Leptopholcus gabonicus Huber

Bernhard A. Huber, Philippe Le Gall & Jacques Francois Mavoungou, 2014, Pholcid spiders from the Lower Guinean region of Central Africa: an overview, with descriptions of seven new species (Araneae, Pholcidae), European Journal of Taxonomy 81, pp. 1-46: 23-25

publication ID

http://dx.doi.org/10.5852/ejt.2014.81

publication LSID

lsid:zoobank.org:pub:urn:lsid:zoobank.org:pub:AC69F89F-C11B-49B1-8EEE-183286EDA755

persistent identifier

http://treatment.plazi.org/id/038C87B3-FF83-FF9B-840A-1738FCADF894

treatment provided by

Jeremy

scientific name

Leptopholcus gabonicus Huber
status

sp. nov.

Leptopholcus gabonicus Huber  , sp. nov.

urn:lsid:zoobank.org:act:3CA8906E-7688-405E-AEDE-0A365C40281A

Figs 1View Figs 1 - 9, 22View Figs 21 - 22, 44-52View Figs 44 - 48View Figs 49 - 52

Diagnosis

Distinguished from only other Leptopholcus  species known from Gabon [ L. tipula ( Simon, 1907)  ; cf. figs 82-86 in Huber 2009] by shapes of uncus ( Fig. 49View Figs 49 - 52; much wider in L. tipula  , with narrower semitransparent flap), appendix ( Fig. 49View Figs 49 - 52; short and wide in L. tipula  ), and procursus ( Fig. 50View Figs 49 - 52; wider tip in L. tipula  ); females of these two species are not easily distinguished. Distinguished from L. obo Huber, 2011  (São Tomé and Príncipe  ) by shapes of trochanter apophysis, procursus, uncus, appendix, and longer epigynum (cf. figs 324-327 in Huber 2011b); from other Central African species ( L. dschang Huber, 2011  ; L. signifer Simon, 1893  ; L. debakkeri Huber, 2011  ) by absence of clypeus modification in male ( Fig. 45View Figs 44 - 48).

Etymology

Named for the country of Gabon, where this species is endemic.

Type material

Holotype ♂, in ZFMK ( Ar 11932)GoogleMaps  .

Type locality

GABON, Ogooué-Ivindo, Monts de Belinga  , forest near Mayebout   GoogleMaps (1°06.7’N, 13°06.6’E), 500 m a.s.l., 13-14 Aug. 2011 (B.A. & S.R. Huber).

Other material examined

GABON: Ogooué-Ivindo: 3 ♂♂, 4 ♀♀ in ZFMK ( Ar 11933), same data as holotypeGoogleMaps  ; 2 ♀♀, 3 juvs in pure ethanol, in ZFMK ( Gab 160, 200), same dataGoogleMaps  . 1 ♂ in ZFMK ( Ar 11934), near Mohoba Mozeye (0°16.8’N, 13°20.9’E), 510 m a.s.l., forest along road, 17 Aug. 2011 (B.A. & S.R. Huber)GoogleMaps  ; 1 juv. in pure ethanol, in ZFMK ( Gab 170), same dataGoogleMaps  . Moyen-Ogooué: 1 ♂ in ZFMK ( Ar 11935), near Ndjolé , ‘site 2’ (0°05.9’S, 10°52.4’E), 140 m a.s.l., forest near brook, 11 Aug. 2011 (B.A. & S.R. Huber)GoogleMaps  . 1 ♀ in ZFMK ( Ar 11936), near Ndjolé , ‘site 1’ (0°09.0’S, 10°40.0’E), 120 m a.s.l., forest near brook, 11 Aug. 2011 (B.A. & S.R. Huber)GoogleMaps  ; 1 juv. in pure ethanol, in ZFMK ( Gab 229), same dataGoogleMaps  . Estuaire: 2 ♂♂, 1 ♀ in ZFMK ( Ar 11937), Monts de Cristal, near Kinguélé (0°27.8’N, 10°16.7’E), 100 m a.s.l., forest, 10 Aug. 2011 (B.A. & S.R. Huber)GoogleMaps  ; 2 ♀♀ in pure ethanol, in ZFMK ( Gab 190), same dataGoogleMaps  .

Description

Male (holotype)

MEASUREMENTS. Total body length 6.0, carapace width 0.77. Leg 1: 33.4 (8.5 + 0.4 + 7.7 + 13.3 + 3.5), tibia 2: 5.8, tibia 3: 3.8, tibia 4: 6.4; tibia 1 L/d: 116. Distance PME-PME 290 µm, diameter PME 80 µm, distance PME-ALE 25 µm, AME absent.

COLOR. Entire animal pale whitish to ochre-yellow, only patella area and tibia-metatarsus joints darker.

BODY. Habitus as in Fig. 44View Figs 44 - 48; ocular area not elevated, each triad on low hump; carapace without median furrow; clypeus unmodified; sternum wider than long (0.64/0.46), unmodified. Chelicerae as in Fig. 51View Figs 49 - 52, with pair of small lateral processes barely visible in dissecting microscope; without stridulatory ridges.

PALPS. As in Figs 46-47View Figs 44 - 48 and 49-50View Figs 49 - 52, coxa unmodified, trochanter with ventral apophysis with serrated tip, femur with large ventral hump and small retrolateral process proximally, procursus rather simple, with two membranous ventral processes, one arising from ventral ‘knee’, the other more distally; bulb with weakly sclerotized embolus, rod-shaped appendix with small scales, uncus consisting of sclerotized part with small scales and lighter dorsal flap.

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 pseudosegments not seen.

VARIATION. Tibia 1 in 6 other males: 7.1-7.7 (mean 7.3).

Female

In general similar to male; tibia 1 in 6 females: 6.2-7.0 (mean 6.6). Epigynum very simple, weakly sclerotized plate, without ‘knob’, internal structures visible through cuticle ( Fig. 48View Figs 44 - 48); internal genitalia as in Fig. 52View Figs 49 - 52.

Natural history

All specimens were found on the undersides of leaves.

Distribution

Known from various localities in Gabon ( Fig. 22View Figs 21 - 22).

ZFMK

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