Neostasina mammee, Rheims & Alayón, 2016

Rheims, Cristina Anne & Alayón, Giraldo, 2016, Neostasina gen. nov., a new genus of huntsman spiders from the Neotropical region (Araneae, Sparassidae, Sparianthinae), Zootaxa 4079 (3), pp. 301-344 : 331-332

Neostasina mammee sp. nov.

Figs 106−112 , Map 5

Type material: Holotype: ♂, Jamaica, Saint Thomas Parish, Mammee Bay, Port Morant [17°53’N, 76°19’W], 14 October 1957, A.M. Chickering leg. ( MCZ 69725).

Paratypes: 1♂, 1♀, 1 juvenile, Jamaica, Saint Thomas Parish, Lysson [17°52’N, 76°20’W], 28 June 1954, A.M. Chickering leg. ( MCZ 69715).

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

Diagnosis. Males of N. mammee sp. nov. resemble those of N. bermudezi sp. nov., N. croix sp. nov. and N. ouali sp. nov. ( Figs 27 , 50 , 124 ) in the TBE bifid, with two elongate branches ( Fig. 109 ). They are distinguished from these species by the vRTA pointed and as large as dRTA and by the triangular eRTA ( Figs 107−108 ). Females resemble those of N. maroon sp. nov. ( Fig. 117 ) by the median septum pentagonal with posterior margin rounded and strongly procurved ( Fig. 110 ). They are distinguished from this species by the anterior rim straight and covering the anterior margin of the median septum ( Fig. 110 ). They are further distinguished from the other species of the genus by the copulatory ducts thick and anteriad and by the glandular projections inconspicuous ( Fig. 111 ).

Description. Male (MCZ 69715, paratype): Prosoma brown with very thin dark brown lines. Fovea dark brown. Eye borders black. Chelicerae brown. Pedipalps pale brown. Legs brown, ventrally mottled with brown spots. Sternum orange with pale brown margins. Endites pale brown, distally cream colored. Labium pale brown, with dark brown base. Opisthosoma cream colored; dorsally mottled with gray spots on anterior half and with gray chevron-like marks on posterior half; ventrally mottled with gray spots. Total length 8.1. Prosoma: 3.7 long, 3.3 wide. Opisthosoma: 4.4 long, 2.4 wide. Eyes: diameters: 0.26, 0.22, 0.16, 0.22; interdistances: 0.16, 0.08, 0.32, 0.24, 0.12, 0.04. Legs (2143): I: 14.2 (3.9, 2.0, 3.8, 3.7, 0.8); II: 14.6 (4.1, 2.0, 3.8, 3.8, 0.9); III: 11.3 (3.5, 1.6, 2.6, 2.9, 0.7); IV: 13.3 (3.8, 1.5, 3.1, 4.0, 0.9). Palp: VTA small, triangular, slightly retrolaterally displaced; dRTA roughly triangular in retrolateral view; vRTA conical; tegular protrusion arising from tegulum at 5:30 o’clock position; median apophysis arising from tegulum at 3 o’clock position; conductor distally widened; TBC roughly squared, as wide as long, distally wider than at base; embolus with laminar and twisted tip, arising from tegulum at 8:30 o’clock position; TBE with main branch longer than secondary branch ( Figs 106−109 ).

Female (MCZ 69715, paratype): Coloration pattern as in male but darker. Total length 11.0. Prosoma: 4.6 long, 4.2 wide. Opisthosoma: 6.1 long, 3.9 wide. Eyes: diameters: 0.28, 0.22, 0.18, 0.22; interdistances: 0.18, 0.16, 0.40, 0.36, 0.22, 0.10. Legs (2143): I: 14.5 (4.2, 2.5, 3.6, 3.4, 0.8); II: 14.8 (4.4, 2.5, 3.7, 3.4, 0.8); III: 12.2 (3.6, 2.1, 2.7, 3.1, 0.7); IV: 14.3 (4.1, 1.8, 3.3, 4.1, 1.0). Epigyne: epigynal field roughly rectangular, slightly longer than wide; anterior rim entire; median septum wider than long ( Fig. 110 ). Vulva: spermathecae packed within sclerotized structure with one rounded part opening from copulatory ducts and one long cylindrical part opening into fertilization ducts; internal ducts indistinguishable ( Figs 111−112 ).

