Figs. 7–8, 42–47, 66–67, 75, 84–85
Types. Holotype: male (CNAN-T01041) from San Sebastían del Oeste, road to Cerro de “La Bufa” (20.7495°N, 104.8283°W, 1681 m), Jalisco, Mexico, 28.VI.2016, D. Guerrero-Fuentes, G. Contreras-Felix, G. Montiel-Parra & L. Olguín leg. Paratypes: 2 ♀ (CNAN-T01042), same data as holotype.
Additional material examined. MEXICO, Jalisco: 3 ♀ (CNAN-Ar 011161), same locality as types, 12.IX.2017, D. Guerrero, G. Montiel, R. Paredes & I. Salgado leg.; 2 ♁, 2 ♀ (CNAN-Ar 011162), same locality as types, 14.VI.2018, D. Guerrero, G. Contreras & J. Arreguin leg.
Etymology. The epithet is a noun in apposition, and refers to the faunus in the Roman mythology, a fantastic creature who lived in the woods, the usual habitat of Anicius species.
Diagnosis. This species resembles A. cielito sp. nov. in general color pattern (Figs 7–8), but we can distinguish A. faunus from the remaining species of Anicius by the male genitalia: A. faunus has a needle-shaped embolus, similar to A. dolius Chamberlin and A. maddisoni sp. nov., but differs from those because the embolus is straight or less curved (Figs 66, 75), and TL has a triangular retromarginal crest (Fig. 67). The female has brown leg I with yellow tarsus (Fig. 47).
Description. Male (holotype CNAN-T 01041). Total length: 4.50. Prosoma: 2.10 long, 1.60 wide and 0.70 high. Opisthosoma: 2.40 long, Eye field: 1.00 long, anterior width 1.40, posterior width 1.40. Cheliceral length 0.50. Length of leg segments: I 1.50 + 0.80 + 1.00 + 0.90 + 0.50 = 4.90; II 1.00 + 0.50 + 0.70 + 0.60 + 0.40 = 3.20; III 1.00 + 0.50 + 0.50 + 0.60 + 0.40 = 3.00; IV 1.20 + 0.50 + 0.80 + 0.80 + 0.40 = 3.70. Leg spination: I: Fm d 1-1-1, p 0-0-2; Pt p 0-1-0; Tb v 2-2 -2; Mt v 0-2- 2. II: Fm d 1-1-1, p 0-0-2, r 0-0-1; Tb v 1-1 -2, p 0-1-1; Mt v 0-1- 2. III: Fm d 1-1-1, p 0-0-2, r 0-0-1; Tb v 0-0-1, p 0-1-0, r 0-1-1; Mt p 0-0-2, r 0-0- 2. IV: Fm d 1-1-1, p 0-0-1, r 0-0-1; Tb v 1 -0-2, p 0-1-0; Mt pl 0-1-2, r 0-0-1. Body coloration: specimens in alcohol turn to a brownish yellow color with metallic scales. Carapace dark brown, with a white band of setae around the lateral margins of the carapace and across the clypeus (Figs 42, 44). Abdominal white bands followed by one pair of white spots and a pair of dark spots (Figs 7, 42, 44). Chelicera: triangular and brown, as described for the genus. Thoracic area: as described for the genus (Figs 43, 46). Legs: I dark brown, stouter and longer than the other legs; II–IV thin, pale-yellow with darker spots (Figs 7, 42–44). Opisthosoma: dorsally deep dark brown (Figs 42–44). Palp: Embolus granulated (Fig. 75), large and thin, slightly curved at 75° (Fig 66–67, 75); TL rectangular with a triangular crest, bulb oval, longer than wide (Figs 66–67); RTA hook-like.
Female (paratype CNAN-T 01042). Total length: 4.30. Prosoma: 1.70 long, 1.30 wide, 0.70 high. Opisthosoma: 2.60 long. Eye field: 0.70 long, anterior width 1.00, posterior width 1.00. Chelicera length 0.40. Length of segments: I 0.80 + 0.40 + 0.55 + 0.40 + 0.30 = 2.60; II 0.60 + 0.35 + 0.40 + 0.35 + 0.30 = 2.00; III 0.60 + 0.40 + 0.40 + 0.30 + 0.30 = 1.95; IV 0.80 + 0.40 + 0.50 + 0.40 + 0.35 = 2.55. Leg spination: I: Fm d 1-1-1, p 0-0-2; Tb v 2-2 -2; Mt v 0-2- 2. II: Fm d 1-1-1, p 0-0-2; Tb v 1-1 -2, p 0-0-1; Mt p 0-1-1, r 0-0- 1. III: Fm d 1-1-1, p 0-0-2, r 0-0-1; Tb v 0-0-2, p 0-1-1; Mt pl 0-0-2, r 0-0- 2. IV: Fm d 1-1-1, p 0-0-1, r 0-0-1; Tb v 1 -0-1, p 0-1-0; Mt p 0-0-2, r 0-0-1. Differences with the male: Legs: I stout and slightly longer than IV, dark brown with yellow tarsus (Figs 45–47); II–IV yellow without markings (Fig. 45). Palp: yellow. Opisthosoma: noticeably wider than in male (Figs 45–47). Epigyne: simple, CD with the convergent-divergent pattern, and with three loops (Figs 84–85).
Variation. Males (n = 3). Total length: 3.60–4.60. Prosoma: 1.70–2.10 long, 1.00–1.60 wide. 0.70–1.00 high. Opisthosoma: 1.90–2.50 long, 1.10–1.20 wide. Ocular quadrangle: 0.80–1.00 long, anterior width 1.00–1.20, posterior width 1.00–1.20 wide. Females (n = 7). Total length: 3.50–4.30. Prosoma: 1.60–1.80 long, 1.30 wide. 0.70 high. Opisthosoma: 1.70–2.60 long, 1.60–1.90 wide. Ocular quadrangle: 0.70 long, anterior width 1.00, posterior width 1.00. Some females (n = 4) do not have the medial longitudinal darker band well-defined. One male has a single-cuspid retromarginal tooth instead bicuspid, visibly torn due aging.
Natural history. Specimens were found during the day wandering on trees in pine-oak forest (Fig. 21).
Distribution. Only known from type locality (Fig. 17).