Libitia iguaque, Medrano & Ázara & Kury, 2020

Medrano, Miguel, Ázara, Ludson Neves de & Kury, Adriano Brilhante, 2020, The short-legged Andean cosmetids revisited: the genus Libitia Simon, 1879 with description of two new species (Opiliones, Cosmetidae), European Journal of Taxonomy 634, pp. 1-25 : 16-18

Libitia iguaque sp. nov.

urn:lsid:zoobank.org:act:E1CD5C3A-5C52-461C-A2D5-F0785E40A931

Figs 11–12 , 14

Diagnosis

Can be separated from all the other species of the genus in having the coda shorter than mid-bulge, maximum width of dorsal scutum equal to maximum length ( Fig. 11A ). Three basitarsomeres in legs I and III ( Fig. 11 B–C). VP of the penis with MS D1 equally distanced from MS D2 and MS C2 ( Fig. 12 A–D).

Etymology

Noun in apposition from Iguaque, which in the Chibcha language means ‘vigorous mountain’ and was the cultural epicenter in the Amerindian period; as sacred territory it represented, for the Muiscas, the universe in continuous regeneration: birth, fecundity, fertility and initiation, symbol of ascent and interior knowledge. Also, it is the name of the Sanctuary that is the type locality of the species.

Material examined

Holotype

COLOMBIA • ♂; Boyacá Department, Santuario de Fauna y Flora Iguaque ; 5.70175° N, 73.456222° W; 2941 m a.s.l.; 26–27 Nov. 2011; A. García and A.B. Kury leg.; MNRJ 19765 .

Paratypes

COLOMBIA – Boyacá Department • 3 ♂♂, 3 ♀♀; same collection data as for holotype; MNRJ 19379 • 1 ♀; Qda. Los Francos; IAvH-I-82 • 1 ♀; Cabaña Carrizal ; 5.6833° N, 73.4500° W; 2850 m a.s.l.; IAvH-I-91 • 1 ♀; same collection data as for preceding; IAvH-I-92 • 1 ♀; Villa de Leyva ; 5.720016° N, 73.457901° W; 2900 m a.s.l.; 20 Aug. 1998; IAvH-I-17 • 1 ♀; Villa de Leyva , S.F.F Iguaque; 5.697856° N, 73.453133° W; 10 Apr. 2001; coprotrampa; ICN-AO 771 .

Description

Male holotype (MNRJ 19765)

MEASUREMENTS. CL = 1.5, AL = 2.6, CW = 2.7, AW = 3.6, IOD = 0.6, Fe I = 2, Ti I = 1.3, Fe II = 3, Ti I = 2.1, Fe III = 2.8, Ti III = 1.6, Fe IV = 2.9, Ti IV = 2.5.

DORSUM ( Fig. 11 A–D). Dorsal scutum alpha-type, areas I–III, anterior and posterior margin of scutum, and lateral margins with granules. Free tergites with rows of granules and anal operculum finely granular. Posterior margin of dorsal scutum convex. Marginal lateral grooves of areas I and II with fragmented yellow rails.

VENTER. Free sternites finely granular; coxae II–IV finely and uniformly granular; coxa I with longitudinal row of tubercles and smooth area corresponding to lace area of pedipalp. Anal operculum finely granular.

CHELICERAE ( Fig. 12 F–G). Basichelicerite finely and uniformly granular covered without notable tubercles, ectodistal small setiferous protuberance; movable finger with row of eight sharp teeth; fixed finger with seven triangular teeth (the middle teeth are larger).

PEDIPALPS ( Fig. 12E ). Trochanter with strong ventral apophysis. Femur dorsally convex without pronounced dorsal keel or tubercles, with ventral row of three well-formed setiferous tubercles and a mesodistal process. Patella with mesal keel. Shallow slit along tibia mesal surface, separating dorsal and ventral sides.

LEGS ( Fig. 11 E–F). Coxa IV granulated with distal prodorsal small apophysis. Femur IV substraight, with two longitudinal ventral rows of small tubercles along entire length. Tarsal counts: 6(3)/8-7(3)/6/6.

COLOR ( Fig. 11 ). Body background Strong Yellowish Brown (74) mottled in Deep Yellowish Brown (75), ladder mask Pale Greenish Yellow (104). Appendages (except coxae) Brilliant Yellow (83).

Female

Similar to males, with coda longer. Basitarsomeres I, III and IV not enlarged. Tarsal counts (MNRJ 19379): 6(3)/7-6(3)/6/6.

Variation

No remarkable variation was encountered in spots of DS in the specimens examined.

Figures

Fig. 11. Libitia iguaque sp. nov., ♂ (MNRJ 19765), habitus. A. Dorsal view. B. Dorsal view, panoramic. C. Frontal view. D. Lateral right view. E–F. Right femur IV, dorsal and ventral view, respectively. Scale bars = 1 mm.

Fig. 12. Libitia iguaque sp. nov., ♂ (MNRJ 17379). A–D. Distal part of penis. A. Dorsal view. B. Ventral view. C. Left lateral view. D. Right lateral view. E. Right pedipalp, ventral view. F–G. Left chelicera, dorsal and frontal view, respectively. Scale bars: A–D = 50 μm; E–F = 200 μm; G = 100 μm.

Fig. 14. Central Colombia, showing the distribution of species of Libitia Simon, 1879 (inset: NW South- America, for context). Highlighted Colombian departments are from north to south: Boyacá (red), Cundinamarca (orange) and Meta (yellow).