Panjange malagos Huber, sp. nov.
Creators: name: Huber, Bernhard A.
name: Nuñeza, Olga M.
Publisher: name: Zenodo
Year: 2015
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Pholcidae
Panjange
Panjange malagos

description: Panjange malagos Huber sp. nov.
urn:lsid:zoobank.org:act:00D7154A-7034-4494-AE2D-026298207059
Figs 5, 17–23
Diagnosis
Easily distinguished from closest known relatives (Pa. casaroro Huber sp. nov.; Pa. camiguin Huber sp. nov.) by short male eye stalks (Fig. 17), and by morphology of male palps (Figs 18–21; symmetric modiFcations of trochanter and femur; asymmetric shapes of procursi); from Pa. casaroro Huber sp. nov. also by simple epigynal scape without pair of semi-transparent lobes (Fig. 22); from Pa. camiguin Huber sp. nov. also by absence of strong transversal sclerite in female internal genitalia (Fig. 23).
Etymology
The species name is derived from the type locality; noun in apposition.
Type material
PHILIPPINES: holotype Ƌ, in ZFMK (Ar 12998), Mindanao, Davao del Sur Province, Malagos Watershed (7.184°N, 125.415°E), 390 m a.s.l., forest along river, on leaves, 14 Feb. 2014 (B.A. Huber, E. Mondejar).
Other material examined
PHILIPPINES: 1 Ƌ, 2 ♀♀ in ZFMK (Ar 12999) and 1 ♀ in MSU-IIT, same data as holotype; 1 ♀ in pure ethanol, in ZFMK (Phi 259), same data.
Description
Male (holotype)
MEASUREMENTS. Total body length 4.6, carapace width 0.9. Leg 1: 41.3 (9.7 + 0.4 + 9.8 + 19.4 + 2.0), tibia 2: 6.0, tibia 3: 3.2, tibia 4: 4.9; tibia 1 L/d: 110. Distance PME–PME 270 µm, diameter PME 120 µm, distance PME–ALE ~40 µm; AME absent.
COLOR. Carapace pale ochre yellow with indistinct posterior median mark, ocular area and clypeus brown, black mark in AME area; sternum whitish; legs ochre-yellow with dark brown patellae and tibiametatarsus joints; abdomen ochre-gray, with black marks dorsally, monochromous ventrally.
BODY. Habitus as in Fig. 5; ocular area raised, each triad on short stalk, medially with pointed process directed toward frontal and ventral (Fig. 17); carapace without median furrow; clypeus unmodiFed; sternum wider than long (0.65/0.55), unmodiFed.
CHELICERAE. As in Fig. 17, with simple pair of weakly sclerotized processes in rather frontal position, without modiFed hairs; without stridulatory ridges.
PALPS. As in Figs 18–21; proximal segments symmetric in shape but slightly larger on left side (e.g., length and diameter of right tibia about 95–97% of left tibia); coxa with strong ventro-distal rim but otherwise unmodiFed; trochanter with pointed retrolateral apophysis and rounded ventral hump; femur with dorsal hump and weakly sclerotized semitransparent process retrolatero-ventrally; tarsus with long whitish elongation with terminal tarsal organ; procursi of left and right palps strongly different, distal part of procursus clearly hinged in left palp, not hinged in right palp; bulb slightly smaller in right palp, with long processes extending in opposite directions (dorsal embolus; ventral appendix) almost symmetric (slightly longer in left palp).
LEGS. Without spines and curved hairs; few vertical hairs; retrolateral trichobothrium on tibia 1 at 3%; prolateral trichobothrium absent on tibia 1, present on other tibiae; tarsus 1 with> 20 pseudosegments, only distally fairly distinct.
Male (variation)
Not seen. Tibia 1 missing in other male.
Female
In general similar to male but eye triads on low humps and closer together (distance PME–PME 210 µm). Tibia 1 in 3 females: 6.9, 7.0, 7.9. Epigynum large elongate plate, anterior part weakly sclerotized, with symmetric or at most slightly asymmetric internal structures visible through cuticle; posterior part orange, with extensible scape with distinct transversal folds and small median process (“knob”) at tip (Fig. 22); internal genitalia as in Fig. 23.
Natural history
The spiders were found in very low abundance on the undersides of leaves about 50–200 cm above the ground in a disturbed part of the forest.
Distribution
Known from type locality on Mindanao Island only (Fig. 16).
description: Published as part of Huber, Bernhard A. & Nuñeza, Olga M., 2015, Evolution of genital asymmetry, exaggerated eye stalks, and extreme palpal elongation in Panjange spiders (Araneae: Pholcidae), pp. 1-46 in European Journal of Taxonomy 169 on pages 11-14, DOI: 10.5852/ejt.2015.169, http://zenodo.org/record/1406222