The Goblin Spider Genus Costarina (Araneae, Oonopidae), Part 2: the Costa Rican fauna Platnick, Norman I. Berniker, Lily Víquez, Carlos American Museum Novitates 2014 2014-01-06 2014 3794 1 76 YWDQ Platnick & Berniker & Víquez, 2014 Platnick & Berniker & Víquez 2014 [399,569,751,777] Arachnida Oonopidae Costarina Animalia Araneae 12 13 Arthropoda species san sp. nov.   TYPES: Male holotype, female allotype, and two maleand two female paratypesfrom cloudforest litter taken at an elevation of  1800 mat km 117 on the Inter-American Highway, 19 kmnorth of San Isidro, 9°28′N, 83°42′20″W, San José, Costa Rica(  Feb. 15, 1998; R. Anderson), deposited in AMNH(PBI_OON 49240).  DIAGNOSIS: Males can be distinguished by the relatively large, rectangular proximal embolar prong and the wide, short, distally directed distal prong (figs. 268–273), females by the very small genital atrium and the rounded paramedian lobes on the posterior genitalic elements (figs. 277, 278).  MALE (PBI_OON 49240, figs. 268–273): Total length 2.04. Endite ventral process wide, heavily sclerotized distally; dorsal process narrow. Femur II p0-0-2, r0-1-0; metatarsus I v2-2-2. Embolus proximal prong rectangular, with sharp prolateral extension; distal prong with translucent flange ( N =3). FEMALE (PBI_OON 49240, figs. 274–278): Total length 2.35. Spination typical. Conspicuous dark markings present lateral to right and left sides of genital atrium, posterior elements with rounded paramedian lobes ( N =3).  DISTRIBUTION: San José. OON 49240 1998-02-15 AMNH R. Anderson Costa Rica 1800 9.466666 Inter-American Highway 925 -83.70555 12 13 2 1 1 holotype