Anyphaena stigma, Rivera-Quiroz & Álvarez-Padilla, 2023

Rivera-Quiroz, F. Andrés & Álvarez-Padilla, Fernando, 2023, Integration or minimalism: twenty-one new species of ghost spiders (Anyphaenidae: Anyphaena) from Mexico, European Journal of Taxonomy 865, pp. 1-94 : 80-82

Anyphaena stigma sp. nov.

urn:lsid:zoobank.org:act:E3896101-5F6D-4CD5-BF28-C484B68151E7

Figs 50–52

Differential diagnosis

Males of A. stigma sp. nov. are differentiated from all those of the pectorosa and pacifica groups by the presence of the following features: middle section of ventral tegular projection broad, retrolateral edge with a translucent edge, prolateral surface also distended; distal edge of median apophysis flat and curved, ventral edge with a transparent lamella ( Figs 50E–F , 51A–D ). RTA anterior branch spine-shaped with a blunt tip, longer than posterior branch, which is shaped as a curved lamella. Coxae II and III with a mid-ventral tubercle, coxa IV with two tubercles ( Figs 50E–F , 51A–F ). Ventral tegular projection with broad middle sections and translucent retrolateral edges are also present in A. zorynae ( Durán-Barrón et al. 2016: figs 5, 9), A. pacifica ( Dondale & Redner 1982: fig. 336), A. tonoi sp. nov. ( Fig. 46A ) and A. miniducta sp. nov. ( Fig. 32A ). Similar RTA are present in A. scopulata (Pickard-Cambridge F. 1900: pl. 7 fig. 17), A. simplex (Pickard-Cambridge O. 1896: pl. 7 fig. 11) and A. tonoi sp. nov. ( Fig. 47A, D ).

Etymology

The species epithet is derived from the Latin ‘ stigma ’ (‘mark’ or ‘brand’), in reference to the several dark spots on the scutum and epiandrous region.

Holotype MEXICO • ♂; Veracruz, Calcahualco, Xamaticpac , Plot I; 19.14172° N, 97.20597° W; alt. 1710 m; 4–17 Feb. 2014; Aracnolab team leg.; oak and tropical wet forest fragment, CRP; AR_022; GenBank: ON619667 ; CNAN-T01539 .

Paratype MEXICO • 1 ♂; same collection data as for holotype; AR_021; GenBank: ON619666 ; CNAN-T01574 .

Description

Male

Total length 6.5. Carapace yellow, darker over ocular quadrangle, around fovea and clypeus. Sternum surface white, intercoxal triangles present on all legs. Labium brown, white at tip, longer than wide. Endites yellow, rectangular, broader at tip ( Fig. 50A–C ). Chelicerae brown, paturon dorsal surface covered with black reticulated pattern ( Fig. 50D ), promargin with four teeth, retromargin with eight to nine denticles. Abdomen dorsal and lateral surfaces white, hirsute, covered with black marks, ventral surface pattern diffused. Tracheal spiracle at center of abdomen ( Fig. 50A, C ). Prolateral apophysis present. Tibia longer than wide. Ventral branch of median tibial apophysis present ( Figs 50E , 51A– D ). Cephalothorax length 2.98, thoracic width 2.29, cephalic width 1.06. Clypeus height 0.11. Eye diameters: AME 0.11, ALE 0.13, PME 0.15, PLE 0.15. Eye interdistances: AME–AME 0.05, AME– ALE 0.02, ALE–PLE 0.05, PME–PME 0.17, PME–PLE 0.09. Femur lengths: I 2.98, II 2.68, III 2.24, IV 2.93. Leg spination: femur I d1-1-1, p0-1-1, r0-1-1. Tibia I v2-2-0, p1-1-1, r1-1-1. Metatarsus I v2-2-0, p1-1-1, r1-1-1. Femur II d1-1-1, p0-1-1, r0-1-1. Tibia II v2-2-0, p1-1-1, r1-1-1. Metatarsus II v2-2-0, p1-1-1, r1-1-1. Femur III d1-1-1, p0-1-1, r0-1-1. Tibia III v2-2-2, p0-1-1, r0-1-1. Metatarsus III v2-2-2, p1-1-2, r1-1-2. Femur IV d1-1-1, p0-1-1, r0-1-1. Tibia IV v2-2-2, p0-1-1, r0-1-1. Metatarsus IV v2-2-2, p1-1-2, r1-1-2.

