On Chilean Loxosceles (Araneae: Sicariidae): first description of the males of L. surca and L. coquimbo, new records of L. laeta and three remarkable new species from coastal deserts Author Brescovit, Antonio D. Author Taucare-Ríos, Andrés Author Magalhaes, Ivan L. F. Author Santos, Adalberto J. text European Journal of Taxonomy 2017 2017-12-27 388 1 20 journal article 31100 10.5852/ejt.2017.388 d5b314e8-8740-4134-b113-03bfa693b3c0 1133570 102DD58C-6F71-495B-8A60-4CFAC10B01B4 Loxosceles laeta ( Nicolet, 1849 ) Figs 1A , 9A , 10 Scytodes laeta Nicolet, 1849 : 349 ( female syntypes from Chile , supposedly deposited in MNHN , probably lost) . Loxosceles laeta Simon 1900 : 49. — Gertsch 1967 : 147–152, pl. 6, figs 1–9, pl. 7, figs 1–5, 8–9 (full synonymy list). — World Spider Catalog 2017. Diagnosis Loxosceles laeta could be confused in Chile only with the sympatric L. surca . It is easily distinguished from L. surca by the anterior border of the carapace not too hirsute, the male palp with tibia medially incrassate and four times longer than the cymbium ( Fig. 1A ). The female internal genitalia are very similar to those of L. surca , but can be recognized by the transverse enlargement at the base of the tubular receptacle, which is usually angled or produced into a distinct tubercle or short blind, finger-like projection (see Gertsch 1967 : pl. 6, figs 3–4, 6–9). Material examined CHILE . I Región de Tarapacá : Tamarugal , 1 ♀ , Huara , Pisagua , 19.6 S , 70.21667 W , 15 Nov. 1941 , J. Bird leg. ( AMNH ); Iquique , 2 ♀♀ , Iquique city , 20.21389 S , 70.1525 W , May 2002 , G. Arriagada leg. ( MNHNCL ); 1 ♂ , ditto, 15 May 2010 , A. Taucare-Ríos leg. ( IBSP 167070 ); 1 ♂ , 2 ♀♀ , ditto, 16 Jun. 2011 ( IBSP 167072 ); 1 ♂ , Altoda , Usmagama , 19.743056 S , 69.219722 W , 3400 m a.s.l., 9 Feb. 1993 , L.E. Peña leg. ( AMNH ) ; 2 ♀♀ , 1 immature (imm.), Punta Patache , 20.81067 S , 70.18725 W , 19 m a.s.l., 13 Jul. 2012 , A.D. Brescovit , A.J. Santos and A. Taucare-Ríos leg. ( IBSP 167064 ); 3 ♀♀, 20 imms, Pisagua, Punta Picholo, 19.6 S , 70.21667 W , Nov. 1941 , J . Bird leg. (AMNH); 2 ♂♂, 3 ♀♀, 10 imms, ditto, Nov. 1994 (AMNH); Tamarugal , 1 ♂ , Huara , Quebrada Tarapacá , 19.92333 S , 69.50883 W , 1416 m a.s.l., 11 Jul. 2012 , A.D. Brescovit , A.J. Santos and A. Taucare-Ríos leg. ( IBSP 167065 ) ; 1 ♂ , 5 ♀♀ , 15 imms, Pozo Almonte, La Tirana, La Huayca, 20.43567 S , 69.54533 W , 990 m a.s.l., 10 Jul. 2012 , A .D. Brescovit, A . J . Santos and A . Taucare-Ríos leg. (IBSP 167057); 1 ♂ , 3 ♀♀ , 9 imms, Pica , Canchones , Centro Experimental Canchones , near La Huayca , 20.445 S , 69.53383 W , 982 m a.s.l., 10 Jul. 2012 , A.D. Brescovit , A.J. Santos and A. Taucare-Ríos leg. ( IBSP 167062 ) ; 5 ♀♀, 9 