Costarina viejo, 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 : 8-9

Costarina viejo , new species ( Figures 133–143 )

TYPES: Male holotype and female allotype from the Estación Biológica La Selva, Heredia, Costa Rica (Mar. 13, 1987; D. Olson), deposited in MCZ (PBI_OON 37006) .

ETYMOLOGY: T he specific name is a noun in apposition taken from one of the localities (Puerto Viejo de Sarapiquí , Heredia) at which the species occurs.

DIAGNOSIS: Males resemble those of C. upala (cf. figs. 100–110) in having a relatively small, triangular distal embolar prong, but lack a prolaterally directed extension on that prong and have a very narrow proximal embolar prong (figs. 133–138); females resemble those of C. carrillo (cf. figs. 210–220) and C. cerere (cf. figs. 406–416) in having fully fused ventral scuta and a pair of dark sclerotizations at the sides of the genital atrium, but those sclerotizations are ledgelike rather than rounded (figs. 142–143).

MALE (PBI_OON 37006, figs. 133–138): Total length 2.01. Endite ventral process sharply pointed; dorsal process with arched tip. Femora: I r1-1-0; II p0-0-1, r0-1-0; tibiae: I v4-4-2; II v4-4-0; metatarsus I v2-2-2. Embolus distal prong arched, ventral portion translucent; proximal prong narrow, abruptly bent at half its length (N = 23).

FEMALE (PBI_OON 37006, figs. 139–143): Total length 2.22. Femur II p0-0-2, r1-1-0. Genital atrium with pair of dark sclerotizations at lateral margins, anterior genitalic process widened at about half its length (N = 18).

DISTRIBUTION: Abundant in Heredia and Limón.

Figures

FIGURES 133–143. Costarina viejo, new species, male (133–138) and female (139–143). 133. Left palp, prolateral view. 134. Same, ventral view. 135. Same, retrolateral view. 136. Left embolus, prolateral view. 137. Same, ventral view. 138. Same, retrolateral view. 139. Sternum, ventral view. 140. Abdomen, lateral view. 141. Same, ventral view. 142. Digested female genitalia, ventral view. 143. Same, dorsal view.