Smeringopina ngungu , Huber, Bernhard A., 2013

Huber, Bernhard A., 2013, Revision and cladistic analysis of the Guineo-Congolian spider genus Smeringopina Kraus (Araneae, Pholcidae, Zootaxa 3713 (1), pp. 1-160: 50

publication ID

http://dx.doi.org/10.11646/zootaxa.3713.1.1

publication LSID

lsid:zoobank.org:pub:C5F0BC11-92C0-4B30-9DB3-200882AC8950

persistent identifier

http://treatment.plazi.org/id/B20287ED-FFD5-FFAB-B990-C768FCCC3AFE

treatment provided by

Plazi

scientific name

Smeringopina ngungu
status

new species

Smeringopina ngungu  new species

Figs. 842–855View FIGURES 842 – 849View FIGURES 850 – 855

Type. ♂ holotype from Congo D.R., Bas Congo Province, Thysville [=Mbanza-Ngungu; 5 ° 15 ’S, 14 ° 52 ’E, ~ 600 m a.s.l.], in large cave (1500 m), 6.x. 1938 (M. Bequaert), in MRAC (1374 - 82, part).

Other material examined. Congo D.R.: Bas Congo: Grottes de Thysville, 1955 (Elias), 1 ♀ in MRAC (81948).

Etymology. The name is a noun in apposition, derived from the type locality.

Diagnosis. Easily distinguished from known congeners by large clypeus projection with subdistal branch on posterior side and huge male cheliceral apophyses ( Figs. 847View FIGURES 842 – 849, 850View FIGURES 850 – 855), by distinctive shape of procursus (slender distal element directed toward dorsally; Figs. 851, 852View FIGURES 850 – 855), and by very small epigynum consisting of anterior sclerotized arc and posterior plate projecting into and largely filling this arc ( Figs. 848View FIGURES 842 – 849, 854View FIGURES 850 – 855).

Male (holotype). Total body length 4.5, carapace width 1.6. Leg 1: 12.8 + 0.7 + 13.1, metatarsus broken, tibia 2: 8.8, tibia 3: 6.0, tibia 4: 8.5; tibia 1 L/d: 99. Distance PME-PME 195 µm, diameter PME 135 µm, distance PME- ALE 70 µm, distance AME-AME 45 µm, diameter AME 105 µm. Entire specimen apparently bleached, mostly pale ochre-yellow, carapace, clypeus and sternum without clear darker pattern, legs without darker rings, abdomen with barely visible darker pattern, ventral dark bands without lateral constriction. Habitus as in Fig. 842View FIGURES 842 – 849, ocular area slightly elevated, secondary eyes with very indistinct ‘pseudo-lenses’; clypeus with very strong and large median apophysis with subdistal branch on posterior side ( Figs. 847View FIGURES 842 – 849, 850View FIGURES 850 – 855); deep thoracic pit and pair of shallow furrows diverging behind pit. Chelicerae as in Figs. 847View FIGURES 842 – 849 and 850View FIGURES 850 – 855, with extremely long lateral proximal apophyses, pointed distal apophyses, without modified hairs. Palps as in Figs. 844–846View FIGURES 842 – 849, very small in relation to body size; coxa unmodified; trochanter with blunt ventral projection; femur with retrolatero-ventral apophysis directed toward ventrally and distally, without prolateral modification; prolateral femur-patella joint only slightly shifted toward ventrally; tarsus with few slightly stronger hairs dorsally (partly lost); procursus very simple, slender distal part curved toward dorsally, without hinge ( Figs. 851–852View FIGURES 850 – 855); bulb with weakly sclerotized conical embolus ( Fig. 853View FIGURES 850 – 855). Legs without spines and curved hairs, with few vertical hairs (most hairs missing), retrolateral trichobothrium on tibia 1 at 1.5 %; prolateral trichobothrium present on all tibiae. Gonopore apparently with two epiandrous spigots (not confirmed by SEM).

Female. In general similar to male; clypeus unmodified. Tibia 1: 11.5. Epigynum very small relative to abdomen ( Fig. 843View FIGURES 842 – 849), consisting of anterior sclerotized arc and posterior plate projecting into and largely filling this arc ( Figs. 848View FIGURES 842 – 849, 854View FIGURES 850 – 855); anteriorly with pair of membranous bulges arising medially and bent toward laterally, each filled with lamellar structures reminding of book-lung lamellae ( Fig. 855View FIGURES 850 – 855; book-lungs situated more laterally and apparently not connected to these lamellae); internal genitalia as in Figs. 849View FIGURES 842 – 849 and 855View FIGURES 850 – 855.

Distribution. Known from type locality only ( Fig. 293View FIGURE 293).