imms, Tarapacá , Humberstone, 20.20581 S , 69.79406 W , 1983 , E . A . Maury leg. ( MACN 21477). – II Región de Antofagasta : Antofagasta 1 ♂ , 1 ♀ , María Elena , 21.91667 S , 69.8 W , 1938 ( AMNH ) ; 7 ♂♂ , 17 ♀♀ , 6 imms, Antofagasta , 23.65 S , 70.4 W , 1989 , J. Vidal leg. ( IBSP 4663 ) ; 1 ♀, 1 imm., La Chimba, 23.52132 S , 70.37787 W , 268 m a.s.l., 15 Jul. 2012 , A .D. Brescovit, A . J . Santos and A . Taucare-Ríos leg. (IBSP 167067); 1 ♂ , 2 ♀♀ , 4 imms, Vertedero Municipal , 23.533 S , 70.3833 W , 100 m a.s.l., 15 Jul. 2012 , A.D. Brescovit , A.J. Santos and A. Taucare-Ríos leg. ( IBSP 167060 ) ; 1 ♂, 8 imms, Mejillones, Mejillones, 23.105 S , 70.46267 W , 23 m a.s.l., in garbage, 14 Jul. 2012 , A .D. Brescovit, A . J . Santos and A . Taucare-Ríos leg. ( IBSP 167055); 2 ♂♂ , 3 ♀♀ , 4 imms, Taltal , 25.283333 S 69.766667 W , 24 Oct. 1985 , G. Arriagada leg. ( MHNS ) ; 3 ♀♀, 1 imm., Taltal, 5 km from Taltal, 25.34698 S , 70.44578 W , 24 m a.s.l., in a cave by the road, 17 Jul. 2012 , A .D. Brescovit, A . J . Santos and A . Taucare-Ríos leg. ( IBSP 167056); 6 ♀♀, Caleta Hueso, 25.39083 S , 70.47361 W , 28 Jan.4 Feb. 1941 , J . Bird leg. (AMNH); 1 ♀ , 1 imm., Paposo , 22.9 S , 69.31667 W , 2002 , O . León leg. ( MNHNCL ). – III Región de Atacama : Chañaral , 1 , 3 imms, Chañaral , 26.35577 S , 70.63795 W , 12 m a.s.l., 17 Jul. 2012 , A.D. Brescovit , A.J. Santos and A. Taucare-Ríos leg. ( IBSP 167058 ) ; Copiapó, 1 , 3 imms, Atacama , Copiapó , Caleta Pajonales , 27.73533 S , 70.98895 W , 141 m a.s.l., 10 Nov. 2013 , A.D. Brescovit et al. leg. ( IBSP 167079 ) ; 2 ♀♀ , Caldera , Calderilla , 27.0936 S , 70.85217 W , 25 m a.s.l., 10 Nov. 2013 , A.D. Brescovit et al. leg. ( IBSP 167087 ) ; 2 ♀♀, 4 imms, Puerto Viejo, 27.33708 S , 70.93197 W , 85 m a.s.l., 10 Nov. 2013 , A .D. Brescovit et al. leg. (IBSP 167083); Huasco, 1 ♂, 3 ♀♀, 2 imms, Atacama, Caleta Chañaral de Aceituno, 29.0788 S , 71.48782 W , 18 m a.s.l., 11 Nov. 2013 , A.D. Brescovit et al. leg. (IBSP 167075); 1 ♂, 3 imms, Carrizalillo, 29.10455 S, 71.40623 W, 124 m a.s.l., 11 Nov. 2013 , A.D. Brescovit et al. leg. (IBSP 167081); 1 ♂, 3 ♀♀, 5 imms, Vallenar, 27 km W of Vallenar, 28.56667 S, 70.75 W, 105 m a.s.l., 7 Jan. 1985 , N. Platnick and O. Francke leg. (AMNH); 2 ♀♀ imms, El Tránsito, 28.8769 S, 70.2805 W, 11001600 m a.s.l., 25– 27 Oct. 1980 , L.E. Peña leg. (AMNH); 1 ♀, 1 imm., Freirina, 28.5 S, 71.0667 W, 27– 28 Oct. 1980 , L.E. Peña leg. (AMNH). – IV Región de Coquimbo: Choapa, 1 ♀, Coquimbo Canela Baja, 31.40575 S, 71.46003 W, 7 Nov. 2013 , A.D. Brescovit et al. leg. (IBSP 167080); 1 ♀, Salamanca, La Jonquera, 31.76667 S, 70.96667 W, 19– 20 Jul. 1961 , D. Gonzalez leg. (AMNH); Coquimbo, 2 ♂♂, 3 ♀♀, 4 imms, Coquimbo, 29.95 S, 