Neostasina juanita, 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 : 181-183

Neostasina juanita sp. nov.

urn:lsid:zoobank.org:act:C888A953-6E72-42B8-9210-BDAD0925E354

Figs 7 , 8 D−F, 21

Diagnosis

Females of N. juanita sp. nov. resemble those of N. taino ( Rheims & Alayón 2016: figs 140−142) and N. toronegro sp. nov. ( Fig. 16 A−C) by the epigyne with ar entire, recurved and MS subpentagonal. They are distinguished from both species by the spermathecae free, not encapsulated within a sclerotized structure ( Fig. 8E ) (encapsulated in the other species). They are additionally distinguished from N. taino by the ar completely covering the anterior margin of MS (not covering the anterior margin in N. taino ) and from N. toronegro sp. nov. by the ar medially angled ( Fig. 8D ) (evenly curved N. toronegro sp. nov.). Males are unknown.

Etymology

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

Material examined

Holotype PUERTO RICO • 1 ♀; Maricao [18.1808, 66.9799]; Hacienda Juanita ; old coffee plantation , 660 m a.s.l.; 2 Apr. 1989; H.L. Levi leg.; MCZ 30720 .

Description

Female (holotype)

COLOR. Prosoma pale orange brown; cephalic region with faint brown lines extending posteriorly from PME and PLE; thoracic region with faint brown margins and scattered margins between thoracic striae; fovea brown; eye borders black. Chelicerae slightly darker than prosoma. Legs as prosoma, slightly lighter; ventrally with scattered brown spots. Palps as prosoma. Labium brown, distally pale orange,

Endites pale brownish orange, distally pale brownish yellow. Sternum pale orange brown with faint pale brown margins. Opisthosoma yellowish cream colored; dorsally with scattered irregular marks laterally and on anterior half and six median brown chevrons down posterior half ( Fig. 7 A−B).

MEASUREMENTS. Total length 13.0, prosoma length 4.9, width 4.1, opisthosoma length 7.8, width 4.9. Eye diameters: 0.30, 0.25, 0.16, 0.22; interdistances: 0.25, 0.25, 0.53, 0.46, 0.21, 0.10. Legs (2143): I: 15.5

(4.4, 2.3, 4.3, 3.6, 0.9); II: 16.2 (4.9, 2.5, 4.2, 3.7, 0.9); III: 12.9 (4.0, 2.1, 2.9, 3.0, 0.9); IV: 14.8 (4.5, 1.7, 3.5, 4.0, 1.1).

EPIGYNE. EF slightly longer than wide; MS roughly as long as wide with posterior margin rounded slightly surpassing tips of posterior projections of LL ( Figs 7C , 8D ).

VULVA. GP inconspicuous; SP with single anterior twist; FD postero-mediad ( Figs 7D , 8 E−F).

Distribution

Only known from the type locality in Maricao, Puerto Rico ( Fig. 21 ).

Figures

Fig. 7. Neostasina juanita sp. nov., holotype, ♀ (MCZ 30720). 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. 16. Neostasina toronegro sp. nov., A−B: holotype, ♀ (MCZ 30719). A. Epigyne, ventral view. B. Vulva, dorsal view. C. 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. 21. Distribution map for the genus Neostasina Rheims & Alayón, 2016 (Puerto Rico).