Rothilena sudcaliforniensis, Maya-Morales, Julieta & Jiménez, María Luisa, 2013

Maya-Morales, Julieta & Jiménez, María Luisa, 2013, Rothilena (Araneae: Agelenidae), a new genus of funnel-web spiders endemic to the Baja California Peninsula, Mexico, Zootaxa 3718 (5), pp. 441-466 : 461-464

Rothilena sudcaliforniensis new species

Figures 58–63

Type. Female (Holotype): MEXICO: Baja California Sur, Municipality of La Paz, Biosphere Reserve Sierra La Laguna, Cañón La Burrera, 420 m, 1.I.1988, A. Cota (CARCIB 56), deposited at CARCIB.

Etymology. The specific name is related to the collection region of the species.

Diagnosis. Epigynum differs from all other species of Rothilena in having hoods as long as wide ( Figs. 58, 59 ) and the anterior part of atrium with a central depression ( Fig. 58, 60 ).

Description. Female (holotype): Coloration. Prosoma with two longitudinal symmetric dark bands on carapace, intensified by brown plumose hairs. Chelicerae and condyles reddish, endites and labium yellow with white tips. Opisthosoma with a brown spot at anterior dorsum, two longitudinal black bands and two lateral white bands, which are connected to form a broad foliage band to the anal tubercle. Habitus. Total length 6.25. Carapace length 2.88, width 1.88, cephalic region width 1, ocular region width 0.52. Eye rows strongly procurved. Eye diameter: AME 0.12, ALE, PME and PLE 0.13. Distance between eyes: AME-AME 0.06, AME-ALE 0.06, AME- PME 0.15, ALE-PLE 0.08, ALE-ALE 0.25, PME-PME 0.1, PME-PLE 0.08. Clypeus height 0.17. Chelicerae: basal segment length 1.63, fang length 0.55. Labium wider than long (0.58/0.27). Endites convergent (distance at their base compared with that at their tips 0.42/0.24). Sternum longer than wide (1.52/1.18). Opisthosoma longer than wide (4/2.38). Anterior lateral spinnerets separated by less their basal diameter (0.21/0.3), posterior lateral spinnerets with distal segment longer than basal segment (0.64/0.45). Legs. Relation prosoma/patella-tibia I: 2.88/ 2.71. Legs length: I—femur 2.14/ patella-tibia 2.71/ metatarsus 1.81/ tarsus 1.19; II—2.14/ 2.38/ 1.67/ 1.14; III— 2.1/ 2.48/ 2.05/ 1.19; IV—2.71/ 3.1/ 3.05/ 1.57. Spination. Femur dorsal I—1-2 -1-2/ II—1-2 -1-2/ III—1-2 -1-2/ IV—2-2 -2-2; patella dorsal I—1-2 -1/ II—1-2 -1/ III—1-2 -1/ IV—1-2 -1; tibia I—dorsal 0/ ventral 2-2-2/ prolateral 0-1-1/ retrolateral 0; II—0/ 2-2-2/ 0-1-1/ 0; III—1-1 -0/ 1-1-2/ 1-1-0/ 1-1-0; IV—1 -0-0/ 1-1-1-2/ 1-1-1-1/ 0-1-1-1; metatarsus I—0/ 2-2-2/ 0-1-1/ 0; II—0/ 2-2-2/ 0-1-2/ 0; III—0/ 2-3-2/ 0-1-2/ 0-1-2; IV—1-2 -2/ 2-2-1-1-2/ 1-1-2/ 1- 1-2. Number of trichobothria in tarsus: I—3, II—3, III—5, IV—2. Pedipalp. Number of dorsal spines: femur 2, patella 2, tibia 4. Epigynum ( Figs. 58–63 ). Hoods as long as wide, with a central depression in the anterior part of atrium. Copulatory ducts with anterior part separated by less of their width. Spurs exceed the epigastric furrow. Plate wider than long (0.85/0.61).

Male: Unknown.

Variation. Total body length varies between 6 and 7.13 (n = 4). Prosoma length varies between 2.88 and 3.38 (n = 4). Patella-tibia I length varies between 2.75 and 3.38 (n = 4). Bands and spots less conspicuous in paratypes. Additional material examined. Paratypes: MEXICO: Baja California Sur, Municipality of La Paz, same data of holotype, 1 ♀ (CARCIB 56); same locality of holotype, 1 ♀, 12.XII.1986, A. Acevedo (CARCIB 47); 4.83 km NW of San Antonio, 1 ♀, 13–18.XII.1977, C.E. Griswold and Vincent (CASENT 9048903). Habitat. The specimens were collected on the ground surface of a deciduous lowland forest dominated by Lysiloma divaricatum (mauto), Tecoma stans (trumpet bush, palo de arco), Senna atomaria (skunk cassia, palo zorrillo) and Albizia occidentalis (western albizia, palo escopeta) (Wiggins 1980, Rebman & Roberts 2012). Distribution. Biosphere Reserve Sierra La Laguna and San Antonio, Municipality of La Paz, Baja California Sur, Mexico ( Fig. 7 ).

Rothilena naranjensis new species Figures 64–69

Type. Female (Holotype): MEXICO: Baja California Sur, Municipality of Los Cabos, Los Naranjos, 600 m, 30.IX.1988, A. Cota (CARCIB 57), deposited at CARCIB.

Etymology. The specific name is a noun in apposition taken from the type locality.

