Costarina osa, Platnick & Berniker & Víquez, 2014

Platnick, Norman I., Berniker, Lily & Víquez, Carlos, 2014, The Goblin Spider Genus Costarina (Araneae, Oonopidae), Part 2: the Costa Rican fauna, American Museum Novitates 2014 (3794), pp. 1-76 : 75

publication ID	https://doi.org/10.1206/3794.1
persistent identifier	https://treatment.plazi.org/id/03F387E9-FFC5-FFAA-FE13-FE6EFBDDFCCC
treatment provided by	Carolina (2021-08-29 14:59:52, last updated by GgImagineBatch 2021-08-29 15:08:19)
scientific name	Costarina osa
status	new species

Treatment

Costarina osa , new species ( Figures 549–559)

TYPE: Male holotype from lowland forest litter taken at an elevation of 250 m at Cerro Helado , 17 km northeast of Rincón, Península de Osa, 8°45′30″N, 83°25′00″W, Puntarenas, Costa Rica (June 21, 1997; R. Anderson), deposited in INBIO (PBI_ OON 29776 View Materials ) GoogleMaps .

DIAGNOSIS: Males resemble those of C. nara (cf. figs. 177–187), but have a broader, distally bent tip on the distal embolar prong (figs. 549–554); females have fully fused ventral scuta, a tiny genital atrium, and heavily sclerotized apodemes (figs. 556–559).

MALE (PBI_ OON 29776 View Materials , figs. 549–554): Total length 1.83. Both processes on endite elongated, dorsal process directed anteriorly. Femur I r0-1-0. Embolus proximal prong with retrolaterally directed knob at base; distal prong sharply bent distally (N = 1).

FEMALE (PBI_ OON 51307 View Materials , figs. 555–559): Total length 2.21. Spination typical. Genital atrium oval, filled with protruding sclerotization, anterior, posterior margins both rebordered (N = 4).

DISTRIBUTION: Southern Puntarenas (known only from the Osa Peninsula).