Revisiting the spider genus Eutichurus Simon, 1897 (Araneae, Eutichuridae): new species and complementary descriptions Author Bonaldo, Alexandre B. Author Lise, Arno A. Author Ramírez, Martín J. Author Saturnino, Regiane text Zootaxa 2018 2018-02-21 4382 2 321 346 journal article 30692 10.11646/zootaxa.4382.2.6 17f8e584-b4c7-4586-9dbc-c682b3ffcd62 1175-5326 1182079 53C1FBC6-8A60-4C58-A8B9-47311BE186D1 Eutichurus madre Bonaldo, 1994 Figs 23 ̄26, Map 1 Eutichurus madre Bonaldo, 1994 : 129 , fig. 79. Female holotype from Peru , Madre de Dios , Zona Reservada Tambopata , Laguna Chica , 290 m , 12°50’S 69°17’W , 01.VI.1988 , D. Silva leg ( MUSM , not re-examined). Diagnosis. Males of E. madre resemble those of E. paredesi n. sp. and E. marquesae by the MA with a long, retrolaterally directed median prong ( Figs 1 , 27 ) but can be distinguished from the former by the presence of an embolar prolateral process and from the later by that process being inserted sub-apically ( Figs 23 , 24). Females share with those of E. marquesae the relatively small epigynal anterior projections, presenting a semi-circular sclerotized area at its inner margin, and posterior plates projected anteriorly over the median field ( Fig. 52 ; Bonaldo 1994 : fig. 80). They differ by the larger semi-circular sclerotized area on the anterior projections, which are projected over the posterior plates ( Bonaldo 1994: fig. 79 ). FIGURES 23¯26. Eutichurus madre Bonaldo, 1994 . Male: 23 palp, ventral view; 24 embolus, prolateral view; 25 palp, retrolateral view. Female: 26 epigynum, dorsal view. Scale bar = 0,25 mm. Description. Male (MPEG 21927). Colour in ethanol: carapace brownish red, cephalic region darker, thoracic groove mark reddish. Chelicerae, endites and labium brownish red. Sternum orange with brown margins. Legs yellow. Chelicerae with 4 promarginal teeth, the third the largest, the first a denticle; and 4 closely placed retromarginal teeth. Tarsi III–IV with dense scopulae, metatarsi III–IV with moderate scopulae. Total length 10.1. Carapace 5.0 long, 3.8 wide. Eye diameters: AME 0.28, ALE 0.27, PME 0.24, PLE 0.26. Eye interdistances: AME–AME 0.29, AME–ALE 0.31, PME–PME 0.40, PME–PLE 0.55, AME–PME 0.30, ALE–PLE 0.10, clypeus AME 0.17, clypeus ALE 0.17. Leg and palp measurements: palp 5.4 (2.0, 0.6, 1.2, -, 1.6); leg I missing; leg II missing; leg III 13.4 (3.7, 1.6, 3.0, 3.6, 1.5); leg IV 19.6 (4.8, 1.9, 3.9, 5.0, 1.7). Spination: palp femur: d 0-1-1; tibia p 2-0. Leg. I absent. II—absent. III—femur d 1-1-0, p 0-d1-d1, r 0-d1-d2; tibia d 0, p 2-1, r 1-1, v 2-2 -2; metatarsus d p1r1-p1r1-p1r1, p 0-0-1, r 0-0-1, v 2-2 -1. IV—femur d 1-1-0, p 0-d1-d1, r 0-0-d1; tibia d 0, p 1-1, r 1- 1, v 2-2 -2; metatarsus d p1r1-p1r1-p1r1, p 0-0-1, r 0-0-1, v 2-2 -1. Palp: tibia thin, long, almost the same length of cymbium; RTA excavated, projected retrolaterally. Tegular process absent; MA apically placed, median prong large; conductor hyaline. Embolus inserted sub-basally; embolus long, thin, base rounded, prolateral process hyaline, apices hook-shaped ( Figs 23 ̄25). Female . Described by Bonaldo (1994: 129) . Complementary description: vulva composed by large primary spermathecae with short fertilization ducts; secondary spermathecae inconspicuous (Fig. 26). Distribution . Southeastern Peru and Brazilian Amazonia (Map 1). New Records. PERU . Madre de Dios : Cuenca Rio Los Aruegos—CICRA, 1 female ( UNALM 787 ), 28.IX.2005 , M. Deza leg. ; 1 male (UNALM 793), 29.X.2005 ; Zona Reservada Pakitza , 11°56’S 71°17W, 356 m , 1 male (MUSM-Ent 504414), 11.V.1991 , D . Silva leg; Cusco , La Convención , Echarate , C.N. Monte Carmelo , 12°26’S 72°59’W , 1370 m , 1 male (MUSM-Ent 503623), 30.IX.2010 , J . Peralta leg. BRAZIL . Pará : Juruti [ 02°09’47.00”S 56°05’43.5”W ], 1 male ( MPEG 21927 ) ; Amazonas : Humaitá, Reserva Extrativista Humaitá [ 07°31’1.00”S 63°01’47.3”W ], 1 male ( IBSP 7161 ) .