Calapnita maragusan Huber, 2017, sp. nov.
Creators: name: Bernhard A. Huber
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Pholcidae
Calapnita
Calapnita maragusan

description: Calapnita maragusan sp. nov. Figs 263–271
Diagnosis. Easily distinguished from other species of vermiformis group by large and massive rather than flat ventral sclerite (Figs 263–265; similar but much smaller in C. nunezae). From C. bario and C. bariengi also by distal cheliceral apophyses clearly bipartite (Fig. 267); from several species also by distinctive prolateral process on procursus (Fig. 264), by dark male sternum, by continuous wide connection between epigynal plate and ‘knob’ (Fig. 270), and by oval pore plates close together (Fig. 271).
Etymology. The species name is derived from the type locality; noun in apposition.
Material examined. Holotype. PHILIPPINES: ♂, ZFMK (Ar 1 6080), Mindanao, Davao, Compostela Valley, Maragusan, ‘site 1’ (7.345°N, 126.173°E), 770 m a.s.l., 21.xi.2014 (M.A. Responte).
Other material. PHILIPPINES: 1♀ 3 juvs, ZFMK, together with holotype. 2♂ 4♀, ZFMK (Ar 16 098), and 1♂ 1♀ 7 juvs, MSU-IIT, Mindanao, Davao, Compostela Valley, Maragusan, ‘site 2’ (7.338°N, 126.176°E), 860 m a.s.l., 22.xi.2014 (M.A. Responte).
Description. Male (holotype)
MEASUREMENTS. Total body length 5.5, carapace width 0.75. Leg 1: 33.0 (8.3 + 0.4 + 7.3 + 14.0 + 3.0), tibia 2: 5.9, tibia 3 missing, tibia 4: 6.2; tibia 1 L/d: 112. Distance PME-PME 250 µm, diameter PME 80 µm, distance PME-ALE ~30 µm; no trace of AME.
COLOR. Entire animal mostly pale gray to whitish, sternum darker, legs slightly yellowish with brown patellae and tibia-metatarsus joints.
BODY. Habitus as in C. nunezae (cf. Fig. 133); ocular area barely elevated, each triad on very low hump; carapace without median furrow; clypeus unmodified; sternum as wide as long (0.52), unmodified.
CHELICERAE. As in Figs 267–268, with pair of bipartite apophyses near lamellae, pair of lateral processes; without modified hairs; without stridulatory ridges.
PALPS. In general similar to C. vermiformis (cf. figs 139 and 140 in Huber 2011); trochanter apophysis as in Fig. 269, with tiny tubercles on subdistal hump; femur as in Fig. 266, distal process at 32% of femur length; tibia length/diameter 0.64/0.36; procursus as in Figs 263–265, with conical prolateral process and distinctive large globular ventro-distal sclerite; bulb length 0.40; embolus length 0.55.
LEGS. Without spines and curved hairs; few vertical hairs; retrolateral trichobothrium on tibia 1 at 2%; prolateral trichobothrium absent on tibia 1, present on other tibiae; tarsus 1 pseudosegments not seen in dissecting microscope.
Male (variation). Tibia 1 in one other male: 8.3 (missing in others).
Female. In general similar to male but sternum whitish; eye triads slightly closer together (distance PME-PME 225 µm). Tibia 1 in 2 females: 6.1, 6.8. Epigynum as in Fig. 270, weakly sclerotized with wide anterior ‘knob’; internal genitalia as in Fig. 271, with oval pore plates close together.
Distribution. Known from type locality in eastern Mindanao only (Fig. 284).
description: Published as part of Bernhard A. Huber, 2017, Revision and cladistic analysis of the Southeast Asian leaf-dwelling spider genus Calapnita Simon (Araneae, Pholcidae), pp. 1-63 in Zootaxa 4219 (1) on page 58, DOI: 10.5281/zenodo.273086