Juxtlacampa gabrielleae Sendra & Wynne & Sánchez-García & Jiménez-Valverde & Selfa & Palacios-Vargas & Brunet & Ferreira 2026, sp. nov.

Juxtlacampa gabrielleae Sendra & Ferreira sp. nov. urn:lsid:zoobank.org:act: FFA017B8-2D53-469F-B80B-1DF84D1E1E6F Figs 1–6 Diagnosis Epicuticle reticulated with blunt tip spines. Antennae shorter than the body length with 24 antennomeres. Third antennomere with bacilliform sensillum between c and d macrosetae; trichobothria with large, protruding base, showing typical distribution pattern. Cupuliform organ with about ten complex olfactory chemoreceptors; each with two complete folds surrounding central cylinder. Few ‘rosette-like’ cuticular gland formations on antennomeres. Frontal process slightly protruding, plain, with non-tubercular setae. Pronotum with 1+1 ma and 1+1 lp 3 macrosetae; mesonotum with 1+1 ma; notal macrosetae relatively short and covered by thin distal barbs; marginal setae slightly longer and thicker than clothing setae and covered throughout with short barbs. Pretarsus of metathoracic legs reaching end of abdomen. Tibiae I–III without macrosetae. Claws subequal, emerging from ending of abrupt tarsus; both claws elbow at basal portion with slightly backward overhang; lateral crests well-developed on dorsal, with ventral side almost smooth. Pretarsal lateral process with basal portion in laminar shape narrowing almost abruptly in distal portion in thin prolongation overpassing end of the claws. 1+1 lp macrosetae on urotergite VIII, 4+4 lp 1–4 on urotergite IX, and 3+3 mp on abdominal segment X. Urosternite I with 8+1+8 macrosetae; II–VII with 4+4 and VIII with 2+2 macrosetae. Apical stylar seta divided into two to three branches from its base with strong short barbs; subapical stylar seta with strong short barbs; and ventromedial stylar seta with few thin short barbs. Cerci up to 3 times longer than body length with up to 64 primary articles. Male urosternite I with slightly enlarged short subcylindrical appendages each with glandular a 1 and g 1 glandular setae. Female appendages similar to male with glandular a 1 setae. Etymology The specific epithet is in honour of the cave biologist Gabrielle Soares Muniz Pacheco for her valuable contributions to the knowledge of cave fauna in Guatemala. Type material Holotype GUATEMALA • 1 ♀; Raxruhá, Alto Verapaz, Cueva Blanca cave; 15.866313° N, - 90.095303° W; elev. 306 m; 27 Jun. 2017; G. Pacheco leg.; MZB 2024-3911. Paratypes GUATEMALA • 1 ♀, 1 ♂; same data as for holotype; ♀ MZB 2024-3912, ♂ MZB 2024-3913 • 4 ♀♀, 1 ♂, 1 juvenile; same data as for holotype; 15.865118° N, 90.095068° W; elev. 208 m; 27 Jun. 2017; G. Pacheco leg.; ♀♀ MZB 2024-3914 – MZB 2024-3917, ♂ MZB 2024-3918, juvenile MZB 2024-3919. Other material examined GUATEMALA • 1 ♂; Flores, Peñón, Actun Kan cave; 16.902757° N, - 89.895371° W; elev. 174 m; 30 Jun. 2017; G. Pacheco leg.; ASPC. BELIZE – Cayo District • 1 ♂; San Ignacio, Actun Tunichil Muknal cave; 17.113361° N, - 88.862745° W; 2 Jul. 2017; G. Pacheco leg.; ASPC. Description BODY. Length 3.3–5.1 mm in females, 2.6–2.7 mm in males. Epicuticle reticulated with blunt tip spines (Fig. 3E–F); body covered with short, barbed setae (Fig. 3C). HEAD. Antennae 0.6–0.7 × as long as body (length measured on four intact antennae), with 24 antennomeres. Third antennomere with bacilliform sensillum located in ventral position between c and d macrosetae; trichobothria with large, protruding base, showing typical distribution pattern (Fig. 1D). Central antennomeres 2.3 × as long as wide, apical antennomere 2.9 × as long as wide. Cupuliform organ occupying ⅛ of total length of apical antennomere, with about ten complex olfactory chemoreceptors; each olfactory chemoreceptor with two complete folds surrounding central cylinder in three entirely reticulated and perforated radial expansions (Fig. 1A–B). Few ‘rosette-like’ cuticular gland formations on antennomeres, including an apical one (Fig. 1C). ‘Gouge’ sensilla 18–21 μm long, in single distal whorl of 18–21 sensilla on each medial and distal