mc = median concavity. Variation Males (n = 2): total length: 3.35–3.65; carapace length: 1.60–1.72. Distribution Known from two localities in Caldas department , Colombia ( Fig. 6 ). Remark All type specimens were collected with pitfall traps.