CALLITRICHIA LATITIBIALIS (BOSMANS, 1988) COMB. NOV.

(FIGS 19P, 22P, 24P, 28; SUPPORTING INFORMATION, FIG. S2M)

Oedothorax latitibialis Bosmans, 1988: 17, fig. 5E–g (Dm).

Type material: Holotype: Cameroon: Bambouto Mountains, 2700 m, pitfall in montane grassland, 1♂ 17.i.1983 (RMCA 165.079, examined). Paratypes: 1♂, same data (RMCA 165.087, examined).

Diagnosis:

Males: This species can be identified by the lack of prosomal modification and the conspicuous, characteristic male palpal tibial apophyses, similar to that of Ca. longiducta, but with a different denticle morphology on tibial prolateral apophyses; the body size of this species is larger.

Description:

Male (holotype): Total length: 2.11. Prosoma: 1.09 long, 0.89 wide, unmodified (Fig. 19P). Eyes: AME-AME: 0.02, AME width: 0.06, AME-ALE: 0.03, ALE width: 0.09, ALE-PLE: 0.01, PLE width: 0.08, PLE-PME: 0.05, PME width: 0.09, PME-PME: 0.05. Chelicerae: mastidia absent; stridulatory striae rows widely and evenly spaced (Fig. 22P). Clypeus: not hirsute, one sub- AME seta. Sternum: 0.62 long, 0.61 wide. Legs: dorsal proximal macroseta on tibia I 1.61 times diameter of tibia; Tm I: 0.63. Pedipalp: patella prolateral proximal vertical macrosetae absent; tibia with slender, highly scletotized, pointed, dorsally situated apophysis bent retrolaterally at tip, base connected with TPA through thin plate; TPA wide, flat, apical ridge with peculiar denticles (Fig. 28C); PC large, base not visible from dorsal view, distal setae close to distal clasp, distalsetae-bearing area wide, distal clasp without striae, clasp extended apically; T without papillae, PT without papillae, distal rim thin and smooth at margin; TS short, without papillae; MSA inconspicuous; DSA tip straight; EM flat, anterior margin with small papillae, not exceeding ARP (Fig. 28A); ARP pointed; LER absent; VRP present, retrolaterally oriented; TP tip slender; E slightly retrolaterally spiral (Fig. 28B, D). Opisthosoma: single-coloured dark grey (Fig. 24P); PLS with triad, 3+ AC (Fig. 28E).

Male (paratype): Prosoma: 1.10 long, 0.88 wide. Legs: dorsal proximal macroseta on tibia II and III 1.70 and 2.31 times diameter of tibia, respectively; Tm I: 0.63.

Female: Unknown.

Distribution: Cameroon, only known from the type locality.

Habitat: Montane grasslands.

Remarks: According to the results of our phylogenetic analysis this species is transferred to Callitrichia, a placement also consistent with morphological traits of the species.