Hortipes fortipes, 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 fortipes , new species Figure 30c, d ; Map 5

TYPES: Male holotype in pitfall trap in evergreen forest, Micomeseng, Equatorial Guinea (13–17 July, 1989; M. Alderweireldt) ( MRAC 170.096 ) .

ETYMOLOGY: The species is called fortipes because of the very strong ventral spines on the ti and mt of legs I and II.

DIAGNOSIS: Males of H. fortipes can be distinguished from those of the the closely related H. architelones by the tooth on the MA, which is more than 2 Χ as long as the diameter of the apophysis and curved forward instead of triangular, and by the larger, stronger ventral spines on legs I and II.

MALE: Measurements. Total length 2.03; carapace 1.08 long, 0.89 wide; length of fe: I 0.97, II 1.05, III 0.78, IV 1.08. Leg spination. Fe: I rv 2; IV plt 0 rlt 0; ti: I, II vsp 6; mt: III plt 1 vt 1 rlt 0; IV plt 1 vt 2 rlt 1. Coloration. Carapace orange yellow, legs, chelicerae, and sternum pale yellow. Abdo­ Palp. Tibia with large, solid RTA, projecting upward and forward with bifid extremity, both tips short and blunt; cymbium broad, with deep bend provided with series of long curved setae; tegulum with subcircular swelling at base of embolus; sperm duct with wide basal part and thin distal part with deep, shallow turn just in front of embolus; MA solid, gradually tapering from thick base to fairly blunt tip, curved down, with large blunt tooth in center of its curve; embolus long, whiplike, looped over 540° (fig. 30c, d).

FEMALE: Unknown.

DISTRIBUTION: Known only from the type locality.

Hortipes bosmansi , new species Figures 32d–f, 33c, d; Map 5

TYPES: Male holotype: litter of isolated shrubs in grassland, 2150 m, Manengouba massif, Cameroon (25 March 1983; R. Bosmans) ( MRAC 207.360 ). Paratypes: 16 together with holotype ( MRAC; now in AMNH) ; 16, 3♀, one juvenile from the thick litter layer of a mountain rain forest, 2250 m, Manengouba massif, Cameroon (25 March 1983; R. Bosmans) ( MRAC) ; 2♀ in pitfall trap in rain forest, 1300 m, Mt. Koupe´ , Cameroon (31 January 1983; R. Bosmans) ( MRAC) ; 2♀ from mist forest, 1425 m, Mt. Cameroon, S side, Cameroon N04°06'28″, E09°07'10″ (26–28 January 1992; Coddington, Griswold, Larcher and Hormiga) ( CAS) .

ETYMOLOGY: The species is named in hon­ or of Dr. Rop Bosmans, who collected the holotype and several paratypes.

DIAGNOSIS: Males of H. bosmansi are recognized by the male palpal ti having a large RTA with a sharp, inward­curved tip and the MA having a long thick basis with two short appendages and slender twisted distal part. Females can be recognized by the epigyne having a frontal hooded scape and by the very thick walled first stretches of the IDs, connected with each other by a frontal sclerotized ridge.

MALE: Measurements. Total length 2.86; carapace 1.35 long, 1.11 wide; length of fe: I 1.05, II 1.16, III 0.95, IV 1.22. Leg spination. Fe: I rv 2; IV plt 0 rlt 0; ti: I, II vsp

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erae, sternum, and legs yellow. Abdomen pale pink, no pattern. Palp. Only a blunt trace of a femoral apophysis (fig. 32d, e). Tibia with large, broad RTA, prolaterally concave and with sharp, inward­curved tip; cymbium with large retrolateral bend with regular series of long setae; tegulum with retrolateral swelling at base of embolus; sperm duct with wide basal part and thin distal part with deep turn; MA with long, thick base, provided with two short appendages and long, slender, and twisted distal part, strongly curved in anticlockwise direction; embolus long, whiplike, looped over 540°.

FEMALE: Measurements. Total length 2.65; carapace 1.38 long, 1.05 wide; length of fe: I 1.13, II 1.22, III 0.92, IV 1.30. Leg spination. Fe: I rv 3–5; IV plt 1 rlt 1; ti: I, II vsp 6; mt: III plt 1 vt 1 rlt 1; IV plt 1 vt 2 rlt 1. Coloration. Carapace greyish yellow. Chelicerae, sternum, and legs yellow. Abdomen pale yellow, no pattern, covered with rather thick, pointed, light grey setae. Genitalia. Epigyne a shallow depression with hooded scape in front, enclosing dark brown, heavily sclerotized ID entrances (fig. 32f). Vulva: first stretch of IDs wide and very thick walled, associated with gland, entrances connected with each other by a frontal sclerotized ridge. First stretch of ID running outward in posterior direction and connected to ST1 by two lateral circular loops, diagonal stretch running inward, hairpin loop close to symmetry axis, and final circular loop connected to ST1 itself (fig. 33c, d).

