Caipira baiana Huber 2026, sp. nov.

3.2. 4.Caipira baianaHuber sp. nov. Figures 3 c – d, 15–18 Material examined. Holotype: BRAZIL - Bahia • ♂; W of Queimada Nova; 11.0343°S, 42.0682°W; 580 m a. s. l.; 25 Nov. 2022; B. A. Huber & A. S. Michelotto leg.; CHNUFPI 9076. — Paratypes: BRAZIL - Bahia • 1 ♂, 1 ♀; same collection data as for holotype; CHNUFPI 9077 • 1 ♂ (together with one female abdomen, dissected and epigynum cleared, transferred from ZFMK Br 22-229; voucher for G 58); same collection data as for holotype; CHNUFPI 9078 [deposited in ZFMK Ar 24706]. — Other material examined: BRAZIL - Bahia • 1 ♂, 3 ♀♀ (one female prosoma used for molecular work; abdomen transferred to ZFMK Ar 24706), in pure ethanol; same collection data as holotype; CHNUFPI 9079 [deposited in ZFMK Br 22-229; voucher for UH 501]. Diagnosis. Easily distinguished from C. mineira Huber sp. nov. by much slenderer male palpal femur with ventral apophysis (compare Figs 5 and 15) and by larger distances between male cheliceral apophyses and between female epigynal pockets (compare Figs 7 and 17). From all other known Pholcidae by shape of procursus (Fig. 16 a – c; slender, distally with heavily sclerotized element with pointed tip); also by strong apophysis prolateral-ventrally on male palpal femur (arrow in Fig. 15 a), by shape of genital bulb (Fig. 16 d – f; prolateral-dorsal protruding flap; dorsal ridges), by armature of male chelicerae (Fig. 17 a – c; pair of lateral sclerotized humps and pair of distal lateral pointed apophyses directed towards median), by pair of rounded processes on male clypeus (Fig. 17 a), and by female epigynum and internal genitalia (Figs 17 d, e, 18; main anterior plate with pair of pockets and additional pair of frontal lateral sclerotized areas; internal genitalia with arched element and pair of small elongated pore plates). Description. MALE (holotype). Measurements: Total length 1.30, carapace width 0.58. Distance PME – PME 40 µm; diameter PME 60 µm; distance PME – ALE 15 µm; AME absent (no lenses, only black mark). Leg 1: 3.22 (0.88 + 0.20 + 0.88 + 0.88 + 0.38), tibia 2: 0.84, tibia 3: 0.64, tibia 4: 0.84; tibia 1 L / d: 13. — Color (in ethanol): Prosoma and legs mostly whitish to pale ochre-yellow, carapace with pair of ochre marks beside ocular area, clypeus also slightly darkened; sternum monochromous whitish; legs with darker rings on femora (subdistally) and tibiae (proximally and subdistally); abdomen ochre gray, with distinct white marks except on ventral side. — Body: Habitus as in Fig. 3 c. Ocular area barely raised. Thoracic groove shallow. Clypeus with pair of short rounded processes near margin and many strong hairs directed upwards (Fig. 17 a). Sternum wider than long (0.38 / 0.34), unmodified. Abdomen globular. — Chelicerae: As in Fig. 17 a – c, with pair of distal lateral pointed apophyses directed towards median, and pair of proximal lateral sclerotized humps; without stridulatory ridges. — Palps: As in Fig. 15; coxa with low ventral hump; trochanter unmodified; femur relatively small (smaller than tibia), with strong prolateral-ventral sclerotized apophysis (arrow in Fig. 15 a), distally strongly widened; femur-patella condyles not shifted to one side; tibia with two trichobothria; tibia-tarsus condyles strongly shifted toward retrolateral side; tarsus with prolateral-ventral process at basis of procursus; procursus (Fig. 16 a – c) proximally simple, distally with heavily sclerotized element with pointed tip; genital bulb (Fig. 16 d – f) slightly elongated and medially constricted, with distinctive prolateral-dorsal protruding flap and dorsal ridges, sperm duct opening not seen (presumably on distal membranous part). — Legs: Without spines, without curved hairs. With sexually dimorphic short ‘ vertical’ hairs on tibia 1 only (confirmed in compound microscope; not visible in dissecting microscope). Ventrally on metatarsi 3 and 4 with slender hairs (confirmed in compound microscope; not visible in dissecting microscope). Retrolateral trichobothrium of tibia 1 at 61 %; prolateral trichobothrium absent on tibia 1. No tarsal pseudosegmentation visible (also in compound microscope). Main tarsal claws and median tarsal claw as typical for family. Variation. MALE. Tibia 1 in three other males: 0.82, 0.82, 0.84. Description. FEMALE. In general, very similar to male (size, body shape, color pattern; Fig. 3 d), but clypeus unmodified and legs without sexually dimorphic short ‘ vertical’ hairs. One female with tiny AME lenses (diameter ~ 5 µm). Palpal tibia with two trichobothria. Tibia 1 in three females: 0.70, 0.72, 0.82. Epigynum (Fig. 18 a, b) anterior plate wide and short, with pair of pockets and additional pair of frontal lateral sclerotized areas; posterior epigynal plate very short, indistinct. Internal genitalia (Figs 17 e, 18 c, d) with strong arched element (visible in uncleared specimens) and pair of small, elongated pore plates. Etymology. The species name is an adjective, describing someone originating from Bahia state, Brazil. Distribution. Known from type locality only, in Bahia state, Brazil (Fig. 4). Natural history. The type-locality is in the Irecê district of the Caatinga domain (sensu Moro et al. 2024). All specimens were found in an old collapsed low stone fence in thorny woodland (Fig. 19 b). They shared this microhabitat with three further species of Pholcidae: Ibotyporanga diroa Huber & Brescovit, 2003; an undescribed species of Mesabolivar González-Sponga, 1998; and an undescribed species tentatively assigned to Tupigea Huber, 2000. One egg sac contained eleven eggs; egg diameter 0.38–0.39.