Revisiting the spider genus Eutichurus Simon, 1897 (Araneae, Eutichuridae): new species and complementary descriptions Bonaldo, Alexandre B. Lise, Arno A. Ramírez, Martín J. Saturnino, Regiane Zootaxa 2018 2018-02-21 4382 2 321 346 Bonaldo & Saturnino Bonaldo & Lise & Ramírez & Saturnino 2018 [151,673,1767,1793] Arachnida Miturgidae Eutichurus GBIF Animalia Araneae 14 335 Arthropoda species nancyae sp. nov.     Typematerial. Male holotype( MPEG 21914) from Brazil, Pará, Juruti, Várzea do Piranha, 02°12'36.1"S 56°07'20.7"W,  22.II.2011, N.  F. Lo Man Hungleg. Paratypes: female ( MPEG 21915), same locality,   4.VIII.2010, N. Abrahimleg.; male ( MPEG 21916), same locality,   25.II.2011, N.F. Lo Man Hungleg.; male ( MPEG 21917), Belém, Universidade Federal do Pará, Mata do Betina, 01°28'S 48°27'W,   12.IV.2007, D. F. Candianileg.; female ( MPEG 21918), same data; female ( MPEG 21919), same locality and collector,  10.IV.2007;  Ilha de Cotijuba, [01°13'60”S 48°33'3”W], female ( MPEG 4714),  XI.2004, D.  R. Santos-Souzaleg.; female ( MPEG 21920), Santarém, Alter do Chão, [ 02°30'19.00” S 54°57'8.00”W],  27.IV.2007, B.  J.F. Silvaleg.; male ( MCN25014), same locality,   26.I.1994, H. Höferleg.; male ( MPEG 21921), same locality, Fragmento São Luís, 2.VII.2007; male (MPEG 925), Melgaço, Estação Científica Ferreira Penna, Floresta Nacional de Caxiuanã, 01°44'18.02"S 51°27'48.01"W,   14.VII.2002, C. Pereiraleg.; female ( MZSP 10734), Barreirinhas[ 02°32'53.00” S 54°05'9.00”W], Rio Tapajós, 24.XI.1970, EPA leg.   Etymology.The specific name is a patronym in honour of arachnologist Nancy FrançaLo Man Hung, one of the collectors of the types.   Diagnosis.Males of  E. nancyae  n. sp.resemble those of  E. ravidusand  E. itamarajuby the wide, subrectangular embolus and by the simple MA without median prong ( Bonaldo 1994: figs 65, 70). They differ from both species by the simple, undivided RTA, with small ventral, proximal lamellae ( Figs 58, 60). Females share with those of  E. itamarajuthe epigynal anterior projections extremely reduced ( Bonaldo 1994: fig. 73) but are promptly recognized by the median field wider than long and by the posterior plates medially constricted (Fig. 61).   Description. Male( Holotype). Colour in ethanol: carapace pale yellow, thoracic groove mark darker. Chelicerae, endites and labium brownish red. Sternum yellow with brown margins. Legs and abdomen pale yellow. Chelicerae with 4 promarginal teeth, the third the largest, and 4 retromarginal teeth, contiguous. Tarsi I–IV and metatarsi III–IV with moderate scopulae. Total length 8.9. Carapace 4.0 long, 3.0 wide. Eye diameters: AME 0.25, ALE 0.25, PME 0.22, PLE 0.23. Eye interdistances: AME–AME 0.22, AME–ALE 0.23, PME–PME 0.35, PME– PLE 0.33, AME–PME 0.21, ALE–PLE 0.04, clypeus AME 0.08, clypeus ALE 0.12. Leg and palp measurements: palp 4.8 (1.7, 0.6, 1.0, -, 1.5); leg I 17.8 (4.7, 1.6, 4.7, 5.0, 1.8); leg II 17.5 (4.7, 1.5, 4.6, 5.0, 1.7); leg III 13.6 (3.9, 1.4, 3.2, 3.7, 1.4); leg IV 16.3 (4.5, 1.4, 3.9, 4.9, 1.6). Leg formula I-II-IV-III. Spination: palpal femur: d 0-1-1, p 0- 0-1; tibia p 2-1. Legs. I femur d 1-1-0, p 0-d1-d2, r 0-d1-d1; tibia d 0, p 1-1, r 0, v 2-p1-2-r1-p1-2 ( v 2p1-2r1-p12); metatarsus d 0, p 0, r 0, v 2-r1-2-p1-1 (2-r12-p1ap1). II femur d 1-0-0, p 0-d1-d1, r 0-d1-d1; tibia d 0, p 1-1, r 0, v 2-2-2; metatarsus d 0, p 0, r 0, v 2-2-1. III—femur d 1-0-0, p 0-d1-d1, r 0-d1-d2; tibia d 0, p 1-1, r 1-1, v p1-2-2; 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-d2-d1, r 0-d1-d2; tibia d 0, p 1-3, r 1-0, v 2-2-2-2-2; metatarsus d p1r1-p2-p1r1, p 0-0-1, r 0-0-1, v r1-2-2-2-r1-1 (r12-4r1-ap1). Palp: tibia slender, almost the same length of cymbium; RTA unbranched, relatively long and thin, with a basal, ventral lamellae. MA apically placed, without median prong; conductor hyaline; embolus inserted medially, wide, short, with large prolateral process and pars pendula ( Figs 58̄60).   FIGURES 48¯51.  Eutichurus marquesaeBonaldo, 1994. Male: 48 book lung cover, 49 abdominal setae; 50 epiandrum. Female: 51 book lung atrial mesh.  Female( Paratype, MPEG 21915). Colour in ethanol: dark yellow orange, thoracic groove mark orange. Chelicerae, endites and labium brownish red. Sternum orange with brown margins. Legs yellow, tibia and metatarsi orange. Abdomen pale yellow. Chelicerae with 5 promarginal teeth, the fourth the largest, and 4 retromarginal teeth, contiguous. Tarsi I–IV and metatarsi I–II with dense scopulae; metatarsi III–IV with moderate scopulae. Total length 14.0. Carapace 5.3 long, 4.0 wide. Eye diameters: AME 0.31, ALE 0.28, PME 0.25, PLE 0.30. Eye interdistances: AME–AME 0.39, AME–ALE 0.43, PME–PME 0.57, PME–PLE 0.56, AME–PME 0.36, ALE–PLE 0.13, clypeus AME 0.17, clypeus ALE 0.15. Leg and palp measurements: palp 5.6 (2.0, 0.7, 1.3, -, 1.6); leg I 18.4 (4.9, 2.0, 4.6, 5.1, 1.8); leg II 18.0 (4.9, 2.0, 4.5, 4.9, 1.7); leg III 14.2 (4.3, 1.7, 3.1, 3.7, 1.4); leg IV 17.8 (4.9, 1.7, 4.1, 5.3, 1.8). Leg formula I-II-IV-III. Spination: palp femur: d 0-1-1; tibia p 1-1, tarsus 1-1. Leg. I femur d 1-0-0, p 0-0-1, r 0; tibia d 0, p 0, r 0, v p1-2-0; metatarsus d 0, p 0, r 0, v 2-0-1. II—femur d 1-0-0, p 0-d1-d1, r 0; tibia d 0, p 0, r 0, v 0-p1-0; metatarsus d 0, p 0, r 0, v 2-p1-1. III—femur d 1-0-0, p 0-d1-d1, r 0-d1-d2; tibia d 0, p 1-1, r 1-1, v p1-p1-0; metatarsus d p1r1-r1-p1r1, p 0-0-1, r 0-0-1, v 2-2-1. IV—femur d 1-0-0, p 0-d1-d1, r 0-0-d2; tibia d 0, p 1-1, r 1-1, v p1-2-r1; metatarsus d p1r1-p1r1-p1r1, p 0-0-1, r 0-0-1, v 2-2-1. Epigynum: median field wider than long; anterior projections extremely reduced, inconspicuous; posterior plates separated medially, both anterior and posterior margins constricted medially; primary spermathecae inconspicuous, with large fertilization ducts; copulatory ducts wide, globose; secondary spermathecae small, globose (Figs 61, 62).   