Hantu kapit, Huber, 2016

Bernhard A. Huber, 2016, A new genus of ground and litter-dwelling pholcine spiders from Sarawak (Araneae, Pholcidae), European Journal of Taxonomy 186, pp. 1-15 : 4-9

publication ID

https://doi.org/ 10.5852/ejt.2016.186

publication LSID

lsid:zoobank.org:pub:B73C6A06-1245-41CB-9175-C33BC2273245

DOI

https://doi.org/10.5281/zenodo.10812829

persistent identifier

https://treatment.plazi.org/id/C86E7783-5E91-4FB9-AB7E-A7F32FDA9431

taxon LSID

lsid:zoobank.org:act:C86E7783-5E91-4FB9-AB7E-A7F32FDA9431

treatment provided by

Jeremy

scientific name

Hantu kapit
status

gen. et sp. nov

Hantu kapit View in CoL gen. et sp. nov.

urn:lsid:zoobank.org:act:C86E7783-5E91-4FB9-AB7E-A7F32FDA9431

Figs 1–2 View Figs 1 – 6 , 8–25 View Figs 8 – 13 View Figs 14 – 19 View Figs 20 – 25 , 40–42 View Figs 40 – 45

Gen.n. Bor80 – Huber et al. 2015a: 73–74.

Diagnosis

Easily distinguished from H. niah gen. et sp. nov. (and from other putatively close relatives in the genera Khorata , Savarna , and Aetana ) by two pairs of horns on male ocular area ( Figs 10 View Figs 8 – 13 , 14, 15, 17 View Figs 14 – 19 ), by extremely long apophysis on male palpal trochanter (longer than femur; Fig. 9 View Figs 8 – 13 ), and by scape on epigynum ( Fig. 40 View Figs 40 – 45 ) less sclerotized than in H. niah gen. et sp. nov. and with Fne transversal folds.

Etymology

The species name is derived from the type locality; noun in apposition.

Type material

MALAYSIA-BORNEO: holotype, Ƌ, Sarawak, near Kapit , forest along river, 1.937– 1.944° N, 112.904– 112.910° E, 80–120 m a.s.l., 20 Jul. 2014 (B.A. Huber, S.B. Huber), ZFMK ( Ar 15068 ) GoogleMaps .

Other material examined

MALAYSIA-BORNEO, Sarawak: 7 ƋƋ, 4 ♀♀, same data as holotype, ZFMK ( Ar 15069–70 ; 6 ƋƋ, 3 ♀♀) GoogleMaps and SMK (1 Ƌ, 1 ♀) GoogleMaps ; 2 ♀♀, 4 juvs, same data, in pure ethanol, ZFMK ( Bor 183 ) GoogleMaps .

Description

Male (holotype)

MEASUREMENTS. Total body length 2.4, carapace width 0.9. Leg 1: 24.5 (5.8 + 0.4 + 5.7 + 9.3 + 3.3), tibia 2: 3.4, tibia 3: 2.4, tibia 4: 3.1; tibia 1 L/d: 72. Distance PME-PME 500 µm, diameter PME 105 µm, distance PME-ALE 25 µm, no AME.

COLOR. Carapace pale ochre with large dark lateral marks and median mark posteriorly, dark median line, ocular area and clypeus dark brown. Sternum dark brown to black. Legs ochre to light brown, without dark rings. Abdomen ochre-grey with large dorsal and lateral marks; ventral side largely covered by large dark mark and smaller dark mark at spinnerets.

BODY. Habitus as in Fig. 1 View Figs 1 – 6 ; ocular area highly modiFed ( Figs 10 View Figs 8 – 13 , 14, 15, 17 View Figs 14 – 19 ), with two pairs of large horns arising from near PME and PLE and pair of smaller processes arising from near ALE; each triad on short stalk directed toward lateral; carapace with distinct thoracic furrow; clypeus with small median process ( Figs 15, 17 View Figs 14 – 19 ); sternum wider than long (0.60/0.50), unmodiFed. Chelicerae as in Fig. 11 View Figs 8 – 13 , with pair of proximal lateral apophyses in rather frontal position and pair of small, distal apophyses near lamellae; without modiFed hairs.

PALPS. As in Figs 8–9 View Figs 8 – 13 , coxa with sclerotized protruding rim ventro-distally; trochanter with distinctive long retrolateral apophysis widening distally and provided with small teeth at tip ( Fig. 16 View Figs 14 – 19 ); femur large, without processes; patella unusually long; tibia long and slender. Procursus highly complex, apparently with several hinges between distinctive sclerites. Bulb simple, weakly sclerotized embolus with subdistal branch.

LEGS. With single ventral row of ~25 spines on femora 1; without curved hairs; with short vertical hairs in two dorsal rows on all femora and tibiae; retrolateral trichobothrium on tibia 1 at 6%; prolateral trichobothrium absent on tibia 1, present on other tibiae. Tarsus 1 pseudosegments indistinct, only distally ~15 visible in dissecting microscope.

Male (variation)

Tibia 1 in 7 other males: 5.6–5.9 (mean 5.7). Spines on femora variable in thickness and number (~20–30).

Female

In general similar to male ( Fig. 2 View Figs 1 – 6 ); ocular area unmodiFed, triads closer together (distance PME-PME 220 µm), not on stalks; clypeus unmodiFed; no spines on femora; fewer vertical hairs on femora and tibiae (but especially on tibiae also with higher than usual density). Tibia 1 in 4 females: 4.7, 4.8, 4.9, 4.9. Epigynum large dark plate, weakly sclerotized, slightly protruding and with many Fne transversal folds, especially in posterior half ( Figs 13 View Figs 8 – 13 , 40, 41 View Figs 40 – 45 ); with distinctive scape, pale whitish distally; internal genitalia as in Figs 12 View Figs 8 – 13 and 42 View Figs 40 – 45 .

Natural history

The spiders were found in domed webs in small holes in the ground along a river in well-preserved forest.

Distribution

Known from type locality near Kapit only ( Fig. 7 View Fig. 7 ).

ZFMK

Germany, Bonn, Zoologische Forschungsinstitut und Museum "Alexander Koenig"

SMK

SMK

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Pholcidae

Genus

Hantu

GBIF Dataset (for parent article) Darwin Core Archive (for parent article) View in SIBiLS Plain XML RDF