Variation. Males (n = 2): total length 5.7−9.3; prosoma length 3.0−4.2; femur I length 3.1−3.7.

Distribution. Known from Saint Thomas Parish in Jamaica (Map 5).

Figures

FIGURES 106 − 112. Neostasina mammee sp. nov. 86 − 89 Male, left palp (106 prolateral, 107 ventral, 108 retrolateral, 109 detail of embolus and TBE); 110 − 112 Female (110 epigyne, 111 vulva, 112 schematic course of internal duct system). CD = copulatory duct; dRTA = dorsal branch of RTA; E = embolus; eRTA = extra retrolateral tibial apophysis; FD = fertilization duct; pt = tegular protrusion; TBC = tegular projection at base of conductor; TBE = tegular projection at base of embolus; vRTA = ventral branch of RTA; VTA = ventral tibial apophysis. Scale lines: 1 mm.

FIGURES 26 − 32. Neostasina bermudezi sp. nov. 26 − 29 Male, left palp (26 prolateral, 27 ventral, 28 retrolateral, 29 detail of embolus and TBE); 30 − 32 Female (30 epigyne, 31 vulva, 32 schematic course of internal duct system). am = anterior margin of median septum; CD = copulatory duct; dRTA = dorsal branch of RTA; E = embolus; FD = fertilization duct; GP = glandular projection; mb = main branch of TBE; pm = posterior margin of median septum; sb = secondary branch of TBE; TBC = tegular projection at base of conductor; TBE = tegular projection at base of embolus; vRTA = ventral branch of RTA; VTA = ventral tibial apophysis. Scale lines: 1 mm.

FIGURES 46 − 52. 46 − 48 Neostasina cachote sp. nov., female (46 epigyne, 47 vulva; 48 schematic course of internal duct system); 49 − 52 Neostasina croix sp. nov., male, left palp (49 prolateral, 50 ventral, 51 retrolateral, 52 detail of embolus and TBE). al = anteriad loop of spermathecae; CD = copulatory duct; dRTA = dorsal branch of RTA; E = embolus; FD = fertilization duct; GP = glandular projection; mag = anterior groove of median septum; TBC = tegular projection at base of conductor; TBE = tegular projection at base of embolus; vRTA = ventral branch of RTA; VTA = ventral tibial apophysis. Scale lines: 1 mm.

FIGURES 123 − 128. Neostasina oualie sp. nov. 123 − 125 Male, left palp (123 prolateral, 124 ventral, 125 retrolateral); 126 − 128 Female (126 epigyne, 127 vulva, 128 schematic course of internal duct system). at = anterior twist of spermathecae; CD = copulatory duct; dRTA = dorsal branch of RTA; eRTA = extra retrolateral tibial apophysis; FD = fertilization duct; GP = glandular projection; TBE = tegular projection at base of embolus; vRTA = ventral branch of RTA; VTA = ventral tibial apophysis. Scale lines: 1 mm.

FIGURES 113 − 119. Neostasina maroon sp. nov. 114 − 116 Male, left palp (113 prolateral, 114 ventral, 115 retrolateral, 116 detail of embolus and TBE); 117 − 119 Female (117 epigyne, 118 vulva, 119 schematic course of internal duct system). am = anterior margin of median septum; ar = anterior rim of epigyne; CD copulatory duct; dRTA = dorsal branch of RTA; E = embolus; ek = dorsal keel of embolus; eRTA = extra retrolateral tibial apophysis; FD = fertilization duct; GP = glandular projection; pt = tegular protrusion; TBC = tegular projection at base of conductor; TBE = tegular projection at base of embolus; vRTA = ventral branch of RTA; VTA = ventral tibial apophysis. Scale lines: 1 mm.