Two new ant-mimicking spiders (Araneae: Salticidae) from Costa Rica Author Pekár, Stano 0CC86F53-38D2-4265-9DA9-07023C1C728A Department of Botany and Zoology, Faculty of Science, Masaryk University, Kotlářská 2, 611 37 Brno, Czech Republic. pekar@sci.muni.cz text European Journal of Taxonomy 2022 2022-12-14 852 1 31 42 http://dx.doi.org/10.5852/ejt.2022.852.2005 journal article 209408 10.5852/ejt.2022.852.2005 b8503993-58c9-49b0-8068-524385d3fd70 2118-9773 7448120 E5A9CB6F-1A51-4554-ACA1-63762CBB4B59 Corcovetella galianoae sp. nov. urn:lsid:zoobank.org:act: 150EC988-F9A0-439D-987B-8D13D5C1A1A0 Figs 1F–G , 4A–E , 5A–F Diagnosis Males of C. galianoae sp. nov. can be distinguished from C. aemulatrix by enlarged chelicera and a triangular and bent RTA. Females can be distinguished by an atrium wider than long and spermathecae aside of the atrium. Etymology The name is a matronym in honour of Maria Galiano, who has advanced salticid taxonomy in South America. Type material Holotype COSTA RICA – Heredia Province • ♂ ; Puerto Viejo de Sarapiquí , La Selva Biological Station and Reserve ; 10°25.87145′ N , 84°0.45123′ W ; 16 Apr. 2015 ; G. Corcobado leg.; litter ; NMP ( P6A 7399 ). Paratypes COSTA RICA – Heredia Province • 1 ♀ ; same collection data as for holotype; 2 May 2015 ; NMP ( P6A 7400 ) • 1 ♂ , 1 ♀ ; same collection data as for holotype; MUB • 1 ♀ ; same collection data as for preceding; 2 May 2015 ; MUB . Other material examined COSTA RICA – Heredia Province • 2 juvs ; same collection data as for holotype; MUB • 1 juv. ; same collection data as for holotype; 7 May 2015 ; MUB . Fig. 4. Corcovetella galianoae sp. nov. A, C–F . Holotype, ♂ (P6A 7399 NMP). A . Prosoma, lateral view. B . Paratype, ♀ (P6A 7400 NMP), epigyne, ventral view. C . Left palp, retrolateral view. D . Left palp without plumose hairs, ventral view. E . Left palp, lateral view. Scale bars: A = 1 mm; B–E = 0.25 mm. Description Male MEASUREMENTS (N = 2). Total body 3.56 (4.6) mm long; carapace 1.60 (1.87) mm long, 0.92 (1.19) mm wide; cheliceral basal segment 0.68 (1.02) mm long, 0.35 mm wide; cheliceral fang 0.64 mm long; abdomen 1.50 (1.60) mm long, 0.89 mm wide. Diameter of eyes: AME = 0.28 mm , ALE = 0.11 mm , PME = 0.04 mm , PLE = 0.14 mm ; sternum 0.69 mm long, 0.35 mm wide. Leg segments: palp (0.35, 0.18, 0.35, 0.35), I (0.94, 0.45, 0.99, 0.64, 0.40), II (0.69, 0.39, 0.69, 0.49, 0.30), III (0.74, 0.30, 0.59, 0.69, 0.30), IV (1.14, 0.35, 0.94, 0.94, 0.35). COLOUR. Chelicerae brown covered with white setae ( Fig. 1F ), carapace brown with cephalic part dorsally black, white setae around eyes, endites and palps brown, labium and sternum dark-brown, most leg segments with longitudinal black stripes on sides, all Cx pale, all Fe mostly black, Pt and Ti I+II pale, other black, Mt I-III pale, Mt IV black, Ta I black, other Ta pale; abdomen brown to black, dorsally and laterally with a transverse wide white stripe in the middle ( Fig. 1F ). Fig. 5. Corcovetella galianoae sp. nov. A–D . Male. A . Chelicera, ventral view. B . Left palp, ventral view. C . Left palp, retrolateral view. D . Palpal tibia, lateral view. E–F . Female. E . Epigyne, dorsal view. F . Vulva. Scale bars = 0.25 mm. MORPHOLOGY. Basal segment of chelicera enlarged, protruding anteriorly with 3 teeth on prolateral margin, 1 tooth on retrolateral margin ( Fig. 5A ); fangs straight, distally bent; cephalic part of carapace dorsally flat, higher than thoracic part, without constriction ( Fig. 4A ). Leg spines: Ti I ventrally with 2.2.2, Mt I, II, III ventrally 2.2, Ti II ventrally with 2.1. Abdomen elipsoid, with a dorsal scutum, without constriction. Palpal Pt, Ti and Ta with dense plumose setae on the ventral side. RTA triangular with bent tip ( Figs 4E , 5D ), cymbium with elongated apophysis ( Figs 4C , 5C ), bulbus oval split in the middle, embolus coiled ( Figs 4D , 5B ). Female MEASUREMENTS (N = 2). Total body 4.86 (4.32) mm, carapace 1.84 (1.73) mm long, 1.12 (0.95) mm wide; cheliceral basal segment 0.48 (0.54) mm long, 0.35 mm wide, cheliceral fang 0.32 mm long; sternum 0.89 mm long, 0.45 mm wide, abdomen 2.24 (2.38) mm long, 1.21 mm wide. Diameter of eyes: AME = 0.35, ALE = 0.14, PME = 0.04, PLE = 0.14. Leg segments: palp (0.39, 0.35, 0.52, 0.60), I (0.89, 0.45, 0.74, 0.59, 0.39), II (missing), III (0.99, 0.45, 0.74, 0.79, 0.34), IV (0.94, 0.50, 1.24, 1.24, 0.44). COLOUR. As in male ( Fig. 1G ). MORPHOLOGY. As in male but chelicerae smaller, with 5 teeth on prolateral and 1 tooth on retrolateral margin. Palpal Ti and Ta bulbous with dense plumose setae on the ventral side. Epigyne with a single oval atrium, wider than long ( Figs 4B , 5E ); spermathecae composed of two chambers with ducts twisted in the middle and with fertilisation ducts in front ( Fig. 5F ). Natural history The species was collected from litter. Both sexes appear to resemble Camponotus planatus Roger, 1863 ants ( Fig. 1H ). Barcode COI of this species is deposited in GenBank, accession no. OM321372 . Distribution Known only from type locality in Costa Rica .