The spider family Micropholcommatidae (Arachnida: Araneae: Araneoidea): a relimitation and revision at the generic level
Rix, Michael
Harvey, Mark
ZooKeys
2010
2010-02-22
36
36
1
321
Rix & Harvey
Rix & Harvey
2010
[140,497,1187,1214]
Arachnida
Micropholcommatidae
Taliniella
Animalia
Araneae
72
73
Arthropoda
species
vinki
sp. nov.
Figs 129–130
Typematerial. Holotypemale: Mount Thomas Conservation Area, Canterbury, New Zealand, track to summit from Wooded Gully Picnic Area, sifting moss, 43°11'31"S, 172°20'10"E, 3.iv.2006, M. Rix( MNZ). Paratypes: 1 male, same data as holotype( WAMT80032 DNA-MPE).
Etymology.The specific epithet is a patronym in honour of Cor Vink, of AgResearch (Lincoln Science Centre, New Zealand), for his contributions to New ZealandArachnology, and his hospitality during field work around Christchurch.
Diagnosis.Males of Taliniella vinkican be distinguished from T. nigraby the presence of a dorsal scute on the male abdomen (Fig. 129A) and the presence of a longer embolus (Fig. 130). Females are unknown.
Description. Holotypemale: Total length 0.80. Carapace 0.44 long, 0.35 wide. Abdomen 0.59 long, 0.45 wide. Leg I femur 0.27. Cephalothorax, abdomen brown; legs dark tan-yellow. Carapace raised anteriorly, not fused to sternum except around petiole; dorsal surface of pars cephalica slightly convex, with declining profile in lateral view. Eight eyes present on anterior margin of pars cephalica; AME 0.6x diameter of ALE; PME separated by their own diameter. Chelicerae each with bulging anterior projection; promargin with two peg teeth. Legs relatively short (leg I femur-carapace ratio 0.61); macrosetae absent. Abdomen oval, slightly shrunken, covered with hairlike setae; dorsal scute large, covering most of dorsal surface of abdomen; lateral sclerotic strips absent. Pedipalpal patella with retrolaterally-directed, hooked lRPA bearing dorsal flange, broad, flange-like distal apophysis and ornate, ridged cuticular microstructure; tegulum smooth, with rounded basal embolic bulge, excavate ETR and curved, sclerotised marginal rim; embolus very long (length >> 5× width), coiling 1.5x around margin of tegulum (Fig. 130).
Distribution.Known only from the Mount Thomas Conservation Area, north of Christchurch.
Remarks. Taliniella vinkiis an enigmatic species, similar to Taliniella nigrafrom the North Island. This species was included in the molecular phylogenetic analysis of Rix et al. (2008)as “ Textricellasp. NZ”, where it was inferred as a basal taxon, sister to all other species now placed in the genera Eterosonycha, Epigastrina, Normplatnicka, Raveniellaand Rayforstia(see Fig. 1).
2608825989
2006-04-03
MNZ
M. Rix
New Zealand
-43.191944
Mount Thomas Conservation Area
19
172.3361
Wooded Gully Picnic Area
72
73
1
Canterbury
holotype