Eutimesius ornatus ( Roewer, 1943 )

Villarreal, Osvaldo, Ahumada-C., Daniela & Navas-S., Gabriel R., 2024, Exploring the diversity of Eutimesius Roewer, 1913: new species and records from Colombia and Venezuela (Opiliones, Gonyleptoidea, Stygnidae), Zoosystematics and Evolution 100 (3), pp. 803-820 : 803-820

Eutimesius ornatus ( Roewer, 1943)

Fig. 2

Bunistygnellus ornatus Roewer, C. - F. (1943): 37, figs 37–37 a.

Eutimesius ornatus : Pinto-da-Rocha (1997): 187, figs 57–64, 461–462, 597.

Remarks.

Eutimesius ornatus ( Roewer, 1943) was described from Bogotá, Colombia ( Roewer 1943), and recorded from Venezuela on a female specimen from the northeastern region of San Cristóbal in Táchira state ( Pinto-da-Rocha 1997). However, this particular specimen exhibits clear discrepancies when compared to the male holotype (MCR- 3862, SMFD, Pinto-da-Rocha 1997: figs 57, 58, 61, 63, 64), specifically in the pattern of white, dry spots and the size and shape of the spines in area III. While the pattern of white dry spots has displayed stability or minimal intraspecific variation in the specimens examined by us, for example, females with larger spots (Figs 5 A, B , 9 A, B ), the pronounced aforementioned differences observed between the male and female of E. ornatus as depicted by Pinto-da-Rocha (1997), coupled with the geographical distance between both disjunct populations, raise the question regarding the identity of the female from Venezuela. E. ornatus ”, Therefore , we propose that the female from Venezuela represents an undescribed species distinct from E. ornatus .

Figures

Figure 2. Map showing the distribution of Eutimesius.

Figure 5. Eutimesius aroa sp. nov., male (MIZA 0105934): A. Habitus, dorsal view; B. Ditto, lateral view; C. Right chelicera, frontal view; D. Right pedipalp, tibia, and tarsus, ectal view; E. Ditto, mesal view; F. Right leg IV, dorsal view; G. Ditto, ventral view. Scale bars: 1 mm.

Figure 9. Eutimesius ephippiatus: A. Male habitus, dorsal view (ICN-Ao - 1492); B. Female habitus, dorsal view (ICN-Ao - 18); C. Male habitus, lateral view (ICN-Ao - 1492). Scale bars: 1 mm.