Hortipes scharffi, 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 scharffi , new species Figures 10i–k , 13a ; Map 2

TYPES: Male holotype in pitfall trap in montane rain forest, elev. 1900 m, Kigogo Forest Reserve , Mufindi, Iringa region, Uzungwa Mountains, Tanzania (7–15 October, 1984; N. Scharff) ( ZMUC). Paratype: 1♀ together with holotype .

ETYMOLOGY: The species name is a patronym in honor of Dr. N. Scharff, who collected the type specimens.

DIAGNOSIS: Males of H. scharffi are recognized by the very long and slender RTA, strongly curved backward. Males are similar to those of H. cucurbita , but in that species the RTA is not recurved but simply curved down. Females can be recognized by the gourd­shaped ST1 and the ID having a hairpin loop associated with a glandular structure and making a U­loop in a ventral direction before connecting to ST1.

2000 BOSSELAERS AND JOCQUÉ: HORTIPES 41

I 1.03, II 1.08, III 0.84, IV 1.22. 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 orange brown, chelicerae orange. Legs I and II orange brown, legs III and IV orange yellow. Sternum orange,

at base and suddenly tapered beyond base, thence gradually tapered toward tip; 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

42 BULLETIN AMERICAN MUSEUM OF NATURAL HISTORY NO. 256

over tegulum, strongly tapered in basal part, slender and sharply curved down in distal part, tip almost reaches base of RTA; embolus originating on prolateral part of tegulum, whiplike, fairly short, distal part appressed against MA (fig. 10i, j).

FEMALE: Measurements. Total length 3.65; carapace 1.57 long, 1.32 wide. Length of fe: I 1.38, II 1.43, III 1.13, IV 1.59. 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 rlt 1. Coloration. Carapace orange brown, chelicerae orange. Legs I and II orange brown, legs III and IV orange yellow. Sternum orange, abdomen yellowish white, without pattern. Eyes. Eyes all ringed with black, rather small, especially the PME. Genitalia. Epigyne a shallow bilobed depression enclosing ID entrances (fig. 10k). Vulva: ID first running outward in a hemicircular bend, then turning inward with hairpin loop and running in posterior direction, making Uloop in ventral direction before connecting to ST1. Hairpin loop of ID associated with glandular structure connected with the lumen through a series of pores. Spermathecae gourd shaped, very large (fig. 13a).

DISTRIBUTION: Known only from the type locality.

Figures

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. 10. a–c. Hortipes fastigiensis, new species. a, b. Male left palp, ventral and retrolateral views. c. Epigyne. d–f. Hortipes ostiovolutus, new species. d, e. Male right palp, ventral and retrolateral views. f. Epigyne. g, h. Hortipes exoptans, new species, male right palp, ventral and retrolateral views. i–k.

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.