Holmelgonia basalis Jocque & Scharff 1986
- Dataset
- Evolution of nuptial-gift-related male prosomal structures: taxonomic revision and cladistic analysis of the genus Oedothorax (Araneae: Linyphiidae: Erigoninae)
- Rank
- SPECIES
Classification
- kingdom
- Animalia
- phylum
- Arthropoda
- class
- Arachnida
- order
- Araneae
- family
- Linyphiidae
- genus
- Holmelgonia
- species
- Holmelgonia basalis
description
(FIGS 19 C, 22 C, 24 C, 36; SUPPORTING INFORMATION, FIG. S 2 A)
materials_examined
Examined material: Tanzania, Uzungwa Mts., Mwanihana Forest above Sanje River, 1700 m, 1 ♂ 1 ♀ 15. viii. 1982, leg. M, Stoltze & N, Scharff (ZMUC); same locality, 1800 m, pitfall trap, 1 ♂ 18. viii. 1982, leg. M, Stoltze & N, Scharff (ZMUC); same locality, 1800 m, litter, 1 ♀ 15. viii. 1982, leg. M, Stoltze & N, Scharff (ZMUC). Description: Male (ZMUC, 15. viii. 1982): Total length: 1.72. Prosoma: 0.79 long, 0.61 wide, without modification (Fig. 19 C). Eyes: AME-AME: 0.02, AME width: 0.04, AME-ALE: 0.02, ALE width: 0.08, ALE-PLE: 0, PLE width: 0.09, PLE-PME: 0.08, PME width: 0.02, PME- PME: 0.03. Clypeus: not hirsute, one sub-AME seta. Sternum: 0.44 long, 0.48 wide. Chelicerae: mastidia absent; stridulatory striae ridged, rows widely and evenly spaced (Fig. 22 C). Legs: tibia chaetotaxy 2 - 2 - 1 - 1; dorsal proximal macroseta on tibia II, III and IV 2.24, 4.1 and 3.85 times diameter of tibia, respectively; Tm I: 0.60. All metatarsi with trichobothrium. Pedipalp: patella prolateral proximal vertical macrosetae absent; tibia with one prolateral, two retrolateral trichobothria; TPA large, base distant from C base, distal part as wide as base, with two protuberances at tip, each with a seta below (Fig. 36 A, C); PC base not visible from dorsal view, distal setae close to distal clasp, distal-setae-bearing area wide, distal clasp without striae, clasp extended apically (Fig. 36 A); T without papillae, PT apical part with long papillae; TS shot, slender (Fig. 36 D); MSA present; DSA wide, truncated at tip (Fig. 36 A); EM broad, flat, without papillae, not exceeding ARP; ARP pointed; LER absent; central embolar apophysis present; VRP long, with papillae close to tip; TP long, round at tip; E short and slender, slightly retrolaterally curved (Fig. 36 B). Opisthosoma: dorsal pattern see Fig. 24 C; PMS with mAP, AC absent; PLS with triad, one AC (Fig. 36 G). Female: Total length: 2.04. Prosoma: 0.88 long, 0.62 wide. Eyes: AME-AME: 0.02, AME width: 0.04, AME-ALE: 0.02, ALE width: 0.08, ALE-PLE: 0, PLE width: 0.07, PLE-PME: 0.04, PME width: 0.07, PME- PME: 0.03. Clypeus: not hirsute, one sub-AME seta. Sternum: 0.5 long, 0.51 wide. Legs: tibia chaetotaxy 2 - 2 - 1 - 1; dorsal proximal macroseta on tibia I 2.85 times diameter of tibia, respectively; Tm I: 0.60. Epigyne: Clade 13 characteristic morphology, CO close to dorsal plate posterior margin (Fig. 36 E, F). Opisthosoma dorsal pattern same as male; PMS with mAP, CY; PLS with triad, one AC, two CY (Fig. 36 H, I). Distribution: Tanzania.