Anyphaena megamedia Rivera-Quiroz & Álvarez-Padilla 2023, sp. nov.
Creators: name: Rivera-Quiroz, F. Andrés
name: Álvarez-Padilla, Fernando
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Anyphaenidae
Anyphaena
Anyphaena megamedia

description: Anyphaena megamedia sp. nov.
urn:lsid:zoobank.org:act: F1F5319C-F100-4D69-9370-E1A5BF56E6C0
Figs 48–49, 52
Differential diagnosis
Males of A. megamedia sp. nov. are differentiated from all those of the pectorosa and pacifica groups by the enormous size of the median apophysis, larger than the ventral tegular projection, and trapezoidal in shape (Figs 48E–F, 49A, D).
Etymology
The species epithet refers to the large size of the median apophysis characteristic of these species.
Material examined
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; BEAT; AR_024; GenBank: ON619661; CNAN-T01530.
Paratypes MEXICO • 1 ♂; same collection data as for holotype; LUP; CNAN-T01558 • 1 ♂; Xamaticpac, Plot II; 19.12614° N, 97.06708° W; alt. 1700 m; 2–11 Oct. 2013; AR_018; GenBank: ON619672; CNAN-T01559.
Additional material
MEXICO • 1 ♂; Veracruz, Calcahualco, Xamaticpac, Plot I; 19.14172° N, 97.20597° W; alt. 1710 m; 2–11 Oct. 2013; Aracnolab team leg.; oak and tropical wet forest fragment; BEAT; AR_025; GenBank: ON619662 • 1 ♂; same collection data as for preceding; AR_026; GenBank: ON619663.
Description
Male
Total length 6.6. Carapace yellow, darker over ocular quadrangle, around fovea and clypeus. Sternum surface yellow, intercoxal triangles present on all legs. Labium brown, white at tip, longer than wide. Endites yellow, rectangular, broader at tip (Fig. 48A–C). Chelicerae dark yellow without dorsal pattern (Fig. 48B, D), promargin with four teeth, retromargin with eight to nine denticles. Abdomen surfaces white, hirsute, covered with darker spots except posterior to tracheal spiracle located at middle (Fig. 48A, C). Ventral tegular projection long, curved retro-ventrally, retrolateral edge with small transparent edge, prolateral base enlarged. Embolus filiform (Fig. 49A–B). RTA anterior branch largest, spine-shaped, RTA posterior branch small and squared. Prolateral apophysis present. Tibia longer than wide. Ventral branch of median tibial apophysis present (Figs 48E–F, 49A–D). Cephalothorax length 2.93, thoracic width 2.24, cephalic width 1.06. Clypeus height 0.12. Eye diameters: AME 0.09, ALE 0.11, PME 0.12, PLE 0.12. Eye interdistances: AME–AME 0.05, AME–ALE 0.04, ALE–PLE 0.12, PME–PME 0.17, PME–PLE 0.11. Femur lengths: I 3.16, II 2.68, III 2.24, IV 3.02. Leg spination: femur I d1-1-1, p0-0-1, r0-0-1. 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, p0-0-1, r0-0- 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, p0-0-1, r0-0-1. 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, p0-0-1, r0-0-1. 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=5): total length 6.12 (± 0.49), cephalothorax length 2.79 (± 0.14), thoracic width 2.18 (± 0.06), cephalic width 1.05 (± 0.06), femur I 3.44 (± 0.14).
Distribution
This species is found in oak and tropical wet forest fragments around Pico de Orizaba Volcano National Park (Fig. 52).
Natural history
Most specimens were collected over vegetation by direct searching or with a beating tray.
description: Published as part of Rivera-Quiroz, F. Andrés & Álvarez-Padilla, Fernando, 2023, Integration or minimalism: twenty-one new species of ghost spiders (Anyphaenidae: Anyphaena) from Mexico, pp. 1-94 in European Journal of Taxonomy 865 on pages 77-80, DOI: 10.5852/ejt.2023.865.2097, http://zenodo.org/record/7867448