Neostasina guanaboa Rheims & Alayón 2016, sp. nov.

Neostasina guanaboa sp. nov.

Figs 64−67, Map 5

Type material: Holotype: ♂, Jamaica, Saint Catherine Parish, Guanaboa Vale [18°02’N, 77°44’W], 4 December 1957, A.M. Chickering leg. (MCZ 69733).

Paratypes: 1♂, 1 juvenile, from the same vial as holotype (MCZ 69733).

Etymology. The specific name is a noun and refers to the type locality.

Diagnosis. Males of N. guanaboa sp. nov. resemble those of N. liguanea sp. nov. and N. maroon sp. nov. (Figs 85, 116) in the embolus with subdistal, dorsal keel. They are distinguished from these species by the triangular and pointed embolic keel (Fig. 67) (elongate and rounded in the other species). They are further distinguished from the other species of the genus by the dRTA almost three times longer than wide, roughly rectangular and medially bent in retrolateral view, and vRTA laminar, roughly round, with ventral margin bifid in retrolateral view (Fig. 66). Females are unknown.

Description. Male (MCZ 69733, holotype): Prosoma orange with thin brown lines along thoracic striae, lateral margins of cephalic region and extending posteriorly from PME. Fovea brown. Eye borders black. Chelicerae pale orange. Pedipalps pale orange. Legs orange, with femora ventrally mottled with few brown spots. Sternum yellow with orange margins. Endites pale yellow. Labium brown, distally pale yellow. Opisthosoma cream colored; dorsally with gray pattern of irregular marks on anterior half and chevron like marks on posterior half; ventrally with few scattered gray spots. Total length 6.2. Prosoma: 3.1 long, 2.6 wide. Opisthosoma: 2.9 long, 2.0 wide. Eyes: diameters: 0.20, 0.18, 0.10, 0.16; interdistances: 0.14, 0.08, 0.28, 0.22, 0.18, 0.08. Legs (2143): I: 12.0 (3.2, 1.6, 3.2, 3.2, 0.8); II: 12.4 (3.5, 1.5, 2.4, 3.2, 0.8); III: 9.7 (3.0, 1.2, 2.3, 2.5, 0.7); IV: 11.8 (3.4, 1.2, 2.7, 3.6, 0.9). Palp: VTA triangular, retrolaterally displaced; eRTA absent; tegular protrusion arising from tegulum at 6 o’clock position; median apophysis arising from tegulum at 3 o’clock position; conductor slightly widened distally; TBC rectangular, two times longer than wide; embolus arising from tegulum at 9 o’clock position; TBE bifid, main branch with dorsal groove, flanked by elongate keel to accommodate the embolus and secondary branch short and pointed (Figs 64−67).

Female: unknown.

Variation. Males (n = 2): total length 6.2−8.1; prosoma length 3.1−3.6; femur I length 3.2−3.8.

Distribution. Only known from the type locality in Jamaica (Map 5).

Remarks. In this paper we describe four new species from Jamaica known from only one sex. Neostasina guanaboa sp. nov. and N. gunboat sp. nov. are known solely from males while N. jamaicana sp. nov. and N. lucea sp. nov. are known solely from females. All four species are of similar size and show similar coloration patterns, so there is no way to match the sexes with confidence or to be sure that they aren’t indeed four new species. Thus, we prefer to maintain them as separate species until further evidence becomes available.