Callitrichia convector, (TANASEVITCH, 2014), 2022

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), Zoological Journal of the Linnean Society 195, pp. 417-584 : 459

CALLITRICHIA CONVECTOR (TANASEVITCH, 2014) COMB. NOV.

( FIGS 19G , 22G , 23 , 24G )

Oedothorax convector Tanasevitch, 2014a: 408 , figs 64–71 (Dm).

Type material: Holotype: Thailand: Chiang Mai Province, Chomthong District, Doi Inthanon, 1780 m, ♂ 3.iii.1987, leg. P. Schwendinger (MHNG, examined).

Diagnosis:

Males: This species can re recognized by the shape of prosomal modification with the inter-AME-PME groove and PME lobe; it can be discriminated from Oedothorax s.s., Mitrager and other Callitrichia species by its palpal features including the presence of tibial retrolateral apophysis with setae (no setae in Mitrager ), the absence of tibial prolateral trichobothrium, the shape of paracymbium (distal clasp particularly long and slender), and the radix without tail piece.

Description:

Male (holotype, MHN): Total length: 1.68. Prosoma: 0.75 long, 0.55 wide, PME on frontal side of elevated region, short curved setae grouped at both sides of dorsal surface of prosomal elevation behind PME, inter-PME-PLE groove, three pairs of strong setae at groove lower margin, no setae inside groove ( Fig. 19G ). Eyes: AME-AME: 0.03, AME width: 0.05, AME-ALE: 0.01, ALE width: 0.05, ALE-PLE: 0.01, PLE width: 0.05, PLE-PME: 0.10, PME width: 0.05, PME-PME: 0.18. Clypeus: not hirsute, one sub-AME seta, particularly long. Chelicerae: stridulatory striae rows wide and evenly spaced ( Fig. 22G ). Sternum: 0.46 long, 0.5 wide. Legs: dorsal proximal macroseta on tibia IV 3.13 times diameter of tibia; Tm I: 0.81. Pedipalp: TPA narrow, slightly curved; TRA extended anteriorly, covering PC base from retrolateral view; PC long, distal-setae-bearing middle part enlarged, distal clasp slender and long ( Fig. 23A–C ); T without papillae; PT slender and long, with scale-like papillae; TS long, with small papillae; MSA absent; DSA short and wide ( Fig. 23H ); EM short, without papillae, not exceeding ARP ( Fig. 23E ); R without TP, scaly region distributed from ARP to VRP; LER present; E prolaterally spiral, between ARP and LER ( Fig. 23E, F, G ). Opisthosoma: dorsal pattern see Fig. 24G ; PMS with mAP, two AC; PLS with one FL, 3+ AC ( Fig. 23I–K ).

Female: Unknown

Distribution: Only known from the type locality in Thailand.

Habitat: No data.

Figures

Figure 19. Male prosomal morphology, lateral. A, ‘Oedothorax’ meghalaya Tanasevitch, 2015 (traced from photograph). B, ‘Oe.’ uncus Tanasevitch, 2015 (traced from photograph). C, Holmelgonia basalis Jocqué & Scharff, 1986 (Jocqué & Scharff, 1986, fig. 18). D, Callitrichia holmi (Wunderlich, 1978) (traced from photograph). E, Ca. picta (Caporiacco, 1949) (Holm 1962, fig. 58). F, Ca. gloriosa (Jocqué, 1984) (traced from photograph). G, Ca. convector Tanasevitch, 2014 (traced from photograph). H, Ca. sellafrontis Scharff, 1990 (traced from photograph). I, Ca. juguma (Scharff, 1990) (Scharff 1990a, fig. 164). J, Ca. uncata (Jocqué & Scharff, 1986) (Jocqué & Scharff, 1986, fig. 130). K, Ca. pilosa (Wunderlich, 1978) (traced from photograph). L, Ca. usitata (Jocqué & Scharff, 1986) (traced from photograph). M, Ca. legrandi (Jocqué, 1985) (Jocqué, 1985, fig. 21). N, Ca. macrophthalma (Locket & Russell-Smith, 1980) (traced from photograph). O, Ca. muscicola (Bosmans, 1988) (traced from photograph). P, Ca. latitibialis (Bosmans, 1988) (traced from photograph). Q, Ca. longiducta (Bosmans, 1988) (traced from photograph). R, Nasoona setifera (Tanasevitch, 1998) (Tanasevitch, 1998a, fig. 3). S, N. crucifera (Thorell, 1895) (Tu & Li, 2004, fig. 6A).

Figure 22. Male chelicerae, stridulatory striae on lateral side. A, ‘Oedothorax’ meghalaya. B, ‘Oe.’ uncus. C, Holmelgonia basalis. D, Callitrichia holmi. E, Ca. picta. F, Ca. gloriosa. G, Ca. convector. H, Ca. sellafrontis. I, Ca. juguma. J, Ca. uncata. K, Ca. pilosa. L, Ca. usitata. M, Ca. legrandi. N, Ca. macrophthalma. O, Ca. muscicola. P, Ca. latitibialis. Q, Ca. longiducta. R. Nasoona setifera. S, N. crucifera. Scale bars 0.05 mm.

Figure 23. Callitrichia convector (Tanasevitch, 2014). A–F, male right palp, images flipped horizontally. A, retrolateral view. B, prolateral view. C, dorsal view. D, ventral view. E, embolus and median membrane, dorsal view. F, radix, apical view. G, H, male left palp. G, apical view. H, retrolateral view. I, male spinnerets. J, male right posterior lateral spinneret. K, male left posterior lateral spinneret. Scale bar 0.1 mm.

Figure 24. Male opisthosoma, dorsal view. A, ‘Oedothorax’ meghalaya Tanasevitch, 2015. B, ‘Oe.’ uncus Tanasevitch, 2015. C, Holmelgonia basalis Jocqué & Scharff, 1986. D, Callitrichia holmi (Wunderlich, 1978). E, Ca. picta (Caporiacco, 1949). F, Ca. gloriosa (Jocqué, 1984). G, Ca. convector Tanasevitch, 2014. H, Ca. sellafrontis Scharff, 1990. I, Ca. juguma (Scharff, 1990). J, Ca. uncata (Jocqué & Scharff, 1986). K, Ca. pilosa (Wunderlich, 1978). L, Ca. usitata (Jocqué & Scharff, 1986). M, Ca. legrandi (Jocqué, 1985). N, Ca. macrophthalma (Locket & Russell-Smith, 1980). O, Ca. muscicola (Bosmans, 1988). P, Ca. latitibialis (Bosmans, 1988). Q, Ca. longiducta (Bosmans, 1988). R, Nasoona setifera (Tanasevitch, 1998). S, N. crucifera (Thorell, 1895). Scale bars 0.1 mm.