Hortipes cucurbita, BOSSELAERS & JOCQUÉ, 2000

BOSSELAERS, JAN & JOCQUÉ, RUDY, 2000, Hortipes, A Huge Genus Of Tiny Afrotropical Spiders (Araneae, Liocranidae), Bulletin of the American Museum of Natural History 2000 (256), pp. 4-4 : 4-

Hortipes cucurbita , new species Figures 12a–c , 13c ; Map 2

TYPES: Male holotype: litter in montane rain forest, elev. 1800–1850 m, Mwanihana Forest Reserve, Uzungwa mountains, Tanzania (28–29 September, 1984; N. Scharff) ( ZMUC). Paratypes: 1♀ from litter in montane rain forest, elev. 1000 m, same locality (1 August, 1982; M. Stoltze and N. Scharff) ( ZMUC) ; 16 from forest, elev. 1700 m, same locality (15 August, 1982; M. Stoltze and N. Scharff) ( ZMUC) ; 26 from pitfall trap, elev. 1650 m, same locality (18 August, 1982; M. Stoltze and N. Scharff) ( ZMUC) ; 16, 1♀ from litter, elev. 1650 m, same locality (18 August, 1982; M. Stoltze and N. Scharff) ( ZMUC) .

ETYMOLOGY: The species’ epithet refers to the gourd­like shape of the female ST.

DIAGNOSIS: Males of H. cucurbita are rec­ are similar to those of H. salticola , but in that species the RTA is slightly curved outward. Females can be recognized by the epigyne consisting of two circular holes, the very large gourd­shaped ST1 and the ID first running outward and then turning inward with a hairpin loop, which distinguishes the ID from that of the closely related H. exoptans .

MALE: Measurements. Total length 2.30; carapace 1.03 long, 0.84 wide; length of fe: I 0.92, II 0.97, III 0.76, IV 1.05. Leg spination. Fe: I rv 2; IV plt 0 rlt 0; ti: I, II vsp 6; mt: III plt 0 vt 0 rlt 0; IV plt 1 vt 1 rlt 1. Coloration. Carapace ochre­yellow, lighter around the fovea. Chelicerae yellow, legs pale yellow. Sternum lemon yellow. Abdomen pale pinkish yellow, no pattern. Palp. RTA simple, narrow at base and gradually tapered toward the middle from where it is parallel sided toward the sharp tip, which is strongly curved inward; cymbium fairly elongate, with shallow, narrow retrolateral concavity but without series of curved hairs; sperm duct fairly broad over entire course, slightly narrowed just before entering embolus; MA originating in frontal part of tegulum, fairly broad at base, curved over tegulum, strongly tapered in basal part, slender and sharply curved down in distal part, tip reaches base of RTA; embolus originating on prolateral part of tegulum, whiplike, fairly short, distal part appressed against MA (fig. 12a, b).

FEMALE: Measurements. Total length 4.00; carapace 1.62 long, 1.35 wide; length of fe: I 1.43, II 1.49, III 1.19, IV 1.70. Leg spination. Fe: I rv 2; IV plt 0 rlt 0; ti: I, II vsp 7; mt: III plt 0 vt 0 rlt 0; IV plt 1 vt 1– 2 rlt 1. Coloration. Carapace orange brown. Chelicerae light ochre, legs I and II orange brown, legs III and IV yellow. Sternum pale yellow with a brown margin. Abdomen peach, no pattern. Genitalia. Epigyne two circular holes coinciding with ID entrances and situated at anterior ends of ST1 (fig. 12c). Vulva: ID first running outward, then turning inward with hairpin loop and running in posterior direction; entrance associated with glandular structure connected with the lumen through a series of pores. Spermathecae gourd shaped, very large (fig. 13c).

2000 BOSSELAERS AND JOCQUÉ: HORTIPES 43

1650 m slightly differs from the female found at elev. 1000 m in having an epigyne with IDs that are not so clearly visible externally, in the lack of rlt spines on fe IV, and in having 1 vt spine instead of 2 on mtIV.