Distribution. Eastern Brazilian Amazonia (Map 1).     Othermaterial examined. BRAZIL. Pará: Juruti, várzea do Rio Amazonas, 02°24'20.7''S 56°26'00.3''W, 2 females( MPEG 21922; MPEG 21923),  18.IX.2002, A.B. Bonaldoleg.; 02°12'36.1"S 56°07'20.7"W, 1 male (MPEG 21924), 22.II.2011, N.F. Lo Man Hung leg.;  02°12'39.2" S 56°07'12.7" W, 1 male( MPEG 21925),  24.VIII.2011, N.C. Bastosleg.; Santarém, Alter do Chão[ 02°30'19.00” S 54°57'8.00”W], 1 female( MPEG 21926),  18.VI.2007, M.L.N. Sirotheauleg.   FIGURES 52¯57.  Eutichurus marquesaeBonaldo, 1994. Female: epigynum, 52 ventral view; 53 posterior view; 54 dorsal view; 55 dorso-lateral view; 56 dorso-anterior view; 57 cuticular glands. Abbreviatures: AP—anterior projection of lateral lobe; CD—copulatory duct; CG—cuticular gland; FD—fertilization duct; MF—median field; PP—posterior plate of lateral lobe; S1—primary spermathecae; S2—secondary spermathecae; SS2—stalk of S2.  MAP 1.Distribution records of species of  Eutichurus. 1820370001 2011-02-22 MPEG Brazil -2.210028 Varzea do Piranha 1 -56.122414 Juruti 14 335 MPEG 21914 2 Para holotype 1820369931 [481,1284,1910,1935] 2011-02-22 MPEG F. Lo Man Hung Brazil -2.210028 Varzea do Piranha 1 -56.122414 Juruti 14 335 MPEG 21915 1 Para paratype 1820369950 2010-08-04 MPEG N. Abrahim Brazil -2.210028 Varzea do Piranha 1 -56.122414 Juruti 14 335 MPEG 21916 1 Para paratype 1820369934 2011-02-25 MPEG N. F. Lo Man Hung Brazil -1.4666667 Mata do Betina 1308 -48.45 14 335 MPEG 21917 1 Para paratype 1820369935 2007-04-12 MPEG D. F. Candiani Brazil 15 336 -1.4666667 Mata do Betina 1308 -48.45 14 335 MPEG 21918 1 Para paratype 1820369929 [482,1224,151,176] 2007-04-10 MPEG D. F. Candiani Brazil -1.4666667 Mata do Betina 1308 -48.45 15 336 MPEG 21919 1 Para paratype 1820369951 2004-11 MPEG Brazil Ilha de Cotijuba -48.55083 15 336 MPEG 4714 1 Para paratype 1820369944 2007-04-27 MPEG R. Santos-Souza Brazil -2.5052779 Alter do Chao 1 -54.952225 Santarem 15 336 MPEG 21920 1 Para paratype 1820370009 2007-04-27 MCN J. F. Silva Brazil -2.5052779 Alter do Chao 1 -54.952225 Santarem 15 336 1 Para paratype 1820370012 [252,1223,260,285] 1994-01-26 MPEG H. Hofer & Fragmento Sao Luis Brazil -2.5052779 Alter do Chao 1 -54.952225 Santarem 15 336 MPEG 21921 1 Para paratype 1820370007 2002-07-14 MZSP C. Pereira & Barreirinhas Brazil -2.5480554 Rio Tapajos 1 -54.08583 15 336 MZSP 10734 1 Para paratype 1820370019 2002-09-18 MPEG A. B. Bonaldo Brazil -2.40575 Juruti 1 -56.43342 Other 19 340 MPEG 21922, MPEG 21923 2 2 Para 1820369900 2007-06-18 2011-08-24 2007-06-18 MPEG N. C. Bastos & M. L. N. Sirotheau Brazil -2.5052779 Alter do Chao 1 -54.952225 19 340 MPEG 21925, MPEG 21926 2 1 1 Para