Calapnita maragusan, Bernhard A. Huber, 2017

Bernhard A. Huber, 2017, Revision and cladistic analysis of the Southeast Asian leaf-dwelling spider genus Calapnita Simon (Araneae, Pholcidae), Zootaxa 4219 (1), pp. 1-63 : 58

publication ID

https://doi.org/ 10.5281/zenodo.273086

publication LSID

lsid:zoobank.org:pub:0FA0F51A-3868-4F13-A93D-E34CA5A689F8

DOI

https://doi.org/10.5281/zenodo.6040253

persistent identifier

https://treatment.plazi.org/id/03B66F68-850B-0709-FF6A-FF122F5BFA38

treatment provided by

Plazi

scientific name

Calapnita maragusan
status

sp. nov.

Calapnita maragusan View in CoL sp. nov. Figs 263–271 View FIGURES 254 – 271

Diagnosis. Easily distinguished from other species of vermiformis group by large and massive rather than flat ventral sclerite ( Figs 263–265 View FIGURES 254 – 271 ; similar but much smaller in C. nunezae ). From C. bario and C. bariengi also by distal cheliceral apophyses clearly bipartite ( Fig. 267 View FIGURES 254 – 271 ); from several species also by distinctive prolateral process on procursus ( Fig. 264 View FIGURES 254 – 271 ), by dark male sternum, by continuous wide connection between epigynal plate and ‘knob’ ( Fig. 270 View FIGURES 254 – 271 ), and by oval pore plates close together ( Fig. 271 View FIGURES 254 – 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). GoogleMaps

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). GoogleMaps

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 View FIGURES 128 – 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 View FIGURES 254 – 271 , 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 View FIGURES 254 – 271 , with tiny tubercles on subdistal hump; femur as in Fig. 266 View FIGURES 254 – 271 , distal process at 32% of femur length; tibia length/diameter 0.64/0.36; procursus as in Figs 263–265 View FIGURES 254 – 271 , 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 View FIGURES 254 – 271 , weakly sclerotized with wide anterior ‘knob’; internal genitalia as in Fig. 271 View FIGURES 254 – 271 , with oval pore plates close together.

Distribution. Known from type locality in eastern Mindanao only ( Fig. 284 View FIGURE 284 ).

ZFMK

Zoologisches Forschungsmuseum Alexander Koenig

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Pholcidae

Genus

Calapnita

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