Phonotimpus frio, 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 : 28

Phonotimpus frio sp. nov.

Figures 186–188 , 226–229

Type material. Female holotype from the Cueva del Nacimiento del Río Frío [22.9904748°N, 99.1508810°W], 7 km S Gómez Farías, Tamaulipas, Mexico (Feb. 18, 1973; D. McConnell), deposited in AMNH .

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

Diagnosis. Females can easily be recognized in having a tongue-shaped median septum, shallow atria, posterior epigynal margin notched at midline, bursae longer than primary spermathecae, which are elongated, expanded at mid length, distant from the posterior epigynal margin ( Figs 186–188 ).

Description. Male: Unknown.

Female (holotype): Total length 1.94. Carapace yellow, with dark lateral margins, two paramedian bands of dark, radiating maculations, pars thoracica gently sloping, pars cephalica flat; sternum, mouthparts yellow, unmarked, each cheliceral paturon apparently with only one strong, erect bristle laterally near base; abdomen widened posteriorly, dorsum, sides light gray, anteriorly with numerous oblique rows of tiny white spots, posteriorly with two thin white chevrons followed posteriorly by larger white chevron above spinnerets, scutum tongue-shaped, restricted to cardiac area, venter white, unmarked ( Figs 226–229 ); legs yellow, unmarked. Leg spination: femora: I p0-0-2; II p0-0-1; tibiae: I v4-4-4; II v4-4-2; metatarsi I, II v2-2-3.

Epigynum large, posterior margin with a median notch, posterior half of epigynum with a shallow atrium divided by a tongue-shaped median septum, narrowed anteriorly between copulatory openings, which are small, closely spaced, situated on the anteromedian atrial margin; copulatory ducts short, slender; bursae subtriangular, about twice as long as wide, longer than primary spermathecae, which are elongated, expanded at mid length, situated posterolateral to copulatory ducts, shorter than bursae, distant from the posterior epigynal margin ( Figs 186–188 ).

Distribution. Known only from a cave in the Municipio de Gómez Farías, Tamaulipas ( Fig. 339 ).

Figures

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

FIGURES 186–191. 186–188. Phonotimpus frio sp. nov., female. 189–191. P. revilla sp. nov., female. 186, 189. Epigynum, ventral view. 187, 190. Cleared epigynum, ventral view. 188, 191. Same, dorsal view.

FIGURES 226–245. 226–229. Phonotimpus frio sp. nov., female. 230–233. P. revilla sp. nov., female. 234–241. P. tetrico sp. nov., male (234–237) and female (238–241). 242–245. P. vacas sp. nov., male. 226, 230, 234, 238, 242. Carapace, dorsal view. 228, 232, 236, 240, 244. Same, ventral view. 227, 231, 235, 239, 243. Abdomen, dorsal view. 229, 233, 237, 241, 245. Same, ventral view.