Quindina horologium Betancourt-Caicedo & Vásquez-Ordóñez & Pinto-da-Rocha & Cabra-García 2024, sp. n.
Creators: name: Betancourt-Caicedo, Alejandro
name: Vásquez-Ordóñez, Aymer Andrés
name: Pinto-da-Rocha, Ricardo
name: Cabra-García, Jimmy
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Opiliones
Nomoclastidae
Quindina
Quindina horologium

description: Quindina horologium Betancourt-Caicedo, Pinto-da-Rocha, and Cabra-García
sp. n.
(Figures 1, 3, 4, 10)
Etymology
The species name reflects the dorsal pattern of emerald-green patches, which resembles an hourglass.
Type material
Holotype (MUSENUV-Ar-2229), adult male preserved in 95% ethanol: Colombia, Risaralda Department, Municipality of Santuario, Parque Municipal Planes de San Rafael (5.125°N, 76.002°W; 2107 m elevation), 12 February 2022, C. Valencia, G. Tezna, D. Corredor, J. Cabra-García leg. Paratypes: 4 ♂ and 4 ♀ (MUSENUV-Ar-2230-2237), 1 ♂ and 1 ♀ (ICN-AO-1969- 1970), 1 ♂ and 1 ♀ (MZSP-78901), same data as the holotype.
Diagnosis
Ocularium with two tubercles near each eye. Hourglass-shaped dorsal emerald-green spot pattern, beginning as two stripes next to the ocularium and continuing to the posterior margin of area III (Figure 1 (G, J)). Lateral margins with eight tubercles, with a small light emerald-green patch near the posterior margin (Figure 1 (G, I, J, L)). Lateral regions of free tergites with a light emerald-green patch each (Figure 1 (G, J)). Distal metatarsus I slightly swollen in the male (Figure 3 (D)). Penis with VP trapezoidal, with microsetae type 3 distributed on the dorsolateral field, around the macrosetae, with two pairs of MS-E on its dorsolateral margin and stylus short (Figure 4 (D–F)).
Comparisons
Similar to Q. bella, Q. bimaculata, Q. discolor, Q. hermesi, Q. marginata, and Q. sanantonio sp. n. due to the lack of enlarged tubercles on the posterior lateral margins of dorsal scutum. It differs from the latter species by the presence of an hourglass-shaped pattern of emerald-green dorsal spots.
Description
Male holotype (MUSENUV-Ar-2229)
Measurements. CL: 1.43; CW: 2.6; DSL: 3.28; DSW: 2.95; Fe: 3.7, 8.9, 6.05, 8.6; Pa: 0.7, 1.35, 1.1, 1.35; Ti: 2.2, 6.15, 3.15, 4.75; Mt: 3.9, 10, 5.4, 8.6. Variation in male measurements: Table 4.
Abbreviations: CL = carapace length, CW = carapace width, DSL = dorsal scutum length, DSW = dorsal scutum width, Fe = femur length, Ti = tibia length, N = number of specimens measured.
Colour in ethanol. (Figure 1 (G)–I) Dorsal scutum brown on orange-yellow background. For the description of the distribution of emerald-green patches on the dorsal scutum, see the species diagnosis. Chelicerae, pedipalps and trochanters I–IV reticulated brownish black on pale yellow background.
Dorsum. (Figures 1 (G), 3(A)) Dorsal scutum β type, anterior margin with one tubercle on each half. Ocularium with median depression, with two tubercles near each eye, one on the anterior margin and the other on the median portion. Prosoma nearly smooth. Lateral margins of dorsal scutum with one row of tubercles (8) from the middle of coxa II to the posterior region of Area III. Sulci of dorsal scutum well marked. Area I divided, with 1–2 large tubercles on each half. Area II with one large tubercle on each half. Area III with one pair of high and sharp spines with smooth base, and with one tubercle on each half. Area IV divided, with one tubercle on each half. Posterior margin of dorsal scutum smooth.
Venter. Cx I–III with a row of prominent tubercles (8–11), Cx IV with several small scattered tubercles.
Chelicerae. (Figure 3 (E)) Basal segment with three ventral tubercles and four small setiferous dorsal tubercles on bulla. Movable finger with three teeth, the distal one being a bit smaller; fixed finger with four teeth, the first basal smaller than the rest.
Pedipalps. (Figure 3 (C)) Cx with one large ventral tubercle, Tr with two ventral tubercles, smooth dorsally; Fe with one mesal subapical setiferous tubercle; Ti mesal IiiIi, ectal iIIi; Ta mesal ectal IiIi.
Legs. Cx I with one anterior and one posterior tubercle, II–III with one anterior tubercle, IV with one dorsoapical tubercle and a few small setiferous tubercles laterally. Tr I–IV with a few scattered granules. Fe III–IV with one long, spiniform retrodorsal tubercle. Distal region of metatarsus I (Figure 3 (D)) and median region metatarsus II swollen. Tarsal formula: 7 (3), 24(3), 9, 11.
Penis. (Figure 4 (D–F)) VP trapezoidal, lateral margin with a basal constriction, distal half curved, distal margin truncated. Microsetae type 3 distributed on the dorsolateral field of VP, around the macrosetae, without reaching the distal corner and without joining in the middle of VP. Three pairs of spatulated and apically curved MS C. One pair of spatulated MS A directed towards truncus. One pair of short and conical MS D at the base of VP. Two pairs of MS E on the dorsolateral margin of VP. Glans wide, with one short and conical MS on lateral basal half. Stylus short (its length less than twice stylus width), wide apically.
Nest characteristics. Only one nest was found during the sampling. The nest had a male on top of it and was built ca. 2.2 m above the ground level near the apex of the underside of a leaf (Figure 10 (F)). The nest had an irregular shape, and it was a flattened structure adhered directly to the substrate, without walls. The nest was made of vegetative debris and mud.
Female paratype (MUSENUV-Ar-2230)
Measurements. CL: 1.38; CW: 2.93; DSL: 3.8; DSW: 3.55; Fe: 3.55, 8.6, 6.1, 8.5; Pa: 0.7, 1.35, 1.15, 1.25; Ti: 1.95, 6, 3, 4.55 Mt: 3.4, 8.75, 7.5, 8.15. Variation in female measurements: Table 2. Female morphology very similar to male, with a few differences: chelicerae slightly smaller and lighter in colour (Figure 1).
Distribution. Recorded in the Colombian department of Risaralda. The locality Parque Municipal Planes de San Rafael constitutes an Andean cloud forest (Isaacs-Cubides et al. 2021), located in the municipality of Santuario.
description: Published as part of Betancourt-Caicedo, Alejandro, Vásquez-Ordóñez, Aymer Andrés, Pinto-da-Rocha, Ricardo & Cabra-García, Jimmy, 2024, Two new species of the genus Quindina Roewer, 1914 (Opiliones: Nomoclastidae) from Colombia: phylogenetic relationships and notes on their nest architecture, pp. 1937-1959 in Journal of Natural History 58 (41 - 44) on pages 1945-1949, DOI: 10.1080/00222933.2024.2403562, http://zenodo.org/record/14241481