Paravima magistri, García & Villarreal, 2023

Garcia, Andres F. & Villarreal, Osvaldo, 2023, Looks are deceiving: a cladistic analysis, three new species, and a new diagnosis of Paravima Caporiacco, 1951 (Opiliones: Agoristenidae), Arthropod Systematics & amp; Phylogeny 81, pp. 409-437 : 409

Paravima magistri sp. nov.

Figs 7 , 8 , 18 , 19G

Diagnosis.

Mesotergal area III with large paramedian spines (the remaining species of Paravima , except P. morritomacairensis , without ornamentation or with conical, mammilliform or domed tubercles). Can be distinguished from that species by the coloration of mesotergal areas I-IV darker than the rest of the DS (concolorous in P. morritomacairensis ).

Description.

Holotype (ICN-Ao-1671.1). Measurements: CL: 0.8, AL: 1.6, CW: 1.6, AW: 2.1, BaCh: 0.3, IOD: 0.5; Pedipalp: Tr: 0.4, Fe: 0.5, Pa: 0.5, Ti: 0.5, Ta: 0.5, Claw: 0.4; Leg I (Tr: 0.3, Fe: 3.8, Pa: 0.6, Ti: 2.5, Mt: 4.7, Ta: 1.5); Leg II (Tr: 0.4, Fe: 8.7, Pa: 0.9, Ti: 7.0, Mt: 8.7, Ta: 3.3); Leg III (Tr: 0.5, Fe: 6.8, Pa: 1.0, Ti: 3.6, Mt: 7.4, Ta: 1.7); Leg IV (Tr: 0.7, Fe: 9.7, Pa: 1.1, Ti: 5.0, Mt: 10.8, Ta: 2.6). - Dorsum: Anterior and lateral margins of DS smooth. Ocularium smooth (Figs 7B , 8A ). Mesotergum delimited, darker than the rest of the DS, divided into four areas, with some granules. Area I divided into two halves, each one with a pair of tubercles; area II-IV undivided; II with a pair of medium-sized tubercles close to the medial axis of the body (Figs 7B, C , 8A ); III with a pair of high paramedian spines (Figs 7C, E , 8A, B ); IV with four small tubercles. Posterior border of scutum substraight, with a row of tubercles. Free tergites I-II and anal operculum with a few tubercles (Fig. 8A ). - Venter: Coxae I-IV with some granules (Fig. 7D ). Coxa I with a longitudinal row of tubercles at the medial region, being the third larger than the others, three large tubercles reaching the anterodistal region, and one small tubercle close to the posterodistal margin (Fig. 8C ); coxa II longer than coxa I; coxa III longer than I and II; coxa IV backward projected (Fig. 7D ). Sternites and anal operculum with a few small tubercles. Stigmatic area smooth. Stigmata large, oval and transverse (Fig. 7D ). - Chelicerae: Segment I rectangular, with well-marked bulla (Fig. 7B, C ), two small ectal subdistal tubercles, and two separated tubercles on the proximal border (Fig. 7B ). Chelicera not swollen, monomorphic (Figs 7C, E , 8A ). Hand with some sparse setiferous tubercles of different sizes on the frontomesal region, a group of setae on the mesal face of the fixed finger, and some setiferous tubercles close to the base of the fixed finger (Fig. 8D ). Fixed finger with the inner surface irregularly dentated. Movable finger with one trapezoid, sub-basal tooth and with the inner surface dentate (Fig. 8D ). - Pedipalps: Longer than DS length, smooth. Tr ventrally with two subapical tubercles. Fe with a ventromesal row of six setiferous tubercles (the second and the third larger than the others), and one large ventroectal setiferous tubercle in the distal portion (Figs 7C , 8E ). Pa with one large mesal setiferous tubercle. Ti ectal II, mesal iII. Ta ectal IIi, mesal IIii (Fig. 8E ). - Legs: Legs I-IV smooth. Leg I filiform, the rest, getting steadily thicker from leg II to IV. Fe IV four times DS length (Fig. 7A ). Tarsal counts: 7(3)-8(3)/18(3)-18(3)/7-7/7-7. - Penis: LP short and depressed, half-moon shaped, with anterolateral blunt corners apically pointed (Figs 8F-H ). Malleus carrying the branched MS-A-B (two pairs of MS-A and one pair of MS-B in a diagonal alignment) (Fig. 8H ). MS-D1-2 short, located in an oblique line on a keel between the LP and the base of the stylus (Fig. 8G, H ). MS-E2 medium-sized and branched (Fig. 8F ). Stylus straight, surpassing the lamina parva, tip truncate (Fig. 8H ). - Color (in ethanol): Carapace reticulated dark brown (59) on light orange yellow (70). Mesotergum dark brown (59). Pedipalps and chelicerae deep yellowish brown (75). Posterior border and free tergites Dark Olive (108). Legs I-IV dark yellowish brown (78).

