Seven new species of Amphidraus Simon, 1900 (Araneae: Salticidae: Euophryini) Author Salgado, Alexandre Author Ruiz, Gustavo R. S. text Zootaxa 2019 2019-03-04 4563 3 451 481 journal article 28135 10.11646/zootaxa.4563.3.3 6c280343-607d-4ff5-b2ba-1ed24db90c36 1175-5326 2601342 86E75433-D91B-48E5-9807-9A0A460EFCB3 Amphidraus boomerang sp. nov. Figs 7–8 , 14 Type material. Holotype : Ƌ from Fazenda Nazareth , [ 4°45'03.4"S ; 42°35'14.2"W ], José de Freitas , Piauí , Brazil , 31.I.2004 , V.O. Costa leg. ( MPEG 9881 ). Etymology. The specific epithet is a noun in apposition and refers to embolic disc, boomerang-shaped ( Figs 7C , 8A ). Diagnosis. A. boomerang sp. nov. differs from all Amphidraus species by having the embolic disc boomerangshaped, due its expanded retrolateral border ( Figs 7C , 8A ). The retrolateral triangular lamella on the embolus shaft of A. boomerang sp. nov. is also present in A. argentinensis Galiano, 1997 , near the emergence point of the embolic filament (see Galiano 1997 : figs 9–10). A. boomerang sp. nov. can be distinguished from A. argentinensis by shape of the RvTA, large and with a ventral lobe in A. argentinensis ( Galiano 1997: fig. 11 ) and reduced in A. boomerang sp. nov. ( Fig. 8B ). FIGURE 3. Left bulb of male palps, ventral view (A Amphidraus cornipalpis sp. nov. , B A. loxodontillus ). Abbreviations: dPED, distal process on embolic disc; e, embolus shaft; ed, embolic disc; ef, embolic filament; TL, tegular lobe. White arrows show the poorly-sclerotized process on embolic disc. FIGURE 4. Amphidraus cornipalpis sp. nov. A–B female (A dorsal, B ventral); C epigyne/vulva, cleared, ventral. Abbreviations: cd, copulatory duct; co, copulatory opening; fd, fertilization duct; S, spermatheca. FIGURE 5. Amphidraus cornipalpis sp. nov. A–E left male palp (A ventral; B retrolateral; C prolateral; D cleared bulb, ventral; E dorsal); F epigyne/vulva, cleared, ventral. Abbreviations: cd, copulatory duct; co, copulatory opening; Cy, cymbium; dPED, distal process on embolic disc; e, embolus shaft; ed, embolic disc; ef, embolic filament; fd, fertilization duct; ITA, intercalary tibial apophysis; RTA, retrolateral tibial apophysis; RvTA, retroventral tibial apophysis; S, spermatheca; T, tegulum; TL, tegular lobe. Large black arrows in A, B, E show cymbial tubercle, and small black arrows in F show sperm path from copulatory opening to spermatheca. Description. Male holotype (MPEG 9881). Total length: 3.08. Carapace 1.62 long, 1.07 wide and 0.85 high. Ocular quadrangle 0.83 long. Anterior eye row 1.17 wide, posterior 0.98 wide. Legs 4312. Length of leg: I 2.65 (0.82 + 1.01 + 0.82); II 2.49 (0.80 + 0.91 + 0.78); III 3.15 (0.99 + 1.05 + 1.11); IV 3.47 (1.02 + 1.21 + 1.24). Palp ( Figs 7 C–F, 8A–D): femur and patella with no modifications; short RvTA with two apical teeth ( Figs 7D , 8B ); straight RTA with the same length of tibia and with membranous external border ( Figs 7D, 7F , 8B, 8D ); cymbium oval, with proximal dorso-prolateral portion prominent ( Figs 7F , 8D ); tegulum with thick and straight lobe ( Figs 7C , 8A ); embolic disc with a process with acute tip (dPED) placed on the median distal portion and projected to prolateral side, with a ventral process (vPED) ventrally projected and with a proximal process (pPED) projected to proximal side, hidden under the tegulum ( Figs 7 C–E, 8A, 8C); embolus shaft (e) with tip curved to retrolateral side and with two processes: a triangular lamella placed at the middle of retrolateral border and a rounded basal process ( Figs 7C , 8A ); embolic filament (ef) approximately 1/2 the length of embolus shaft ( Figs 7C , 8A ). Color in alcohol ( Figs 7 A–B): cephalic area black; thoracic area brown with light brown longitudinal stripe; abdomen dorsally variegated with light brown and with longitudinal stripe of white setae; ventrally pale; pale legs. Female. Unknown. Distribution. Known only from the type locality (state of Piauí ) ( Fig. 14 ).