Phonotimpus pozas, 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 : 36-38

Phonotimpus pozas sp. nov.

Figures 253–259 , 299 –306

Type material. Male holotype from Berlese sample taken in a tropical forest fragment at Las Pozas , [21.39722°N, 98.99389°W], elev. 600 m, Xilitla City, San Luis Potosí, Mexico (Nov. 14–18, 2011; Álvarez-Padilla Lab.), deposited in AMNH .

Other material examined. MEXICO: San Luis Potosí: Las Pozas, [21.39722°N, 98.99389°W], elev. 600 m, Xilitla City, Nov. 14–18, 2011, tropical forest fragment, Álvarez-Padilla Lab., 2♂, 1♀ ( AMNH) , same, Mar. 23–30, 2012, 1♂, 7♀ ( AMNH) , same, June 10–15, 2012, pitfall, 4♂ ( AMNH) . Tamazunchale , Jan. 5, 1952, W. Creighton, 1♀ ( AMNH) , same, [21.25°N, 98.8°W], Apr. 19, 1963, W. Gertsch, W. Ivie, 4♀ ( AMNH) , same, [21.25°N, 98.78333°W], Aug. 17, 1964, J., W. Ivie, 1♂ ( AMNH) . 8 mi NNW Tamazunchale , [21.33333°N, 98.83333°W], Apr. 19, 1963, W. Gertsch, W. Ivie, 2♂, 3♀ ( AMNH) . 7.2 km NE Xilitla , 21.42821°N, 98.94101°W, elev. 180 m, Aug. 19, 2009, sifted leaf litter, disturbed tropical moist forest, M. Branstetter, 1♀ ( MCZ 95377) , same 7♀ ( MCZ 94686) .

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

Diagnosis. Males can be easily recognized by the long, acuminate, arched embolus, subtriangular apical tegular apophysis, and dorsal tibial apophysis with a prolateral rounded bump at mid length ( Figs 253–255 ). Females are also readily recognizable by a median, longitudinal groove, which encompass the copulatory opening and the first part of copulatory ducts, extending up the anterior half of the epigynum, primary spermathecae long, curved, distal half touching posterior epigynal margin ( Figs 257–259 ).

Description. Male (holotype): Total length 1.47. Carapace light brown, entire surface with dark maculations, pars thoracica steeply sloping, pars cephalica gently sloping from thoracic groove to clypeus; sternum, mouthparts light brown, with dark maculations except on anteromedian corners of endites, each cheliceral paturon with one weak, erect bristle near base; abdomen almost rectangular, narrowed posteriorly, dorsum dark gray, with scattered tiny white spots, shiny, almost rectangular scutum covering over three-fourths of abdominal length, width, sides dark gray with longitudinal rows of white spots, venter pale yellow, unmarked ( Figs 299–302 ); legs yellow, unmarked. Leg spination: femora: I p0-0-2; II d1-0-0, p0-0-1; III–IV d1-0-0; tibiae: I v4-4-4; II v4-4-2; metatarsi I, II v3-2-2.

Palpal femur distally incrassate, with one dorso-distal spine, retrolateral excavation extending over distal two-thirds of femur length, patch of spinules on distal, prolateral half; dorsal tibial apophysis long, sharply bent at about one-third its length, with mid rounded bulge, tip attenuated, directed prolaterally ( Figs 253–256 ); straight retrolateral apophysis originating at base of tibia, with base extending far to side of segment, sharply bent at about half length, distally excavated ( Figs 254–255 ); cymbial groove deep, situated on proximal, prolateral part, corresponding with distal part of dorsal tibial apophysis ( Figs 253, 256 ); tegulum bulbous, expanded proximally; embolar base small, membranous; embolus with wide, triangular base, tip long, fang-shaped, extending over prolateral, distal edge of alveolus; long embolar basal process translucent; conductor long, slender, tip widened; apical tegular apophysis subtriangular ( Figs 253–254 ).

Female (Las Pozas): Total length 1.82. As in male, except each cheliceral paturon with two strong, erect bristles, abdominal dorsum with white spots forming five threadlike chevrons, scutum triangular, rounded posteriorly, occupying most of front margin but extending only about one-third of abdominal length, covering about one-third of abdominal width posteriorly ( Figs 303 –306). Leg spination as in male except tibiae: I v4-4-3; II v4-4-2.

Epigynum long, with a median groove, about two-thirds of epigynum length, encompassing the copulatory opening and first part of copulatory ducts; second part of copulatory ducts wide, sclerotized, laterally directed; bursae long, tube-shaped, anteriorly directed; elongated primary spermathecae about half as long as bursae, occupying posterior portion of epigynum, curved, distal half touching posterior epigynal margin, almost contiguous distally ( Figs 257–259 ).

Distribution. Known only from the Municipios Xilitla and Tamazunchale in southeastern San Luis Potosí ( Fig. 339 ).

Figures

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

FIGURES 253–262. 253–259. Phonotimpus pozas sp. nov., male (253–256) and female (257–259). 260–262. P. xilitla sp. nov., female. 253. Left palp, prolateral view. 254. Same, ventral view. 255. Same, retrolateral view. 256. Same, dorsal view. 257, 260. Epigynum, ventral view. 258, 261. Cleared epigynum, ventral view. 259, 262. Same, dorsal view.

FIGURES 287–305. 287–290. Phonotimpus valles sp. nov., female. 291–298. P. gertschi sp. nov., male (291–294) and female (295–298). 299–306. P. pozas sp. nov., male (299–302) and female (303–306). 287, 291, 295, 299, 303. Carapace, dorsal view. 289, 293, 297, 301, 305. Same, ventral view. 288, 292, 296, 300, 304. Abdomen, dorsal view. 290, 294, 298, 302, 306. Same, ventral view.