Magana velox Huber

Huber, Bernhard A. & Carvalho, Leonardo S., 2019, Filling the gaps: descriptions of unnamed species included in the latest molecular phylogeny of Pholcidae (Araneae), Zootaxa 4546 (1), pp. 1-96: 40-42

publication ID

https://doi.org/10.11646/zootaxa.4546.1.1

publication LSID

lsid:zoobank.org:pub:D2C9F49A-9B76-40AE-9A60-CAE9B99BA547

persistent identifier

http://treatment.plazi.org/id/E21587DB-FFBF-FFFD-FF11-FF5A4A2EF940

treatment provided by

Plazi

scientific name

Magana velox Huber
status

sp. n.

Magana velox Huber  sp. n.

Figs 135–147View FIGURES 135–142View FIGURES 143–144View FIGURES 145–147

Gen.n. Om6: Eberle et al. 2018 (molecular data); Huber et al. 2018: fig. 2.

Type material. OMAN: ♂ holotype, ZFMK ( Ar 20623), Ash Sharqiyah South, rock desert between Sur and Kamil (22.4616°N, 59.3870°E), 95 m a.s.l., 18.ii.2018 (B.A. Huber)GoogleMaps  .

Other material examined. OMAN: 1♂, ZFMK (Ar 20624), and  3♀ 1 juv. in pure ethanol, ZFMK (Om118), same data as holotypeGoogleMaps  . 4♂ 4♀, ZFMK (Ar 20625), and 2♀ 2 juvs in pure ethanol, ZFMK (Om29), same localityGoogleMaps  at 22.462°N, 59.388°E, 90 m a.s.l., under rocks in desert, 23.iii.2017 (B.A. Huber).

Etymology. The species name is an adjective, Latin velox  = swift, quick, fast, and refers to the rapid running of this species.

Diagnosis. Males are easily distinguished from other Old World Ninetinae  (representatives of Ninetis  ) by distinctively curved procursus ( Figs 143–144View FIGURES 143–144; left palp in dorsal view: clockwise); also by absence of pair of anterior humps on male sternum ( Fig. 145View FIGURES 145–147) and by short prolateral apophysis on male palpal femur proximally ( Fig. 143View FIGURES 143–144). Females with trapezoidal anterior epigynal plate with slightly protruding anterior part provided with stronger hairs, and internal genitalia with pair of small dark receptacle-like structures and larger transparent median sac ( Figs 142View FIGURES 135–142, 147View FIGURES 145–147).

Description. Male (holotype). MEASUREMENTS. Total length 0.97, carapace width 0.43. Distance PME-PME 40 µm; diameter PME 50 µm; distance PME-ALE 20 µm; distance AME-AME 10 µm, diameter AME 30 µm. Leg 1: 2.07 (0.60 + 0.13 + 0.57 + 0.50 + 0.27), tibia 2: 0.45, tibia 3: 0.42, tibia 4: 0.60; tibia 1 L/d: 8.8.

COLOR (in ethanol). Prosoma and legs pale ochre-yellow. Abdomen monochromous pale ochre-gray.

BODY. Habitus as in Figs 135–136, 138–139View FIGURES 135–142. Ocular area barely elevated; thoracic furrow absent; clypeus barely modified, slightly bulging ( Fig. 146View FIGURES 145–147). Sternum slightly wider than long (0.30/0.28), unmodified.

CHELICERAE. With pair of pointed frontal apophyses and stridulatory ridges ( Figs 145–146View FIGURES 145–147).

PALPS. As in Figs 143–144View FIGURES 143–144; coxa unmodified, trochanter with low ventral process; femur proximally with short prolateral apophysis proximally; tibia globular, procursus distinctively curved towards prolateral (circular in dorsal view); bulb with slightly sclerotized ventral apophysis and semitransparent dorsal process (presumably carrying opening of sperm duct—not seen).

Legs. Without spines and curved hairs, few vertical hairs; retrolateral trichobothrium of tibia 1 at 54%; tibia 1 without prolateral trichobothrium (present on other tibiae); tarsus 1 with few pseudosegments (~4, poorly visible in dissecting microscope).

Male (variation). Tibia 1 in 5 other males: 0.47–0.53 (mean 0.49).

Female. In general similar to male ( Fig. 137View FIGURES 135–142), but clypeus not bulging. Tibia 1 in 9 females: 0.45–0.60 (mean 0.52). Epigynum simple externally ( Fig. 140View FIGURES 135–142), trapezoidal anterior plate with variably distinct and slightly protruding anterior part provided with stronger hairs, short posterior plate. Internal genitalia with pair of small dark receptacle-like structures and larger transparent median sac; apparently without pore plates ( Figs 142View FIGURES 135–142, 147View FIGURES 145–147).

Distribution. Known from type locality only ( Fig. 342View FIGURE 342).

Natural history. This species was found in a rocky desert ( Fig. 339View FIGURES 336–341), under rocks and small stones. When disturbed, it ran away very quickly. In small glass vials it built flimsy webs with small platforms on which the spider rested.

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Pholcidae

Genus

Magana