DISTRIBUTION: Mwanihana Forest Reserve, Uzungwa Mountains, Tanzania, in litter of montane rain forest between elev. 1000 and 1850 m.

Hortipes hesperoecius , new species

Figures 12d , 13f ; Map 1

TYPES: Female holotype: Mt. Aureol, Freetown, Sierra Leone N08°30' W13°15' (September 1976; D. Olu­Pitt) ( MRAC 148.476 ) .

ETYMOLOGY: The species’ epithet is a latinization of the ancient Greek words eơuep­ ιos, Western, and oικeos, indigenous. It means ‘‘living in the west’’ and highlights the fact that this species occurs more to the west than any other Hortipes species known.

DIAGNOSIS: Females can be recognized by the large, spherical ST2 and by the piriform ST1 gradually merging into the wide ID and containing a peculiar treelike structure.

MALE: Unknown.

FEMALE: Measurements. Total length 3.00; carapace 1.24 long, 1.03 wide; length of fe: I 0.97, II 1.00, III 0.81, IV 1.16. Leg spination. Fe: I rv 3; IV plt 0 rlt 0; ti: I, II vsp 7; mt: III plt 0 vt 0 rlt 0; IV plt 1 vt 2 rlt 1. Coloration. Carapace and legs orange brown, sternum and chelicerae yellow brown. Abdomen peach, no pattern, sparsely covered with thin, pointed grey setae. Genitalia. Vulva: ID entrances widely separated, first stretch of ID narrow and rather thickwalled, running inward, its entrance associated with glandular structure connected with the lumen through a series of pores and its end attached to the spherical ST2 and to second part of ID, which is wide and sclerotized and gradually merges into the piriform ST1. Spermathecae 1 has a peculiar, tree­like internal structure, probably a gland (figs. 12d; 13f).

DISTRIBUTION: Known only from the type locality.

Hortipes silvarum Ledoux and Emerit

Figures 12e–g , 13d ; Map 1

Figures

Map 1. Distribution of Hortipes species described in this publication. Hortipes baerti n, H. centralis h, H. hesperoecius O, H. machaeropolion D, H. orchatocnemis ^, H. oronesiotes Δ, H. penthesileia v, H. silvarum •, H. tarachodes V, H. terminator, and H. zombaensis.. Rectangles enclose regions (hatched) where high numbers of Hortipes species were found (number of species in parentheses). See detailed maps 2–5.

Map 2. Distribution of Hortipes species in Tanzania. Hortipes angariopsis z, H. bjorni v, H. castor •, H. creber h, H. cucurbita ^, H. delphinus., H. exoptans, H. fastigiensis #, H. narcissus Δ, H. leno, H. libidinosus * H. mulciber, H. ostiovolutus n, H. platnicki D, H. pollux O, H. salticola V, H. scharffi, and H. stoltzei y.

Fig. 12. a–c. Hortipes cucurbita, new species. a, b. Male left palp, ventral and retrolateral views. c. Epigyne. d. Hortipes hesperoecius, new species, epigyne. e–g. Hortipes silvarum. e, f. Male left palp, ventral and retrolateral views. g. Epigyne. h–j. Hortipes aurora, new species. h, i. Male left palp, ventral and retrolateral views. Arrow indicates insertion of MA on tegulum. j. Epigyne. k. Hortipes klumpkeae,

Fig. 13. a. Hortipes scharffi, new species, vulva, ventral view. b. Hortipes klumpkeae, new species, vulva, ventral view. c. Hortipes cucurbita, new species, vulva, ventral view. d. Hortipes silvarum, vulva, ventral view. e. Hortipes aurora, new species, vulva, ventral view. Arrow indicates ID entrance. f. Hortipes hesperoecius, new species, vulva, ventral view. Scale line: 0.1 mm.