The Goblin Spider Genus Costarina (Araneae, Oonopidae), Part 2: the Costa Rican fauna Author Platnick, Norman I. Author Berniker, Lily Author Víquez, Carlos text American Museum Novitates 2014 2014-01-06 2014 3794 1 76 http://www.bioone.org/doi/abs/10.1206/3794.1 journal article 10.1206/3794.1 0003-0082 5365505 Costarina obtina (Chickering) ( Figures 439–449 ) Dysderina obtina Chickering, 1968: 21 , figs. 42–45 (male holotype from Volcán , Chiriquí , Panama , in MCZ; examined). Costarina obtina: Platnick and Dupérré, 2011: 50 . DIAGNOSIS: Males of this dark-bodied species resemble those of C. espavel (cf. figs. 348– 358) in having a translucent flange on the distal embolar prong, but have a shorter proximal embolar prong (figs. 439–444); females have heavily sclerotized, arched posterior genitalic elements (figs. 448, 449). MALE (PBI_OON 29756, figs. 439–444): Total length 2.10. Endite ventral process relatively wide; distal process with arched, medially directed extension. Femora: I r0-1-1; II p0-0-1; tibia I v4-4-2; metatarsus I v2-2-2. Embolus proximal prong excavated on distal side; distal prong with translucent, relatively narrow proximal flange ( N = 13). FEMALE (PBI_OON 29756, figs. 445–449): Total length 2.12. Spination typical. Genital atrium almost rectangular, followed posteriorly by medially divided sclerotization ( N = 4). DISTRIBUTION: Southeastern Puntarenas .