Pehrforsskalia conopyga Deeleman-Reinhold and van Harten, 2001

Huber, Bernhard A., 2009, Life on leaves: leaf-dwelling pholcids of Guinea, with emphasis on Crossopriza cylindrogaster Simon, a spider with inverted resting position, pseudo-eyes, lampshade web, and tetrahedral egg-sac (Araneae: Pholcidae), Journal of Natural History 43 (39 - 40), pp. 2491-2523: 2516-2521

publication ID

http://doi.org/ 10.1080/00222930903207876

persistent identifier

http://treatment.plazi.org/id/0396E66E-FFF1-BB3E-FF3D-D1D7FCD67B1F

treatment provided by

Felipe

scientific name

Pehrforsskalia conopyga Deeleman-Reinhold and van Harten, 2001
status

 

Pehrforsskalia conopyga Deeleman-Reinhold and van Harten, 2001  

( Figures 13 View Figures 7–14 , 41–44 View Figures 32–44 , 128–147 View Figures 128–134 View Figures 135–147 , 151 View Figures 150–151 ) Pehrforsskalia conopyga Deeleman-Reinhold and van Harten 2001, p. 204   –206, figs 30–37.

Types

Male holotype and 8 female paratypes from Hamam ‘Ali (14°41′N, 44°08′E), Yemen; 1600 m a.s.l., vegetation bordering citrus plantation, 19.viii.1998 (A. van Harten), in RMNH, not examined   .

Diagnosis

Easily distinguished from other pholcines by the unique palpal morphology (trochanter apophysis, procursus, bulbal apophysis; Figures 128, 129 View Figures 128–134 ). Two closely related undescribed species occur in Mozambique and Tanzania (B.A. Huber, unpublished data); they differ by the shape of the procursi.

Male (Okavango)

Total body length 2.5, carapace width 0.7. Leg 1: 21.9 (5.7 + 0.3 + 5.5 + 8.9 + 1.5), tibia 2 missing, tibia 3: 1.9, tibia 4: 2.7, tibia 1 L/d: 89. Habitus as in Figures 41 and 42 View Figures 32–44 ; carapace pale ochre-yellow with brown median band widening posteriorly, ocular area and clypeus not darkened, sternum whitish, legs monochromous pale ochre-yellow, abdomen grey with some poorly visible marks dorsally and laterally. Distance PME–PME 400 µm, diameter PME 80 µm, distance PME–ALE 25 µm, distance AME–AME 35 µm; diameter AME ∼20 µm (lenses apparently present). Ocular area elevated, each triad on distinct stalk with cone-shaped projection medially of PME (with possibly expansible cuticle; Figures 135, 138 View Figures 135–147 ), few stronger hairs posteriorly on ocular area. No thoracic furrow, clypeus unmodified. Chelicerae as in Figure 130 View Figures 128–134 , with unsclerotized lateral apophyses distally. Sternum wider than long (0.52/0.48), unmodified. Palps as in Figures 128 and 129 View Figures 128–134 , coxa with indistinct retrolateral projection, trochanter with distinctive apophysis that appears fused to femur, femur otherwise not modified, tarsal organ capsulate ( Figure 137 View Figures 135–147 ), procursus complex, distally with two main branches (one of them provided with two spine-like processes) and a black apophysis at their basis ( Figures 131, 132 View Figures 128–134 , 139 View Figures 135–147 ), bulb with simple, weakly sclerotized embolus, only one sclerotized projection with dorsal branch ( Figures 128 View Figures 128–134 , 140 View Figures 135–147 ; Deeleman-Reinhold and van Harten 2001 considered this to be homologous with the Pholcus   uncus, but the position rather agrees with the appendix). Legs without spines and curved hairs, few vertical hairs; retrolateral trichobothrium on tibia 1 at 5%; prolateral trichobothrium missing on tibia 1, seen on tibiae 3 and 4; tarsal pseudosegments not visible in dissecting microscope. Spinnerets as in Figure 141 View Figures 135–147 ; ALS with one widened, one pointed, and six cylindrically-shaped spigots; PMS with two small spigots. Gonopore with four epiandrous spigots ( Figure 136 View Figures 135–147 ).

Variation

In some males, median band on carapace extends to ocular area ( Figure 41 View Figures 32–44 ); patellae and tibia–metatarsus joints usually light brown; marks on abdomen variably distinct, sometimes missing. Tibia 1 in seven other males: 4.9–6.3 (mean 5.4).