Female

Unknown.

Variation

Males (N= 2): total length 6.4 (±0.14), cephalothorax length 2.93 (± 0.07), thoracic width 2.29 (± 0.0), cephalic width 1.05 (±0.02), femur I 2.98 (± 0.0).

Distribution

This species is found in oak and tropical wet forest fragments around Pico de Orizaba Volcano National Park ( Fig. 52 ).

Natural history

Both specimens were collected by cryptic searching over leaf litter and tree bark.

Figures

Fig. 50. Anyphaena stigma sp. nov., paratype, ♂ (CNAN-T01574). A. Dorsal habitus. B. Lateral habitus. C. Ventral habitus. D. Prosoma, anterior view. E. Pedipalp, ventral view. F. Pedipalp, retrolateral view. Scale bars: A–C=1.0 mm; D =0.5 mm; E–F =0.2 mm.

Fig. 51. Anyphaena stigma sp. nov., paratype, ♂ (CNAN-T01574). A. Pedipalp, ventral view. B. Pedipalp, prolateral view. C. Pedipalp, dorsal view. D. Pedipalp, retrolateral view. E. Coxae, ventral view. F. Coxae, lateral view. Scale bars: A–D =0.2 mm; E–F= 1.0 mm.

Fig. 52. Localities for the species of Anyphaena. Black square=Atotonilco Plots I and II, separated by 400 m, nine species registered: A. bifurcata sp. nov., A. bromelicola Platnick, 1977 (ON619634- 38 Supp. file 1), A. catalina Platnick, 1974 (ON619673-75), A. dulceae sp. nov., A. epicardia sp. nov., A. fernandae sp. nov., A. porta sp. nov., A. salgueiroi sp. nov. and A. sofiae sp. nov. White square=Xamaticpac Plots I and II, plots contiguous, eleven species registered: A. adnani sp. nov., A. alachua Platnick, 1974 (ON619665), A. fraterna (Banks, 1896) (ON619671), A. megamedia sp. nov., A. miniducta sp. nov., A. natachae sp. nov., A. porta sp. nov., A. quadrata sp. nov., A. rebecae sp. nov., A. stigma sp. nov. and A. tonoi sp. nov. Black circle =Xilitla, four species registered: A. franciscoi sp. nov., A. ibarrai sp. nov., A. noctua sp. nov. and A. triangularis sp. nov. White circle =Los Tuxtlas, two species registered: A. jimenezi sp. nov. and A. urieli sp. nov.

Fig.46.Anyphaenatonoisp.nov.A–D. Paratype, ♂(CNAN-T01575).E–F.Paratype,♀(CNAN-T01576). A. Pedipalp, ventral view.B. Pedipalp, prolateral view.C. Pedipalp, dorsal view.D. Pedipalp, retrolateral view. E. Epigynum, ventral view. F. Epigynum, dorsal view. Scale bars: 0.2 mm.

Fig. 32. Anyphaena miniducta sp. nov. A–D. Allotype, ♂ (CNAN-T01515). E–F. Paratypes, ♀♀ (CNAN-T01560, CNAN-T01561). A. Pedipalp, ventral view. B. Pedipalp, prolateral view. C. Pedipalp, dorsal view. D. Pedipalp, retrolateral view. E. Epigynum, ventral view. F. Epigynum, dorsal view. Scale bars: 0.2 mm.

Fig. 47. Anyphaena tonoi sp. nov. A–F. Paratype, ♂ (CNAN-T01575). G–H. Paratype, ♀ (CNAN-T01576). A. Pedipalp, ventral view. B. Pedipalp, prolateral view. C. Pedipalp, dorsal view. D. Pedipalp, retrolateral view. E. Coxae, ventral view. F. Coxae, lateral view. G. Epigynum, ventral view. H. Epigynum, dorsal view. Scale bars: A–D, G–H =0.2 mm; E–F =1.0 mm.