71.3334 W, Mar. 2002 , H. Niemeyer leg. (MNHNCL); Elqui, Coquimbo, 1 ♂, 2 ♀♀, 29.90778 S, 71.25417 W, no date, R. Wagenknecht leg. (MNRJ 58027); 1 ♂, 6 ♀♀, 3 imms, La Higuera, Caleta Hornos, 29.62733 S, 71.28072 W, 8 Nov. 2013 , A.D. Brescovit et al. leg. (IBSP 167082); 1 ♀, Chungungo, 29.4446 S, 71.30283 W, 34 m a.s.l., 11 Nov. 2013 , A.D. Brescovit et al. leg. (IBSP 167085); 1 ♂, Valle del Elqui, Los Choros, 29.23333 S, 71.45 W, 6–9 Sep. 2007 , J. Pizarro-Arraya et al. leg. (LEULS); 1 ♀, La Serena, Compania Baja, Llanos, 29.91667 S, 70.96667 W, 16 Jun. 2007 , A. Gonzales and Y. Laques leg. (LEULS); 1 ♀, ditto (LEULS); 1 ♀, 1 imm., La Serena, Colina El Pino , 29.9 S, 70.2432 W, 13Apr. 2010 , Grupo 1 Lab. leg. (LEULS); 1 ♀, ditto, 29.91135 S, 70.2432 W, 57 m a.s.l., 16 Aug. 2013 , M. Hurtado leg. (LEULS); 1 ♀, ditto, 29.9 S, 71.25 W, 6 Aug. 1961 , A.F. Archer leg. (AMNH); 1 ♀, La Serena, 29.9 S, 70.2432 W, 20 Jul. 2013 , P.A. Róten leg. (LEULS); 1 ♂, 1 ♀, 3 imms, Sector Parque Cori, 29.9 S, 71.23333 W, 12 May 2011 , P. Yera B. leg. (LEULS); 1 ♀, Valle del Elqui, La Marqueza, 29.94158 S, 70.95792 W, in a farm, 2008, J. Pizarro-Arraya et al. leg. (LEULS); 1 ♀, Vicuña, Diaguitas, 30.0166 S, 70.65 W, (LEULS); 2 ♀♀, ditto (LEULS); 3 ♀♀, 1 imm., ditto (LEULS); 2 ♂♂, 3 ♀♀, 4 imms, ditto (LEULS); 1 ♂, ditto, 1 Jan. 2006 (LEULS); 1 ♀, 3 imms, ditto (LEULS); 1 ♀, ditto, 13 Aug. 2004 (LEULS); 1 ♀, ditto, 18 Sep. 2006 (LEULS); 1 ♂, 1 ♀, ditto, Jan. 2008 (LEULS); 1 ♂, 1 ♀, ditto, 19 Sep. 2007 , L.S.C. and J.V. leg. (LEULS); Limarí, 3 ♀♀, 5 imms, Combarbalá, La Ligua Baja, 31.0251 S, 71.04028 W, 7 Sep. 2013 , A.D. Brescovit et al. leg. (IBSP 167076); 1 ♀, Ovalle, Camiño a Fray Jorge, 30.59622 S, 71.65365 W, 388 m a.s.l., 12 Nov. 2013 , A.D. Brescovit and I.L.F. Magalhaes leg. (IBSP 167084); 1 ♀, 2 imms, Ovalle, 30.58333 S, 71.2 W, 6 Aug. 2005 , P. Augusto leg. (LEULS); 1 ♀, 8 imms, ditto, 30.56783 S, 71.18175 W, 337 m a.s.l., 8 Nov. 2013 , A.D. Brescovit et al. leg. (IBSP 167074). – RM, Región Metropolitana de Santiago: Santiago , 1 ♀, Santiago, Cerro Blanco, 33.41963 S, 70.63333 W, Oct. 1961 , Franczinek leg. (AMNH); 1 ♀, El Canelo, Cajón del Maipo, 33.63333 S, 70.35 W, 850 m a.s.l., Nov. 1984 , L.E. Peña leg. (AMNH); 1 ♀, 6 imms, Parque Quinta Normal, 33.44071 S, 70.6826 W, in a house, May 1985 , O. León leg. (MNHNCL); 1 ♀, Quilicura, 33.36667 S, 70.75 W, May 1979 , L. Peña leg. (AMNH); 2 ♀♀, ditto, Oct. 1979 (AMNH); 1 ♂, Parque Quinta Normal, 33.44056 S, 70.6825 W, in house, behind a portrait, May 2002 , O. León leg. (MNHNCL); 2 ♀♀, 2 imms, ditto, 33.45 S, 70.7 W, 1984, O. León leg. (MNHNCL); 1 ♀, ditto, 1985 (MNHNCL); 1 ♀, 1 imm., ditto (MNHNCL); 2 ♀♀, Renca, 33.38333 S, 70.7 W, 3 Oct 1983 , Trarrazaval