Callitrichia gloriosa Lin & Lopardo & Uhl 2022
Creators: name: Lin, Shou-Wang
name: Lopardo, Lara
name: Uhl, Gabriele
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Linyphiidae
Callitrichia
Callitrichia gloriosa

description: CALLITRICHIA GLORIOSA (JOCQUÉ, 1984) COMB. NOV.
(FIGS 19F, 22F, 24F, 25, 26E, F; SUPPORTING INFORMATION, FIG. S2D)
Typhistes gloriosus Jocqué, 1984: 136, figs 38–45 (Dmf). Examined material: South Africa, Eastern Cape Province, Kei Mouth. litter in costal forest, 3♂ 1♀ 12.xii.2002, Rec. Haddad C. (RMCA).
Diagnosis:
Males: This species, together with Ca. obtusifrons and Ca. trituberculata, can be distinguished from other Callitrichia, Mitrager and Oedothorax species by their unique palpal tibia prolateral apophysis morphology; this species can be further distinguished from Ca. trituberculata by its less externally protruded distalsetae-bearing part of paracymbium (extremely protruded in the latter species, see fig. 7D in Bosmans, 1988) and the position of the posterior median eyes close to the top of the PME lobe (at basal position directly behind the posterior lateral eyes in the latter species, see fig. 7A in Bosmans, 1988); and from Ca. obtusifrons by its less distal distribution of the retrolateral denticles on the palpal tibial prolateral apophysis (distally distributed in the latter species, see plate 25, fig. 4 in Miller, 1970).
Females: Similar to Ca. obtusifrons and Ca. trituberculata in the epigyne morphology, in which the central part of the dorsal plate is separated from the ventral plate by a transverse ridge [clearly visible in fig. 4, plate 26 in Miller (1970); slightly recognizable in fig. 7G in Bosmans (1988)], but can be distinguished from the latter two by the broad posterior margin of the dorsal plate, which is about as broad as the width of the spermathecae (Fig. 25G, H).
Description:
Male (RMCA): Total length: 2.82. Prosoma: 1.28 long, 0.92 wide, PME area largely elevated, with inter-AME- PME groove, interocular region anterior to inter-AME- PME groove with branched setae laterally oriented (Figs 19F, 26E, F). Eyes: AME-AME: 0.03, AME width: 0.06, AME-ALE: 0.1, ALE width: 0.1, ALE-PLE: 0, PLE width: 0.08, PLE-PME: 0.22, PME width: 0.09, PME- PME: 0.3. Clypeus: hirsute. Sternum: 0.69 long, 0.64 wide. Chelicerae: mastidia absent; stridulatory striae ridged, rows compressed and evenly spaced (Fig. 22F). Legs: dorsal proximal macroseta on tibia I, II, III and IV 0.56, 0.62, 1 and 2.59 times diameter of tibia, respectively; Tm I: 0.58. Pedipalp: TPA large, broad at base, narrow distally, pointed downward at tip, with several denticles on retrolateral side (Fig. 25A, C); PC base not visible from dorsal view, distal setae close to distal clasp, terminal part broad, distal clasp extended apically (Fig. 25A); T without papillae, PT truncated, apical part without papillae; TS short, thick (Fig. 25A, D); MSA small; DSA wide, truncated at tip (Fig. 25A); EM broad and flat, with few small papillae at distal margin, not exceeding ARP; ARP pointed; LER absent; VRP long; scaly papillae at upper half of area between ARP and VRP; TP round at tip; E short and stout, slightly retrolaterally curved, median part dorsally elevated, with small protuberances (Fig. 25E, F). Opisthosoma: dorsal pattern see Fig. 24F; PMS with mAP, two AC; PLS with triad, 3+ AC (Fig. 25I).
Female (RMCA): Total length: 2.28. Prosoma: 1,20 long, 0.86 wide. Eyes: AME-AME: 0.02, AME width: 0.05, AME-ALE: 0.08, ALE width: 0.09, ALE-PLE: 0, PLE width: 0.09, PLE-PME: 0.8, PME width: 0.08, PME-PME: 0.08. Clypeus: not hirsute, one sub- AME seta. Sternum: 0.7 long, 0.64 wide. Legs: dorsal proximal macroseta on tibia I, II, III and IV 1,96, 2.22, 2.9 and 3.26 times diameter of tibia, respectively; Tm I:. Epigyne: Clade 13 characteristic morphology (Fig. 25G, H). Opisthosoma dorsal pattern same as male; PMS one CY, one mAP, two AC; PLS with triad, two CY, 3+ AC.
Distribution: South Africa.
Remarks: The male tibial apophysis, embolic division and prosomal modification of this species resemble those of Ca. obtusifrons and Ca. trituberculata. The description of Bosmans (1988) concerning the absence of PME in Ca. trituberculata male contradicts his drawing of male prosoma, lateral view, where PME was depicted (fig. 7A in Bosmans, 1988). Following the results of our phylogenetic analysis, this species is transferred to Callitrichia, a placement also consistent with the morphological traits of the species.
description: Published as part of Lin, Shou-Wang, Lopardo, Lara & Uhl, Gabriele, 2022, Evolution of nuptial-gift-related male prosomal structures: taxonomic revision and cladistic analysis of the genus Oedothorax (Araneae: Linyphiidae: Erigoninae), pp. 417-584 in Zoological Journal of the Linnean Society 195 on pages 459-463, DOI: 10.1093/zoolinnean/zlab033, http://zenodo.org/record/6967774