Callitrichia juguma Lin & Lopardo & Uhl 2022, COMB. NOV.
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 juguma

description: CALLITRICHIA JUGUMA (SCHARFF, 1990) COMB. NOV.
(FIGS 19I, 21, 22I, 24I; SUPPORTING INFORMATION, FIG. S2F)
Ophrynia juguma Scharff, 1990a: 66, figs 164–172 (Dmf).
Examined material: Tanzania: Uzungwa Mts., Iringa Region, Uzungwa Scarp Forest Reserve, 2♂ 2♀, leg. N, Scharff (ZMUC).
Diagnosis:
Males: Similar to Ca. rostrata, Ca. perspicuua and Ca. insulana in the shapes of the flat PME lobe and inter-AME-PME lobe, forming the narrow inter-AME- PME groove (figs 155, 164 and 173 in Scharff, 1990; fig. 116 in Jocqué & Scharff, 1986), which distinguishes them from other erigonines; this species can be further distinguished from the latter three species by the shape of the palpal tibial apophysis (Fig. 21A–C, in comparison to figs 157 and 177 in Scharff, 1990a; fig. 118 in Jocqué & Scharff, 1986).
Females: Epigyne morphology similar to other Callitrichia species, but can be distinguished by the particularly close distance between the spermathecae (Fig. 21E, F, in comparison to e.g. Fig. 18G, fig. 115 in Jocqué & Scharff, 1986, and fig. 163 in Scharff, 1990a).
Description:
Male (ZMUC): Total length: 2.08. Prosoma: 0.89 long, 0.74 wide, with a narrow and small PME lobe; posterior part with fine, long setae over PME; frontal part ends in a ridge, pointing up and forward, curved inward in the middle, with transversal slit at the peak (Fig. 19I). AME-AME: 0.04, AME width: 0.04, AME- ALE: 0.03, ALE width: 0.07, ALE-PLE: 0.07, PLE width: 0.06, PLE-PME: 0.07, PME width: 0.04, PME- PME: 0.07. Clypeus: not hirsute, one sub-AME seta. Sternum: 0.51 long, 0.49 wide. Chelicerae: mastidia absent; stridulatory striae ridged, rows compressed and evenly spaced (Fig. 22I). Legs: metatarsi and tarsi of legs I and II with perpendicular lateral setae, long and numerous; dorsal proximal macroseta on tibia I, II, III and IV 1.44, 1.57, 2.10 and 2.96 times diameter of tibia, respectively;Tm I: 0.79. Pedipalp: patella prolateral proximal vertical macrosetae absent; tibia with one prolateral, two retrolateral trichobothria; TPA large, broadly rounded, prolateral side straight, retrolateral side with small, round, scaly distal process (Fig. 21C); PC base not visible from dorsal view, distal setae close to distal clasp, distal-setaebearing area wide, distal clasp extended apically (Fig. 21A); T without papillae, PT truncated, apical part with papillae; TS absent (Fig. 21A); MSA present; DSA wide, median part of tip concave (Fig. 21A); EM broad and flat, without papillae, exceeding ARP; ARP thick, bifid; LER absent; VRP short, with papillae extended to medan part of R; TP long, round at tip; E short and stout, slightly retrolaterally curved (Fig. 21B, C). Opisthosoma: dorsal pattern see Fig. 24I; PMS without spigots; PLS with one FL (Fig. 21G).
Female (ZMUC): Total length: 1.87. Prosoma: 0.79 long, 0.66 wide. AME-AME: 0.03, AME width: 0.04, AME-ALE: 0.02, ALE width: 0.07, ALE-PLE: 0.01, PLE width: 0.06, PLE-PME: 0.04, PME width: 0.05, PME-PME: 0.05. Clypeus: not hirsute, one sub-AME seta. Sternum: 0.51 long, 0.49 wide. Legs: dorsal proximal macroseta on tibia I, II, III and IV 2.88, 2.76, 2.67 and 3.21 times diameter of tibia, respectively; Tm I: 0.88. Epigyne of Clade 13 characteristic morphology, borders between ventral and dorsal plates converging anteriorly and posteriorly, CO posterior to spermathecae (Fig. 21E, F). Opisthosoma: dorsal pattern as male; spigots as in male, PMS with one CY; PLS with two CY (Fig. 21H).
Remarks: Following the results of our phylogenetic analysis, this species is transferred to Callitrichia, a placement also consistent with 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 466-467, DOI: 10.1093/zoolinnean/zlab033, http://zenodo.org/record/6967774