leg. (AMNH); 1 ♀, ditto, G. Mann leg. (AMNH); 2 ♀♀, ditto, 33.45 S, 70.66667 W, (AMNH); 2 ♀♀, 2 imms, ditto, 33.36667 S, 70.75 W (AMNH); 1 ♀, ditto, (AMNH); 1 ♂, ditto, Oct. 1953 , M. Toro G. leg. (AMNH); 4 ♂♂, ditto (AMNH); 3 ♀♀, ditto (AMNH); 3 ♀♀, ditto (AMNH); 3 ♂♂, 3 ♀♀, 1 imm., ditto, 33.45 S, 70.7 W, 1 Oct. 2009 , T.H. Kawamoto leg. (IBSP 161391). – V Región de Valparaíso: Marga Marga, 1 ♂, 1 imm., Olmué, Olmué, 32.99103 S, 71.17318 W, in a house, 31 Jan. 2013 , H. Wood and C. Griswold leg. (CAS 9053184; CAS 9053251); Valparaíso, 1 ♀, Melipilla, Casablanca, 33.3 S, 71.38333 W, Jan.–Mar. 1955 , E. Reed leg. (AMNH); 2 ♀♀, 1 imm., ditto, 33.31667 S, 71.41667 W, no date, G. Tobar leg. (MNRJ 632); 4 ♀♀, 2 imms, Quillota, Ocoa, Borda del Parque Nacional La Campana, 32.915 S, 71.09033 W, 355 m a.s.l., 23 Mar. 2013 , A.D. Brescovit et al. leg. (IBSP 163704); 1 ♂, 1 ♀, 3 imms, Valparaíso, 32.88333 S, 71.26667 W, Jan. 1979 , A. Tobar leg. (AMNH); 1 ♀, 1 imm., ditto, 33.06306 S, 71.63333 W, Feb. 1954 , E. Reed leg. (AMNH); 1 ♀, Quintero, Valparaíso, Las Dunas, 32.93806 S, 71.55639 W, 11–12 May 1962 , Donoso and Archer leg. (AMNH); 1 ♀, 1 imm., San Felipe, San Felipe, 32.706 S, 70.73733 W, 670 m a.s.l., 6 Apr. 2013 , A.D. Brescovit and I.L.F. Magalhães leg. (IBSP 163718); 1 ♀, Valparaíso, Cascabelles, 31.99045 S, 71.50905 W, 14 Nov. 2013 , A.D. Brescovit and I.L.F. Magalhaes leg. (IBSP 167088); 1 ♂, 1 ♀, Sector El Carretón, 32.11667 S, 71.26667 W, 26 Feb. 2006 , F. Perez leg. (LEULS); 1 ♀, Viña del Mar, 33.03333 S, 71.53333 W, Jan. 1979 , A. Tobar leg. (AMNH); 1 ♀, ditto, Feb. 1978 (AMNH); 1 ♂, 2 ♀♀, 3 imms, ditto, Feb. 1979 (AMNH); 4 ♀♀, 1 imm., ditto, Apr. 1979 (AMNH); 1 ♂, ditto, Jun. 1979 (AMNH); 1 ♂, 1 ♀, ditto, Aug. 1978 (AMNH); 1 ♂, 2 ♀♀, ditto, Oct. 1978 (AMNH); 1 ♂, 1 ♀, 1 imm., ditto, Dec. 1978 (AMNH); 1 ♀, ditto, 27 Jul. 1965 (IBSP 1946). – VII Región del Maule: Talca , 1 ♀, Talca , 35.43306 S, 71.66667 W, in a house, Sep.–Nov. 2003 , C. Muñoz leg. (CAS 9053262). – VIII Región del Bío-Bío: Concepción, 1 ♀, Concepción, Campus Universidad de Concepción, 36.8275 S, 73.03889 W, 7 Dec. 1998 , J. Artigas leg. (UCCC); 1 ♀, ditto, 36.83333 S, 73.05 W, 29 Dec. 1995 (UCCC); 1 ♀, ditto, 36.8275 S, 73.03333 W, 12 Jan. 1986 , M. Marchant leg. (UCCC); 1 ♀, 3 imms, ditto, 20 Sep. 2004 , J. Artigas leg. (UCCC); 1 ♀, ditto, 3 Oct. 2004 (UCCC); 1 ♀, ditto, 6 Oct. 2004 (UCCC); 1 ♀, ditto, 36.83333 S, 73.05 W, 18 Feb. 2003 (UCCC); 1 ♂, ditto, 25 Mar. 1985 , S. Cekalovic leg. (AMNH). – IX Región de la Araucanía: Cautín, 1 ♂, Temuco, Temuco, 38.75 S, 72.83333 W, no date, no collector (MNHNCL). – X Región de los Lagos: Osorno , 1 ♀, Osorno, Purranque, 40.91667 S, 73.16667 W, Jan.