Phonotimpus farias, Platnick & Chamé-Vázquez & Ibarra-Núñez, 2022

Platnick, Norman I., Chamé-Vázquez, David & Ibarra-Núñez, Guillermo, 2022, The guardstone spiders of the genus Phonotimpus Gertsch & Davis (Araneae: Phrurolithidae) from northeastern Mexico, Zootaxa 5219 (1), pp. 1-48 : 10-11

Phonotimpus farias sp. nov.

Figures 45–51 , 89–96

Type material. Male holotype from Rancho del Cielo, 6 mi NW Gómez Farías, Tamaulipas, Mexico (Mar. 9, 1969; J. Reddell et al.), deposited in AMNH .

Other material examined. MEXICO: Tamaulipas: Gómez Farías and vicinity, elev. 400–600 m, July 20–24, year unknown, collector unknown, 1♂, 2♀ ( AMNH) . Julilo , 23.14122°N, 99.21315°W, elev. 1450 m, July 19, 2006, liquidambar/oak forest litter, R . Anderson, L. Benavides, 2♀ ( MCZ 140486 ) .

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

Diagnosis. This species seems close to P. cumbres sp. nov. and P. perra sp. nov., but males have the distal half of retrolateral tibial apophysis shorter, dorsal margin straight, the ventral one sinuous in retrolateral view ( Fig. 47 ); females have more separated copulatory openings, and elongated spermathecae, transversely oriented ( Figs 49–51 ).

Description. Male (holotype): Total length 1.60. Carapace olive, entire surface covered with dark maculations that are lighter submarginally, medially, pars thoracica gently sloping, pars cephalica flattened; sternum, mouthparts olive, each cheliceral paturon with two strong, erect bristles near base; abdomen narrow, dorsum, sides dark gray, dorsum with faint traces of four threadlike white chevrons just above spinnerets, scutum covering almost entire dorsum, sides with longitudinal rows of white spots, venter light gray, with scattered white spots ( Figs 89–92 ); legs yellow, with all femora darkened, patellae, tibiae with distal dark rings. Leg spination: femora: I d1-0-0, p0-0-2; II d1-0-0, p0-0-1; III–IV d1-0-0; tibiae: I v4-4-3; II v4-4-0; metatarsi I, II v4-2- 1p.

Palpal femur distally incrassate, with retrolateral excavation extending over distal half of femur length, patch of spinules on distal, prolateral half; dorsal tibial apophysis long, straight, attenuate ( Fig. 48 ); retrolateral apophysis much stronger, shorter, wide at base, abruptly narrowed at half its length, distal half with dorsal margin straight and the ventral sinuous, as seen retrolaterally ( Fig. 47 ); tegulum slightly expanded proximally, about one fourth of embolar base sclerotized, the rest membranous; embolus short, tubular, translucent, pointing diagonally to retrolateral side, obscured by embolar basal process, which is sigmoidal, slender distally, ending at embolus tip; conductor short, widened at tip; apical tegular apophysis pointing distally, partially obscured by conductor ( Fig. 46 ).

Female (Julilo): Total length 2.02. As in male, except carapace with light median band extending from posterior half of pars cephalica to posterior margin, abdominal scutum small, triangular, restricted to anterior portion of cardiac area, dorsum with seven white chevrons, anterior two chevrons much larger than others ( Figs 93–96 ), distal dark rings more pronounced on posterior patellae, tibiae. Leg spination as in male except tibiae: I v4-4-4; II v4-4- 1p; metatarsi: I v4-2-2.

Epigynum large, posterior half with two small, shallow atria (often occluded with dark secretions), separated by about two diameters; copulatory openings small, situated at lateral edge of atrial ridges; copulatory ducts short; bursae larger than spermathecae, subtriangular, contiguous; oblong primary spermathecae situated posteriorly, transversely oriented; secondary spermathecae tiny, fingerlike, arising at the union of copulatory duct and primary spermatheca; fertilization duct arising at first third of spermatheca length ( Figs 49–51 ).

Distribution. Known only from the Municipio de Gómez Farías in southern Tamaulipas, where it is sometimes sympatric with P. cima sp. nov. and P. cielo sp. nov. ( Fig. 339 ).

Figures

FIGURE 339. Northeast Mexico, showing distribution of the Phonotimpus species described in this work.

FIGURES 45–54. 45–51. Phonotimpus farias sp. nov., male (45–48) and female (49–51). 52–54. P. perra sp. nov., female. 45. Left palp, prolateral view. 46. Same, ventral view. 47. Same, retrolateral view. 48. Same, dorsal view. 49, 52. Epigynum, ventral view. 50, 53. Cleared epigynum, ventral view. 51, 54. Same, dorsal view.

FIGURES 85–104. 85–88. Phonotimpus cumbres sp. nov., female. 89–96. P. farias sp. nov., male (89–92) and female (93–96). 97–100. P. perra sp. nov., female. 101–104. P. sanpedro sp. nov., male. 85, 89, 93, 97, 101. Carapace, dorsal view. 87, 91, 95, 99, 103. Same, ventral view. 86, 90, 94, 98, 102. Abdomen, dorsal view. 88, 92, 96, 100, 104. Same, ventral view.