Hortipes horta, 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 horta , new species Figures 21g , 22e, f ; Map 3

TYPES: Female holotype: in humus in Lui­

76 BULLETIN AMERICAN MUSEUM OF NATURAL HISTORY NO. 256

leup) ( MRAC 092.411 ). Paratypes: 1♀ in humus in bamboo forest, elev. 2700 m, Itombwe , Mwenge territory, Lungwe lake, Kivu, Congo S03°03', E28°49' (August 1953; N. Leleup) ( MRAC) ; 1♀ near Talia source N, elev. 2500 m, Lubero, Kivu, Congo S00°10', E29°14' (9 October 1952; R.P.J. Celis) ( MRAC) ; 1♀ in humus layer, elev. 1750 m, Butembo , Kivu, Congo N00°09', E29°17' (February–March 1975; M. Lejeune) ( MRAC) .

ETYMOLOGY: The species name is a noun in apposition and a patronym in honor of the famous Jugendstil architect and designer Victor Horta (1861–1947). The elegant curves and angles of the ID of the present species remind some of the Horta designs (fig. 22e, f).

DIAGNOSIS: Females are close to those of H. hastatus but differ from the latter species by the bluntly triangular epigynal slit, the ID not passing along the dorsal side of ST1, and the ID entering ST1 posteriorly and from the inside instead of anteriorly and from the outside.

MALE: Unknown.

FEMALE: Measurements. Total length 2.97; carapace 1.22 long, 0.95 wide; length of fe: I 0.92, II 1.00, III 0.78, IV 1.11. Leg spination. Fe: I rv 2; IV plt 0 rlt 0; ti: I, II vsp 6; mt: III plt 1 vt 0 rlt 0; IV plt 1 vt 1 rlt 1. Coloration. Carapace, sternum, and legs yellow brown, chelicerae yellow. Abdomen pale yellow, no pattern. Genitalia. Epigyne a bluntly triangular slit (fig. 21g). Vulva: ID consisting of first, straight, weakly sclerotized stretch running in frontal direction, followed by wider, more heavily sclerotized part associated with gland. Wider part connected to ST1 by very complex stretch consisting of several circular and hairpin loops completely covering ventral side of ST1 (fig. 22e, f).

DISTRIBUTION: Kivu region, Congo, from Mwenga in the south to Butembo in the north.

Figures

Map 3. Distribution of Hortipes species in the Kivu region. Hortipes amphibolus D, H. auriga., H. aurora •, H. echo O, H. falcatus ^, H. hastatus, H. horta V, H. lejeunei Δ, and H. narcissus v.

Fig. 21. a, b. Hortipes bjorni, new species, male left palp, ventral and retrolateral views. Arrow indicates insertion of MA on tegulum. c. Hortipes amphibolus, new species, epigyne. d–f. Hortipes hastatus, new species. d, e. Male left palp, ventral and retrolateral views. f. Epigyne. g. Hortipes horta, new species, epigyne. h. Hortipes angariopsis, new species, epigyne. i–k. Hortipes falcatus, new species.

Fig. 22. a. Hortipes amphibolus, new species, vulva, ventral view. b. Hortipes delphinus, new species, vulva, ventral view. Arrow indicates ID entrance. c, d. Hortipes hastatus, new species. c. Vulva, ventral view. d. Vulva, schematic representation. e, f. Hortipes horta, new species. e. Vulva, ventral view. f. Vulva, schematic representation. Scale line: 0.1 mm.