Diagnosis. Epigynum differs from all other species by having the hoods covering only the posterior part of atrium ( Figs. 64, 65 ); copulatory ducts almost contiguous ( Figs. 66, 67 ).

Description. Female (holotype): Coloration. Prosoma with two longitudinal symmetric dark bands on carapace, intensified by brown plumose hairs. Chelicerae and condyles reddish, endites and labium yellow with white tips. Legs with three brown rings in femur, one in patella and two in tibia. Opisthosoma with an anterior dorsal brown spot two longitudinal black bands and two lateral white bands, which are connected to form a broad foliage band to the anal tubercle. Habitus. Total length 6. Carapace length 2.88, width 2, cephalic region width 1.1, ocular region width 0.57. Eye rows strongly procurved. Eye diameter: AME and PME 0.12, ALE and PLE 0.13. Distance between eyes: AME-AME 0.06, AME-ALE 0.04, AME-PME 0.1, ALE-PLE 0.04, ALE-ALE 0.27, PME- PME 0.08, PME-PLE 0.08. Clypeus height 0.13. Chelicerae: basal segment length 1.06, fang length 0.52. Labium wider than long (0.42/0.33). Endites slightly convergent (distance at their base compared with that at their tips 0.42/0.39). Sternum longer than wide (1.43/1.19). Opisthosoma longer than wide (3.1/1.86). Anterior lateral spinnerets separated by less their basal diameter (0.21/0.27), posterior lateral spinnerets with distal segment longer than basal segment (0.71/0.44). Legs. Relation prosoma/patella-tibia I: 2.88/2.9. Legs length: I—femur 2.29/ patella-tibia 2.9/ metatarsus 2.05/ tarsus 1.52; II—2.33/ 2.62/ 2/ 1.29; III—2.29/ 2.57/ 2.29/ 1.24; IV—2.81/ 3.52/ 3.24/ 1.52. Spination. Femur dorsal I—1-1 -2/ II—1-2 -1-2/ III—1-2 -1-2/ IV—1-1 -2; patella dorsal I—1-2 -1/ II—1- 2 -1/ III—1-2 -1/ IV—1-2 -1; tibia I—dorsal 1-0-0/ ventral 2-2-2/ prolateral 1-1-0/ retrolateral 0; II—1-1 -0/ 1-1-2/ 1- 1-0/ 0; III—1-1 -0/ 1-1-2/ 1-1-0/ 0-1-0; IV—1-1 -0/ 1-1-2/ 1-1-0/ 1-1-0; metatarsus I—0/ 2-2-1/ 1-0-1/ 0-0-1; II—0/ 2-2-1/ 1-0-1/ 0-0-1; III—2-1 -2/ 2-2-2/ 1-1-2/ 0-1-0; IV—1-1 -2/ 2-2-2/ 0-1-1/ 1-1-2. Number of trichobothria in tarsus: I—6, II—6, III—4, IV—1. Pedipalp. Number of dorsal spines: femur 2, patella 2, tibia 4. Epigynum ( Figs. 64–69 ). Hoods covering only the posterior part of atrium. Anterior part of copulatory ducts almost adjacent. Spermathecae separated by less of their diameter and adjacent to ventral margin in posterior view. Spurs located posteriorly exceeding the epigastric furrow. Plate wider than long (0.94/0.61).

Male: Unknown.

Variation. Total body length varies between 6 and 7.38 (n = 3). Prosoma length varies between 2.88 and 3 (n = 3). Patella-tibia I length varies between 3 and 3.13 (n = 3). Bands, spots and leg rings less conspicuous in paratypes.

Additional material examined. Paratypes: MEXICO: Baja California Sur, Municipality of Los Cabos, same data of holotype, 2 ♀ (CARCIB 57).

Habitat. The specimens were collected on the ground surface of a deciduous lowland forest dominated by Lysiloma divaricatum (mauto), Tecoma stans (trumpet bush, palo de arco), Senna atomaria (skunk cassia, palo zorrillo), and Albizia occidentalis (western albizia, palo escopeta) (Wiggins 1980, Rebman & Roberts 2012).

Distribution. Los Naranjos, Municipality of Los Cabos, Baja California Sur, Mexico ( Fig. 7 ).

Figures

FIGURE 7. Known distribution of Rothilena griswoldi sp. nov., Rothilena cochimi sp. nov., Rothilena pilar sp. nov., Rothilena golondrina sp. nov., Rothilena sudcaliforniensis sp. nov. and Rothilena naranjensis sp. nov.

FIGURES 58 – 63. Rothilena sudcaliforniensis sp. nov., female epigynum. 58, 59. Ventral view; 60, 61. Dorsal view; 62, 63. Posterior view. Abbreviations: A, atrium; CDa, anterior part of copulatory ducts; CDp, posterior part of copulatory ducts; FD, fertilization ducts; H, hoods; P, epigynum plate; S, spurs; SP, spermathecae. Scale bar = 0.25 mm.

FIGURES 64 – 69. Rothilena naranjensis sp. nov., female epigynum. 64, 65. Ventral view; 66, 67. Dorsal view; 68, 69. Posterior view. Abbreviations: A, atrium; CDa, anterior part of copulatory ducts; CDp, posterior part of copulatory ducts; FD, fertilization ducts; H, hoods; P, epigynum plate; S, spurs; SP, spermathecae. Scale bar = 0.25 mm.