Additions to the genus Neostasina Rheims & Alayón (Araneae: Sparassidae: Sparianthinae) Author Rheims, Cristina A. C25D9F53-D1FD-42FB-B844-40B67EA6BD97 Laboratório de Coleções Zoológicas, Instituto Butantan - Av. Vital Brasil, 1500, 05503 - 900, São Paulo, SP, Brazil. carheims@gmail.com Author Alayón, Giraldo F36CAFD1-2373-499B-A2E2-A5ECE70F0B6D Museo Nacional de Historia Natural - Obispo No. 61, Ciudad de La Habana, C. P. 10100, Cuba. moffly@infomed.sld.cu text European Journal of Taxonomy 2022 2022-06-02 821 166 199 http://zoobank.org/b4d2076b-4256-4ba2-b07f-a80c6a9cfcba journal article 63560 10.5852/ejt.2022.821.1805 7a8bf538-972c-4bc8-8c2e-3be8992c93ea 2118-9773 6607904 B4D2076B-4256-4BA2-B07F-A80C6A9CFCBA Neostasina aceitillar sp. nov. urn:lsid:zoobank.org:act: DA91446F-37DA-4E58-B6C9-90E0B01D26BA Figs 1−2 , 19 Diagnosis Females of N. aceitillar sp. nov. resemble those of N. bani sp. nov. ( Figs 4 D−E, 5E−G) by the epigyne with MS heart-shaped, with anterior median indentation and by the SP packed within a sclerotized structure with internal ducts with more than one twist. They are distinguished from those of the latter species by the indentation extending posteriorly, surpassing half MS length ( Figs 1C , 2A ) (not extending posteriorly in N. bani sp. nov. ) and by the SP bearing only two twists ( Figs 1D , 2 B−C) (three in N. bani sp. nov. ). Males are unknown. Etymology The specific name refers to the type locality; noun in apposition. Material examined Holotype DOMINICAN REPUBLIC1 ♀ ; Pedernales Province , Las Mercedes , El Aceitillar [ 18.1251 , 71.5616 ]; Carretera Km 17; 1 Feb. 2005 ; A. Sanchez leg.; MNHNPEJM Paratypes DOMINICAN REPUBLIC1 ♀ ; Duarte Province , Yuma region , Guaraguao , Parque Nacional del Este [ 18.1011 , 68.8161 ]; La Romana; 7 Jan. 1987 ; E. Marcano leg.; MNHNPEJM 2 ♀♀ ; Independencia Province ; El Naranjo [ 18.3333 , 71.6167 ]; Puerto Escondido , Sierra de Baoruco ; 26−27 Jan. 1991 ; G. Alayón leg.; MNHNPEJM . Description Female ( holotype ) COLOR. Prosoma pale brownish orange; cephalic region with pair of dark brown stripes extending posteriorly from PME; thoracic region with brown striae extending from fovea to lateral margins; fovea brown; eye borders black. Chelicerae brown, slightly darker than prosoma with pair of longitudinal dark brown stripes. Legs and palps pale brownish orange, slightly lighter than prosoma. Labium dark brown, distally cream colored. Endites brown, distally cream colored. Sternum pale brownish orange with slightly darker margins. Opisthosoma brownish gray; dorsally with faint brown pattern of scattered irregular marks; ventrally with few scattered brown spots. Spinnerets pale yellowish brown ( Fig. 1 A−B). Fig. 1 . Neostasina aceitillar sp. nov. , A−B: paratype, ♀ (MNHNPEJM), C−D: 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. 2. Neostasina aceitillar sp. nov. , A−B: holotype, ♀ (MNHNPEJM). A . Epigyne, ventral view. B . Vulva, dorsal view. C . Schematic course of internal duct system. Abbreviations: am = anterior margin; ar = anterior rim; CD = copulatory duct; FD = fertilization duct; GP = glandular projection; LL = lateral lobe; MS = median septum. Scale bars = 0.5 mm. MEASUREMENTS. Total length 16.1, prosoma length 6.6, width 5.3, opisthosoma length 8.8, width 5.5. Eye diameters: 0.41, 0.33, 0.22, 0.32, interdistances: 0.33, 0.40, 0.60, 0.66, 0.30, 0.20. Legs (4213): I: 20.4 (6.0, 3.2, 5.5, 4.6, 1.1); II: 20.9 (6.2, 3.2, 5.2, 5.1, 1.2); III: 17.0 (5.3, 2.8, 3.8, 4.1, 1.0); IV: 21.2 (6.4, 2.5, 4.7, 6.0, 1.6). EPIGYNE. EF longer than wide; ar entire, strongly recurved, not covering the anterior margin of MS; MS wider than long, posterior margin at level with tips of posterior projections of LL ( Figs 1C , 2A ). VULVA. GP longer than wide, antero-mediad; FD mediad ( Figs 1D , 2 B−C). Distribution Known from the Dominican Republic ( Pedernales and Independencia Provinces) ( Fig. 19 ).