Remarks.

The coloration in vivo (Fig. 19G ) is quite different, with carapace, chelicerae, pedipalps, coxae and trochanters strong reddish brown (40); laterals of DS vivid orange yellow (66); mesotergum and medial region of free tergites brownish black (65); free tergites vivid yellow green (115); and the rest of the legs brownish black (65). - Female: Chelicerae of the same size as male (monomorphic). Femora slightly thinner than in male.

Derivatio nominis.

The species name honors professor Eduardo Flórez, curator of the ICN Arachnological collection. Professor, in Latin magister, ( Paravima magistri in genitive case), in recognition of his excellent work in the teaching and development of arachnology in Colombia and his interest in the divulgation of scientific knowledge about the arthropods in the country.

Distribution.

Known just from the type locality, RN Los Tunos, Cundinamarca department, in the Magdalena biogeographic province (Fig. 18 ).

Material examined.

Type material: Holotype ♂, COLOMBIA, Cundinamarca, San Antonio del Tequendama, Reserva Natural Los Tunos , colecta manual diurna | [4.56071° -74.31366°] | 2300 m |, 28.v.2012, D. Martínez leg. (ICN-Ao-1671.1) . - Paratypes 2 ♀ 2 ♂, same data as holotype, (ICN-Ao-1671) ; 4 ♂, same data as holotype, (ICN-Ao-1980) ; 2 ♀ 2 ♂, same data as preceding, 28-29.vii.2021, S. Galvis and A.F. García leg. (MNRJ 1179) ; 1 ♂ 1 ♀, same data as previous, (MUSENUV-Ar 2112) .

Figures

Figure 7. Paravima magistri sp. nov. (ICN-Ao- 1671.1) male holotype. Habitus: A Panoramic view; B dorsal view; C lateral view; D ventral view; E anterior view. Scale bars: 1 mm.

Figure 8. Paravima magistri sp. nov. (ICN-Ao- 1671.1) male holotype. A Habitus, dorsal view; B lateral view; C left coxa I, ventral view; D chelicera, anterior view; E Pedipalp, mesal view. Apical part of the penis: F Dorsal view; G ventral view; H lateral view. Scale bars: A, B = 1 mm; C-E = 0.5 mm; F-H = 0.05 mm. Abbreviation: Macrosetae (MS).

Figure 18. Map showing the geographic distribution of Paravima in Northern South America. The background colored shapes refer to the biogeographic provinces of Morrone et al. (2022).

Figure 19. Living specimens and habitats of some Paravima spp. A, B P. quirozi from Yaracuy, Venezuela; C, D P. goodnightorum, from Cerro El Volcan, Miranda, Venezuela (MIZA 0105871); E, F P. goodnightorum, from La Guaira, Venezuela; G P. magistri sp. nov., from San Antonio del Tequendama, Cundinamarca, Colombia; H La Guaquira, Yaracuy, habitat of P. quirozi; I Henri Pittier National Park, Aragua, Venezuela, habitat of P. totoro sp. nov.; J, K Los Tunos Natural Reserve, Cundinamarca, Colombia, habitat of P. magistri sp. nov.