Neostasina demaco, Rheims & Alayón, 2022

Rheims, Cristina A. & Alayón, Giraldo, 2022, Additions to the genus Neostasina Rheims & Alayón (Araneae: Sparassidae: Sparianthinae), European Journal of Taxonomy 821, pp. 166-199 : 179-181

Neostasina demaco sp. nov.

urn:lsid:zoobank.org:act:A8C47D2D-06BE-4D20-AC69-6E860212D77B

Figs 6 , 8 A−C, 19

Diagnosis

Females of N. demaco sp. nov. resemble those of N. turquino ( Rheims & Alayón 2016: figs 143−145) by the epigyne with MS subrectangular. They are distinguished from the latter species by the ar mostly straight and posterior margin of MS at level with tips of posterior projections of LL ( Fig. 8A ) (ar M-shaped and MS surpassing tips of posterior projections of LL in N. turquino ). Males are unknown.

Etymology

The specific name refers to the type locality; noun in apposition.

Material examined

Holotype DOMINICAN REPUBLIC • 1 ♀; Santiago Rodríguez Province; Parque Nacional Nalga de Maco [19.2000, 71.4833]; 7 Dec. 2009, G. Alayón leg.; MNHNPEJM.

Description

Female (holotype)

COLOR. Prosoma pale brown; cephalic region with faint lines extending posteriorly from PME; thoracic region with brown margins and scattered markings between thoracic striae; fovea brown; eye borders black. Chelicerae brownish orange, slightly darker than prosoma. Legs and palps pale brown with scattered brown spots. Labium and endites brown, distally pale brown. Sternum pale brown with slightly darker margins. Opisthosoma brownish gray; dorsally with few gray spots anteriorly ( Fig. 6 A−B).

MEASUREMENTS. Total length 10.3, prosoma length 5.1, width 3.4, opisthosoma length 4.6, width 3.0. Eye diameters: 0.23, 0.20, 0.15, 0.19; interdistances: 0.22, 0.17, 0.40, 0.36, 0.22, 0.10. Legs (2143): I: 12.3 (3.6, 2.0, 3.2, 2.8, 0.7); II: 12.8 (3.8, 2.0, 3.2, 3.0, 0.8); III: 10.0 (3.2, 1.6, 2.2, 2.3, 0.7); IV: 12.2 (3.9, 1.5, 2.5, 3.4, 0.9).

EPIGYNE. EF as long as wide; ar entire; MS wider than long ( Figs 6C , 8A ).

VULVA. GP longer than wide, postero-mediad; SP encapsulated within sclerotized structure, with internal ducts inconspicuous; FD postero-mediad ( Figs 6D , 8 B−C).

Distribution

Only known from the type locality in the Dominican Republic (Santiago Rodríguez Province) ( Fig. 19 ).

Figures

Fig. 6. Neostasina demaco sp. nov., holotype, ♀ (MNHNPEJM). A. Habitus, dorsal view. B. Habitus, ventral view. C. Epigyne, ventral view. D. Vulva, dorsal view. Scale bars: A−B = 2 mm; C−D = 0.5 mm.

Fig. 8. A−C. Neostasina demaco sp. nov., holotype, ♀ (MNHNPEJM). A. Epigyne, ventral view. B. Vulva, dorsal view. C. Schematic course of internal duct system. D−F. Neostasina juanita sp. nov., holotype, ♀ (MCZ 30720). D. Epigyne, ventral view. E. Vulva, dorsal view. F. Schematic course of internal duct system. Abbreviations: ar = anterior rim; CD = copulatory duct; FD = fertilization duct; GP = glandular projection; LL = lateral lobe; MS = median septum. Scale bars = 0.5 mm.

Fig. 19. Distribution map for the genus Neostasina Rheims & Alayón, 2016 (Dominican Republic and Haiti).