–Mar. 1955 , E. Reed leg. (AMNH). – XIV Región de los Ríos: Valdivia , 1 imm., Valdivia, Valdivia , 39.8 S, 73.23333 W, Apr. 1985 , C. Arraigada leg. (MNHNCL). – XV Región de Arica y Parinacota: Arica , 2 ♂♂, 1 ♀, San Miguel de Azapa, 18.51722 S, 70.19194 W, 27 Jan. 1973 (AMNH); 1 ♀, 1 imm., Lluta River Valley, 18.41139 S, 70.31972 W, GuicMann leg. (AMNH); 1 ♂, 2 ♀♀, Poconchile, 18.45083 S, 70.07017 W, 11 m a.s.l., 12 Jul. 2012 , A.D. Brescovit, A.J. Santos and A. Taucare- Ríos leg. (IBSP 167063); 1 ♂, 2 ♀♀, Valle de Azapa, 3 km S of San Miguel Azapa, 18.53417 S, 70.0 W, 24 Jan. 2014 , A. Taucare-Ríos leg. (IBSP 167069); 1 ♀, ditto (IBSP 167068); 1 imm., ditto, 18.51667 S, 70.18333 W, urban area, 27 May 1980 , N. Hidrino leg. (UCCC); 1 ♂, ditto, 28 Dec. 1988 , B. Roth leg. (CAS 9057745); 2 ♀♀, ditto, 18.475 S, 70.31444 W, 27 Feb. 1986 (UCCC); 2 imms, ditto, 18.51667 S, 70.18333 W, 1980, J. Artigas leg. (UCCC); 1 imm., ditto, 21 May 1980 , N. Hidrino leg. (UCCC); 1 imm., ditto, 26 Feb. 1980 (UCCC); 1 ♂, ditto (UCCC); 2 imms, ditto, 18.51722 S, 70.17611 W, 22 May 1980 , Nelson leg. (UCCC); 1 imm., ditto, in a house, 27 May 1980 , J. Artigas leg. (UCCC); 1 ♀, ditto, W, 1 Apr. 1980 , Nelson leg. (UCCC); 1 imm., ditto, in a house, 1 Apr. 1980 (UCCC); 1 imm., ditto, 27 Feb. 1980 , N. Hidrino leg. (UCCC); 1 ♀, Camarones, Taltape, Camarones Valley, 19.145 S, 70.17306 W, 29 Jan. 1973 (AMNH); Arica , 1 ♂, 2 ♀♀, Arica , 3 km S of San Miguel de Azapa, 18.53417 S, 70.0 W, 24 Jan. 2014 , A. Taucare-Ríos leg. (IBSP); 1 ♀, ditto, 24 Jan. 2015 (IBSP); 1 ♂, 1 ♀, 12 imms, Valle de Azapa, 18.475 S, 70.31444 W, 800 m a.s.l., 29–31 Jan. 1992 , L.E. Peña leg. (AMNH); Parinacota, 4 ♀♀, 1 imm., Putre, 100 km E of Zapahuira, 18.35333 S, 69.61833 W, 2003, A.A. Ojanguren Affilastro leg. (MACN 21408); 1 ♂, 1 ♀, Putre, Zapahuira, 18.26667 S, 69.0 W, 30 Oct. 2011 , A. Taucare-Ríos leg. (IBSP XXX); 1 ♂, 1 ♀, Ticnamar, 18.58167 S, 69.49444 W, 3200 m a.s.l., Mar. 1983 , H. Niemeyer leg. (MNHNCL); Tarapacá, 1 ♂, 2 ♀♀, Arica, Valle del Río Lluta, 18.41056 S, 70.11889 W, 2 Feb. 1992 , L.E. Peña leg. (AMNH). 1 ♀, no further data (MACN 21477); 1 ♀, ditto (MNRJ 14601); 4 ♀♀, ditto (IBSP 34949); 1 ♀, ditto (MNRJ 2304). Fig. 1. Male palps, prolateral. A . Loxosceles laeta (Nicolet, 1849) , ♂, Antofagasta, Antofagasta (IBSP 4663). B–D . Loxosceles surca Gertsch, 1967 . B . ♂, Chusmiza, Huara, Tamarugal, Tarapacá (AMNH). C . Same, bulb, prolateral. D . Same, palp, prolateral. Scale bars A–B = 1 mm. Description Male and female Described by Gertsch (1967) . Distribution Widespread in Chile , in all Regions fromArica y Parinacota to Los Lagos , except Regions VI ( O’Higgins ), XI ( Aisén ) and XII ( Magallanes ) ( Fig. 10 ). For records from other countries, see Gertsch (1967) .