antennomere, and with one to three pores between crossgrooves (Fig. 1E–F). Frontal process slightly protruding, plain, with non-tubercular setae; macrosetae along the insertion line of antennomere: a/i/p with relative lengths of 28/30/ 26 in holotype, X setae indistinguishable from the thin clothing setae; dorsal occipital side covered by up to 12+12 short, thin setae with thin barbs throughout. For specimens from both Actun Kan cave and Actun Tunich Muknal cave, thicker dorsal head setae. Labial palps large, suboval, with large bacilliform latero-external sensillum, two external guard setae, up to 15 setae on anterior border and up to 130 neuroglandular setae in holotype (Fig. 2). THORAX. Thoracic macrosetae distribution (Fig. 3A): pronotum with 1+1 ma and 1+1 lp 3; mesonotum with 1+1 ma; notal macrosetae relatively short and covered by thin distal barbs (Fig. 3A–D); marginal setae slightly longer and thicker than clothing setae and covered throughout with short barbs (Fig. 3A, E). Legs elongate, pretarsus of metathoracic legs slightly reaching or extending beyond end of abdomen; lengths in mm of articles of metathoracic legs (coxa/trochanter/femur/tibia/tarsus plus pretarsus/complete leg): 0.22/0.21/0.68/0.81/0.58/ 2.50 mm in holotype, 0.21/0.20/0.74/0.85/0.68/ 2.68 mm in ♀ paratype MZB2024-3912, and 0.15/0.12/0.43/0.50/0.41/ 1.61mm in ♂ paratype. Femora I–III with one barbed ventral macroseta. Tibiae I–III without macrosetae; calcars with 2–3 rows of 4–5 long barbs on one side. Tarsi with two rows of thick ventral setae with numerous thin barbs along middle portion; three dorsal subapical tarsal setae: two smooth and one well-barbed. Claws subequal, emerging from ending of abrupt tarsus; both claws elbow at basal portion with slightly backward overhang; lateral crests well-developed on dorsal, with ventral side almost smooth. Pretarsal lateral process with basal portion in laminar shape narrowing almost abruptly in distal portion in thin prolongation overpassing end of the claws. Very long barbs with hook ending on ventral side of pretarsal lateral process (Fig. 4A–D). ABDOMEN. Distribution of abdominal macrosetae on tergites: 1+1 lp on urotergite VIII, 4+4 lp 1–4 on urotergite IX, and 3+3 posterior macrosetae on abdominal segment X (Fig. 5C); all post urotergal macrosetae are long and covered with thin barbs along distal four-fifths. Urosternite I with 8+1+8 macrosetae (Fig. 5A–B); urosternites II–VII with 4+4 macrosetae plus 2+2 parastylar setae; urosternite VIII with 2+2 macrosetae (Fig. 5C); all urosternal macrosetae large and covered by long barbs along distal third to four-fifths. Apical stylar seta divided into two to three branches from its base with strong short barbs; subapical stylar seta with strong short barbs; and ventromedial stylar seta with few thin short barbs (Figs 5C, 6A, C). Large eversible vesicles with two absorbing zones: one proximal with uniform protruding surface, other distal with more evident protruding surface with regular concentric circles around external vesicle area (Figs 5C, 6B, D). CERCI. Extremely long; a complete cercus in holotype measures 16.2 mm, 3.44 × as long as the body length. Basal article covered by barbed setae with three distinguishable rows of shorter setae: two on dorsal and one on internal side; 64 primary articles with two or three constrictions, each bearing three whorls of large and long setae intercalated with shorter thinner setae, in addition to whorl of short setae in apical position. SECONDARY SEX CHARACTERS. Male urosternite I (Fig. 5A) with slightly enlarged short subcylindrical appendages each bearing up to 7 glandular a 1 setae in addition to field of about 160 g 1 glandular setae arranged in 3–5 transversal rows. Female appendages similar to male appendages, with up to 20 glandular a 1 setae (Fig. 5B). Stomach content observations All specimens from Cueva Blanca contained arthropod remains, and some contents that appeared to be appendages of mites. Specimens from Cueva del Rostro contained mineral elements and arthropod eggshells.