OTHER MATERIAL EXAMINED: Mt. Cameroon, Cameroon:16, 6 juveniles hand captured in well­developed mountain rain forest with tree fern undergrowth, elev. 1700 m (March 1983; R. Bosmans) ( MRAC) ; 1 female hand captured in strongly degraded mountain rain forest, dominated by elephant grass, elev. 1300 m (March 1981; R. Bosmans) ( MRAC) ; 1♀ hand captured in open mountain rain forest with maccabo fields, elev. 1400 m (March 1981; R. Bosmans) ( MRAC), 1♀, pitfall trap in well­developed mountain rain forest with tree fern undergrowth, elev. 1500 m (March 1981; R. Bosmans) ( MRAC) .

DISTRIBUTION:, Mt. Cameroon, Mt. Koupé

Hortipes sceptrum , new species Figures 32a–c, 33e, f; Map 5

TYPES: Male holotype: pitfall trap, 1600 m, Bali , Bafuchu Mbu , Shum Laka , Cameroon N05°51', E10°05' (December 1991 – February 1992; H. Doutrelepont) ( MRAC 174.868 ). Paratypes: 96, three juveniles from forest, 2150 m, near Lake Oku, Mt. Oku, Cameroon N06°12', E10°27' (7–13 February 1992; C. Griswold, S. Larcher, N. Scharff and C. Wanzie) ( CAS) ; 16, 1♀ from 2219 m, same locality (3 March 1983; R. Bosmans) ( MRAC; now in AMNH) ; 1♀ in pitfall trap at 2219 m, same locality (3 March 1983; R. Bosmans) ( MRAC) ; 16 in pitfall trap, 2350 m, same locality (8–15 March 1983; R. Bosmans) ( MRAC) ; 1♀ in pitfall trap close to stream in mountainous savannah with sparse trees and shrubs, 2290 m, Mt. Bamboutos , Cameroon (24 January1983; R. Bosmans) ( MRAC) .

ETYMOLOGY: The species’ epithet is a noun in apposition that refers to the scepterlike appearance of the male palp.

DIAGNOSIS: Males of H. sceptrum are easily recognized by the large palpal femoral apophysis with slightly curved tip and the twisted RTA. Females can be recognized by the epigyne being a large hooded scape and by the last loop of the ID laterally encircling ST1 on the external side and entering it dorsally.

MALE: Measurements. Total length 2.48; carapace 1.16 long, 0.92 wide; length of fe: I 0.95, II 1.00, III 0.81, IV 1.11. Leg spination. Fe: I rv 2; IV plt 0 rlt 0; ti: I, II vsp 6; mt: III plt 1 vt 1 rlt 1; IV plt 1 vt 2 rlt 1. Coloration. Carapace orange brown, chelicerae, sternum, and legs yellow brown. Abdomen pink, with a dorso­median longitudinal white line on the anterior half that tapers gradually into a point posteriorly. Palp. with large lateral apophysis with slightly curved, sharp tip. Tibia with large, broad, strongly sclerotized twisted RTA, prolaterally concave, and with finely serrated dorsal margin; as seen from the ventrolateral side the apophysis may give the impression of being double but the central part is transparent. Cymbium with large retrolateral bend with series of

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direction toward distal part of curve; sperm duct with wide basal part and thin distal part with deep turn and sinuous course; MA with long, thick base without appendages, suddenly tapered into slender distal part with shape of short hook; embolus long, whiplike, looped over slightly more than 540° (fig. 32a, b).

FEMALE: Measurements. Total length 3.62; carapace 1.40 long, 1.13 wide; length of fe: I 1.13, II 1.16, III 0.95, IV 1.24. Leg spination. Fe: I rv 3; IV plt 1 rlt 1; ti: I, II vsp 6; mt: III plt 1 vt 1 rlt 1; IV plt 1 vt 2 rlt 1. Coloration. Carapace yellow brown, with eight darker, radiating striae. Chelicerae and sternum yellow, legs yellow brown. Abdomen light pink, no pattern. Genitalia. Epigyne a large hooded scape opening toward posterior side; entrances of IDs and globular ST visible in the wide entrance (fig. 32c). First stretch of ID with complex and heavily sclerotized entrance, wide and thick walled, associated with piriform gland, running outward and connected to ST1 through complex series of consecutive circular loops that pass along dorsal side of ST1; last loop laterally encircling ST1 on external side and entering it dorsally (fig. 33e, f).

OTHER MATERIAL EXAMINED: 1♀, elev. 2650 m, Mt. Oku , Cameroon (8 March 1983; R. Bosmans) ( MRAC) .

VARIABILITY: The exact course of the coils and loops of ID is somewhat variable.

DISTRIBUTION:, Mt. Bamboutos, Bali, Mt. Oku, Cameroon, elev. 1600–2650 m.

Figures

Map 5. Distribution of Hortipes species in Cameroon. Hortipes abucoletus *, H. alderweireldti, H. anansiodatus •, H. architelones Δ, H. bosmansi v, H. calliblepharus ^, H. chrysothemis n, H. depravator, H. fortipes., H. hormigricola V, H. puylaerti D, H. robertus h, and H. sceptrum O.

Fig. 30. a, b. Hortipes alderweireldti, new species, male left palp, ventral and retrolateral views. c, d. Hortipes fortipes, new species, male left palp, ventral and retrolateral views. e, f. Hortipes calliblepharus, new species, male left palp, ventral and retrolateral views. Scale line: 0.25 mm.