Female

In general similar to male but triads closer together (distance PME–PME 170 µm) and not on stalks, ocular area only slightly elevated ( Figure 144 View Figures 135–147 ). Tibia 1 in 16 females: 3.8–5.1 (mean 4.5). Epigynum simple oval plate externally ( Figures 43 View Figures 32–44 , 142 View Figures 135–147 ), with distinctive internal structures visible through cuticle ( Figure 133 View Figures 128–134 ); internal genitalia as in Figures 44 View Figures 32–44 and 134 View Figures 128–134 . Tip of palpal tarsus ending in sclerotized cone accompanied be several strong bristles ( Figure 147 View Figures 135–147 ). Spinnerets and spigots as in male ( Figure 145 View Figures 135–147 ). Tarsus 4 with ventral row of comb-hairs ( Figure 146 View Figures 135–147 ).

Distribution

Widely distributed in Africa and Yemen ( Figure 151 View Figures 150–151 ). It is here newly recorded from Guinea, Sierra Leone, Côte d’Ivoire, Cameroon, Gabon, Uganda, Burundi, and Botswana.

Material examined

CAPE VERDE: S Tiago, São Jorge dos Orgaos [15°03′N, 23°37′W, 500 m a.s.l.], in grass in irrigation ditch, 31.i.1984 (J. Prinsen), 13 in RMNH GoogleMaps   ; São Jorge dos Orgaos, xii.1999 (A. van Harten), 13 5♀ in RMNH   .

GUINEA: Moyenne-Guinée : near Sêbori, forest outside of cave (10°46.6′N, 12°17.4′W), 1010 m a.s.l., 22.xi.2008 (B.A. Huber), 13 in ZFMK GoogleMaps   ; same data, 5♀ in pure ethanol, in ZFMK GoogleMaps   ; near Doucki (10°59.0′N, 12°37.9′W), gallery forest, 990 m a.s.l., 23.xi.2008 (B.A. Huber), 13 in pure ethanol, in ZFMK GoogleMaps   . Basse-Guinée : near Koumbaya (10°09.9′N, 12°53.2′W), forest, 230 m a.s.l., 19.xi.2008 (B.A. Huber), 43 2♀ in pure ethanol, in ZFMK GoogleMaps   .

SIERRA LEONE: “Mcy”, E. Simon collection no. 15371, no further data, 1♀ in MNHN   .

CÔTE D’IVOIRE: Bouaké [∼ 7°41′N, 5°02′W], Expt. Warda, 29.vii.1994 (A. Russell-Smith), 13 in ZFMK GoogleMaps   ; same locality, viii.1994 (A. Russell-Smith), 13 7♀ in ZFMK GoogleMaps   .

NIGERIA: north of Ibadan , IITA (International Institute for Tropical Agriculture)   [7°29.6′N, 3°53.4′E], fallow bush, 22.iv.1994 (A. Russell-Smith), 33 2♀ in ZFMK GoogleMaps   ; same locality, “RD verges”, 15.v.1974 (A. Russell-Smith), 13 in BMNH GoogleMaps   .

CAMEROON: South Region: near Ebolowa (2°54.9′N, 11°08.3′E), 620 m a.s.l., underside of banana leaf, 12.iv.2009 (B.A. Huber), 13 in ZFMK GoogleMaps   . Northwest Region: near Bamenda , under trash and logs at roadside (6°00.5′N, 10°18.1′E), 1750 m a.s.l., 16./ 18.iv.2009 (B.A. Huber), 2♀ in pure ethanol, in ZFMK GoogleMaps   . Near Oku (6°14.2′N, 10°31.5′E), ∼ 2200 m a.s.l., in pile of dead leaves on ground, 17.iv.2009 (B.A. and J.C. Huber), 2♀ in pure ethanol, in ZFMK GoogleMaps   .

GABON: Cap Santa Clara [0°31.6′N, 9°19.2′E], forest, 29.ix.1985 (A. Pauly), 13 in MRAC GoogleMaps   (172943).

UGANDA: Ruwenzori [∼ 0.2°N, 30°E], 1952 (G.O. Evans), 33 4♀ in BMNH GoogleMaps   .

BURUNDI: Cabara [4°06.8’S, 29°31.7′E], Miombo woodland, with Brachystegia   , by hand, 850 m a.s.l., 23.iv.2002 (B. Nzigidahera), 13 (with one teratological palp) in MRAC GoogleMaps   (213920).

BOTSWANA: Okavango Delta , grassland on Boro River [∼ 19°34’S, 23°03′E], “at KB 347”, 23.xii.1977 (A. Russell-Smith), 13 in ZFMK GoogleMaps   .

RMNH

National Museum of Natural History, Naturalis

ZFMK

Zoologisches Forschungsmuseum Alexander Koenig

MNHN

Museum National d'Histoire Naturelle

IITA

International Institute of Tropical Agriculture

MRAC

Musée Royal de l’Afrique Centrale