Phonotimpus eutypus Gertsch & Davis, 1940

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 : 16-18

Phonotimpus eutypus Gertsch & Davis, 1940

Figures 113–117 , 142–148

Phonotimpus eutypus Gertsch & Davis, 1940: 21 , fig. 27 (female holotype from Linares , Nuevo León, Mexico, in AMNH; examined).

Material examined. MEXICO: Nuevo León: Cañón de las Anahuas, Linares , July 18–19, 1942, F. Bonet, D. Peláez, 2♂, 7♀ ( AMNH) . Linares , Apr.14, 1942, F. Bonet, 1♀ ( AMNH) ; 6 mi N Linares , July 3, 1936, L. Davis, 1♀ (holotype, AMNH) .

Diagnosis. Males differ from other species in this group by having the dorsal and retrolateral tibial apophyses subequal in length, the dorsal apophysis sinuous, distally attenuate ( Figs 144–145 ). Females have the copulatory ducts about as long as the chili-shaped primary spermathecae, which are slightly shorter than the bursae ( Figs 146–148 ). Carapace with a large dusky mark just anterior to fovea ( Figs 113, 115 ).

Description. Male (Cañón de las Anahuas): Total length 1.45. Carapace pale brown, with dusky markings everywhere except medially on pars cephalica, with a large dusky mark just anterior to fovea, pars thoracica steeply sloping, pars cephalica gently rounded; sternum, mouthparts yellow, with dusky markings, endites rounded, anteromedially pale, each cheliceral paturon with one erect bristle near base; abdomen narrow, dorsum dark gray, anteriorly with scattered white spots, posteriorly with threadlike white chevrons followed posteriorly by wide white spot immediately above spinnerets, weak, shiny scutum covering most of dorsum, sides light gray with longitudinal rows of white spots, venter yellow, without markings ( Figs 113–114 ); legs yellow, femora, tibiae, metatarsi each with proximal, distal dark rings, patellae with distal dark ring. Leg spination: femora: I d1-0-0, p0-0-2; II–IV d1-0-0; tibiae: I v4-4-4; II v4-2-2; metatarsi I, II v4-2-0.

Palpal femur club-shaped, with one distal, dorsal spine, retrolateral excavation shallow but extending over half of femur length, patch of spinules on distal, prolateral half; dorsal tibial apophysis sinuous, distally attenuate, tip curving toward cymbium; retrolateral apophysis thickened at base, arched, extending about as far anteriorly as does dorsal apophysis ( Figs 144–145 ); distal border of palpal tibia deeply notched prolaterally ( Figs 142– 143 ); very shallow groove on middle of cymbium, corresponding with dorsal tibial apophysis; tegulum bulbous, projecting ventrally; base of embolus wide, occupying about two-fifths of bulb width, one-third sclerotized, the rest membranous; embolus short, tubular, weak, situated in the margin of alveolus, largely obscured by cymbial setae; embolar basal process sinuate, tapered distally; conductor slender, tip rhomboid; apical tegular apophysis hookshaped pointing retrolaterally ( Figs 142–145 ).

Female (Cañón de las Anahuas): Total length 1.54. As in male except each cheliceral paturon with two erect bristles, dorsal abdominal scutum triangular, occupying most of front margin but extending only about half of abdominal length, covering only about one-third of abdominal width posteriorly ( Figs 115–117 ). Leg spination as in male except tibia II v4-4-1p; metatarsi I, II v4-2- 1p.

Epigynum wide, paramedian copulatory openings less than one diameter apart; copulatory ducts long, tubular, sclerotized, about same length as primary spermathecae; bursae large, wider than long, almost contiguous medially; primary spermathecae chilli-shaped, slightly shorter than bursae, situated lateral to copulatory ducts ( Figs 146– 148 ).

Distribution. Known only from the Municipio de Linares in central Nuevo León ( Fig. 339 ).

Figures

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

FIGURES 105–121. 105–108. Phonotimpus sanpedro sp. nov., female. 109–112. P. taman sp. nov., female. 113–117. P. eutypus Gertsch & Davis, 1940 male (113–114) and female (115–117). 118–121. P. arcitos sp. nov., male. 105, 109, 115, 118. Carapace, dorsal view. 107, 111, 117, 120. Same, ventral view. 106, 110, 116, 119. Abdomen, dorsal view. 108, 112, 121. Same, ventral view. 113. Habitus, dorsal view. 114. Same, ventral view.

FIGURES 142–148. Phonotimpus eutypus Gertsch & Davis, 1940 male (142–145) and female (146–148). 142. Left palp, prolateral view. 143. Same, ventral view. 144. Same, retrolateral view. 145. Same, dorsal view. 146. Epigynum, ventral view. 147. Cleared epigynum, ventral view. 148. Same, dorsal view.