Holmelgonia disconveniens, sp. nov.
Creators: name: Benoît Nzigidahera
name: Rudy Jocqué
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Linyphiidae
Holmelgonia
Holmelgonia disconveniens

description: Holmelgonia disconveniens sp. nov.
urn:lsid:zoobank.org:act:2787FB55-2335-4C64-BFB8-ABC0825A7F56
Figs 2-3, 7, 10, 23-25, 35-38
Diagnosis
The male is characterized by the triangular dorsal tibial apophysis, with a tooth at the tip and sinuous prolateral margin, by the fairly large, sharp, sclerotized prolateral apophysis, and by the paracymbium without hairs, its distal arm with a well delimited knob.
Etymology
The specific name ‘ disconveniens’ refers to the contrasting tinge of dark body and pale legs.
Material examined
Holotype
BURUNDI: ♂, Parc National de la Kibira, Rwegura, Mt Musumba, 2.86435° S, 29.49540° E, site 1, tea plantation, 10 Sep. 2008, 2100 m, pitfalls, B. Nzigidahera coll. (MRAC 229928).
Paratypes
BURUNDI: 1 ♂, 10 Sep. 2008, same data as for holotype (MRAC 229929). ‒ 2.86435° S, 29.49546° E, site 6, forest with Carapa grandiflora and Polyscias fulva, 2150 m: 1 ♂, 10 Aug. 2008 (MRAC 229741); 1 ♂, 10 Sep. 2008 (MRAC 229740). ‒ 2.86435°S, 29.49540°E, site 7, tea plantation, 2100 m, site 7: 1 ♂, 10 Sep. 2008 (MRAC 241448); 1 ♂, 10 Sep. 2008 (MRAC 241449). ‒ 2.86455° S, 29.50427° E, site 4, forest with Macaranga neomildbraediana and Polyscias fulva, 2352 m: 2 ♂♂, 25 Nov. 2008 (INECN); 1 ♂, 10 Jan. 2009 (INECN); 4 ♂♂, 25 Aug. 2008 (MRAC 227149); 1 ♂, 25 Jun. 2008 (MRAC 227150).
Description
Male (holotype, Figs 7, 10, 23-25, 35-38)
MEASUREMENTS. Total length 1.8, carapace 0.80 long 0.70 wide.
CEPHALOTHORAX. Carapace dark brown, with faint dark striae radiating from fovea; striae larger towards the margin; a faint pale semicircular area behind eyes formed by two brown bands originating behind PLE, connected in front of fovea. Chelicerae yellowish brown. Retromargin with 4 teeth; promargin with 5 small teeth. Clypeus grey, 2.33 times ALE. Sternum 0.56 long, 0.50 wide, dark brown, shieldshaped.
EYES. Ocular area black. Anterior eye row recurved, posterior eye row strongly procurved; AME 0.05, ALE 0.08, PME 0.07, PLE 0.07.
LEGS. Pale yellow, tarsi and metatarsi pale grey, femora without dorsal spines, with ventral spines in two rows. Metatarsi without dorsal spines.
LEG MEASUREMENTS
LegsFePTMttTotalI0.700.220.580.560.482.54II0.660.220.560.560.422.42III0.600.200.500.500.522.32IV0.760.220.640.700.562.88
LEG CHAETOTAXY
LegsTMTibial spinesProximalDistalPositionLength/DTPositionLength/DTI0.550.120.600.401.00II0.420.180.600.441.00III0.400.123.00--IV0.450.123.25--
ABDOMEN. Oval, greyish black, with faint central dark brown band and small pale points, with six transverse pale chevrons in posterior half. Spinnerets yellowish grey, conical.
PALP (Figs 7, 10, 35-38). Dorsal tibial apophysis triangular, with two teeth near tip; retrolateral tibial apophysis almost as long as dorsal one, ending in sharp, slightly curved tip. Paracymbium with proximal arm without hairs; distal arm ending in well delimited, rounded knob. Subtegulum with transverse ventral grooves. Embolic division with short, curved embolus, posterior appendage very short and smoothly rounded; dorsal appendage triangular; frontal appendage short, club-shaped, with frontal margin with many small teeth.
Female
Unknown.
Distribution
Known only from the type locality (Fig. 1).
description: Published as part of Benoît Nzigidahera & Rudy Jocqué, 2014, On the Afrotropical genus Holmelgonia (Araneae, Linyphiidae), with the description of three new species from the Albertine Rift, pp. 1-18 in European Journal of Taxonomy 77 on pages 14-16, DOI: 10.5852/ejt.2014.77, http://zenodo.org/record/830644