Costarina azul, 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 : 9

Costarina azul , new species ( Figures 155–165 )

TYPES: Male holotype and male paratype taken by sifting leaf litter in a cloud forest at an elevation of 1500 m at a site 1 km north of Montaña Azul, Heredia, Costa Rica (May 7–8, 1987; D. Ubick), deposited in CAS (PBI_OON 51215) .

DIAGNOSIS: Males resemble those of C. cruz (cf. figs. 326–336) in having the distal embolar prong deeply bifid, producing a distinctive appearance, with three parallel, prolaterally directed flanges, but the teeth on the embolar base are much shorter and the middle flange has a much narrower base and a blunter tip (figs. 155–160); females also have fully fused ventral scuta but have a much larger genital atrium with the posterior margin expanded near the midline (figs. 162–165).

MALE (PBI_OON 51215, figs. 155–160): Total length 2.38. Endite ventral process wide, short; dorsal process narrow, short. Femora: I r1-1-0; II p0-0-2. Embolus distal prong deeply bifid, distal portion more heavily sclerotized; proximal prong long, narrow, sharply bent at half its length (N = 6).

FEMALE (PBI_OON 27674, figs. 161–165): Total length 2.38. Spination typical. Posterior margin of genital atrium medially expanded into wide, short triangle (N = 4).

DISTRIBUTION: Heredia.

Figures

FIGURES 155–165. Costarina azul, new species, male (155–160) and female (161–165). 155. Left palp, prolateral view. 156. Same, ventral view. 157. Same, retrolateral view. 158. Left embolus, prolateral view. 159. Same, ventral view. 160. Same, retrolateral view. 161. Sternum, ventral view. 162. Abdomen, lateral view. 163. Same, ventral view. 164. Digested female genitalia, ventral view. 165. Same, dorsal view.