Masteria lewisi
Creators: name: Passanha, Victor
name: Brescovit, Antonio D.
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Dipluridae
Masteria
Masteria lewisi

description: Masteria lewisi (Chickering, 1964)
(Figs 15, 30A, 33)
Accola lewisi Chickering, 1964: 177, figs 5–9.
Masteria lewisi: Raven, 1979: 625.
Types. JAMAICA. ♂ holotype, ♀ paratype, Red Hills Road (17°59’45.16”N; 76°57’18.39”W), Saint Catherine Parish, I. X.1957, A. M. Chickering leg., deposited in MCZ, examined.
Diagnosis. Males of M. lewisi are similar to those of M. colombiensis, M. downeyi, M. yacambu n. sp., M. amarumayu n. sp., M. mutum n. sp. and M. aguaruna n. sp. in the piriform palpal bulb, but differ in the short and straight embolus, with a basal projection (Fig. 15B). Females differ from those of other species with bilobed spermathecae in the similar size of the lobes and conspicuous glandular region (Fig. 15D–E).
Description. Male (Holotype). Color: Carapace in dorsal view yellowish, carapace in ventral view, legs and abdomen whitish. Total length 3.07. Carapace 1.44 long, 1.07 wide. Abdomen 1.63 long. Fovea 0.06. Clypeus 0.03. Ocular tubercle 0.14 long, 0.20 wide. Eyes: six, posterior row slightly recurved. AME absent, ALE 0.09, PME 0.05, PLE 0.07. Basal segment of chelicerae with 12 prolateral teeth, and seven smaller mesobasal teeth. Labium 0.22 long, 0.25 wide. Sternum 0.66 wide, 0.75 long. Palp: femur 0.85/ patella 0.57/ tibia 0.69/ tarsus 0.41/ total 2.52. Legs I: femur 1.29/ patella 0.75/ tibia 1.16/ metatarsus 0.79/ tarsus 0.69/ total 4.68; II: 0.97/ 0.57/ 0.69/ 0.63/ 0.47/ total 3.33; III: 0.94/ 0.38/ 0.57/ 0.69/ 0.50/ 3.08; IV: 1.35/ 0.63/ 0.97/ 0.97/ 0.85/ 4.77; Leg formula 4123; Spination: palp: patella v1-1, tibia p1; Legs I: femur p1, r1, patella v1-1, tibia v1-1 -1, p1, metatarsus v1-1; II: femur p1, r1, patella v1-1, tibia v1-1 -1, p1, metatarsus v1-1 -1, p1; III: femur p1, r1, patella v2, p1, r1-1, tibia d1-1, v1-1 -1-3ap, p1-1, r1-1, metatarsus d1-1, v2-3 ap, p1, r1-1-1; IV: femur p1, r1, patella v2, p1-1, r1, tibia d1-1, v1-1 - 3ap, p1-1, r1-1, metatarsus d1, v3-1 -3ap, p1-1-1, r1-1-1. Tibia I: P1 a strong and conical spur, P2 a strong spine with slightly projected base below P1 and P3, and P3 as two spines one projected base. Metatarsus I with flattened basal spine and basal depression associated withprolateral processes of tibia I (Figs 15C, 30A). Palpal tibia twice the length of the cymbium, with a ventral row of 7–8 elongate slender setae and 4–5 strong spines in medial portion (Fig. 15B). Cymbium as long as wide with four apical spines. Short embolus, one-third length of tegulum, small projection anterior to embolus (Fig. 15B). PLS: basal and medial, apical missing, 0.38, 0.32 long.
Female (Paratype). Color: Carapace in dorsal view orange, carapace in ventral view, legs and abdomen whitish. Total length 3.41. Carapace 1.44 long, 1.04 wide. Abdomen 1.97 long. Fovea 0.16. Clypeus 0.02. Ocular tubercle 0.13 long, 0.19 wide. Eyes: six, posterior row slightly recurved (Fig. 15A). AME absent, ALE 0.07, PME 0.04, PLE 0.06. Basal segment of chelicerae with 12 prolateral teeth, and eight smaller mesobasal teeth. Labium 0.19 long, 0.29 wide. Sternum 0.72 wide, 0.79 long. Palp: femur 0.79; Legs I: femur 1.07; II: femur 0.88; III: femur 0.85; IV: femur 1.16; Leg formula 4123 (inferred by length of femur). Spination: palp: femur p1, patella d1b, v1, p1, tibia d1b, v1-1 -1, p1, tarsus v1 b; Legs I: femur p1, patella v1, p1, tibia v1-1 -3ap, p1, metatarsus v1-1 -1; II: femur p1, patella v1, p1-1, tibia v1-1 -1-3ap, p1, metatarsus v1-1 -1; III: femur r1, patella v1-1, p1-1, r1, tibia d1-1, v1-1 -1-3ap, p1-1-1, r1-1, metatarsus d1-1, v1-1 -3ap, p1-1, r1; IV: femur p1, r1, patella v1-1, p1, r1, tibia d1-1, v1- 1 -1-3ap, p1-1, r1-1-1, metatarsus d1, v2-2 -3ap, p1-1-1, r1-1. Palpal claw with 15–20 teeth. Spermathecae bilobed, with similar lobes, short duct and globose apex, ectal lobe slightly more elevated than ental, glandular region with elongate, thin setae (Fig. 15D–E). PLS missing.
Distribution. Southern Jamaica (Fig. 33).
description: Published as part of Passanha, Victor & Brescovit, Antonio D., 2018, On the Neotropical spider Subfamily Masteriinae (Araneae, Dipluridae), pp. 1-73 in Zootaxa 4463 (1) on pages 27-29, DOI: 10.5281/zenodo.1441911