Zatavua madagascariensis, (FAGE, 1945), 2003

Huber, Bernhard A., 2003, Cladistic analysis of Malagasy pholcid spiders reveals generic level endemism: Revision of Zatavua n. gen. and Paramicromerys Millot (Pholcidae, Araneae), Zoological Journal of the Linnean Society 137 (2), pp. 261-318 : 280-283

publication ID

https://doi.org/ 10.1046/j.1096-3642.2003.00046.x

persistent identifier

https://treatment.plazi.org/id/03F987F6-FFEB-FFAB-FF33-0B8A34A8F8A3

treatment provided by

Carolina

scientific name

Zatavua madagascariensis
status

comb. nov.

ZATAVUA MADAGASCARIENSIS ( FAGE, 1945) View in CoL

N. COMB. ( FIGS 25 View Figures 19–28 , 85, 86 View Figures 81–86 , 89, 90 View Figures 87–90 )

Spermophora madagascariensis Fage, 1945: 303 , fig. 1(a)–(d).

Types. One male, 3 females and 1 juvenile syntypes from grotte d’Andoharano (about 22∞50¢S, 43∞40¢E), Manombo valley , Toliara, Madagascar; collection date unknown (M. R. Decary), in MNHN (MP AR 10389) .

Diagnosis. Very closely related to Z. isalo , with almost identical palps (cf. Figs 81 and 82 View Figures 81–86 ), but with male cheliceral apophyses and pockets on epigynum less widely spread. This species might be a senior synonym of Z. fagei (Millot) , which was collected by the same collector but not within the cave of Andoharano but apparently outside (‘région de la grotte d’Andoharano’, Millot, 1946).

Male (syntype). Total length 2.8, carapace width 1.4. Legs 1 and 2 missing (leg 1 according to original description 2.8 cm [mm was a lapsus!]), tibia 3: 3.3, tibia 4: 5.0. Habitus as in Z. isalo (cf. Figs 11 and 12 View Figures 1–18 ). Carapace pale ochre-yellow with pair of slightly darker marks parallel to lateral margins; sternum whitish with heart-shaped ochre yellow mark; legs pale ochre-yellow, with slightly darker rings on femora and tibiae (subdistally) and in patella area; opisthosoma monochromous grey. Ocular area elevated and clearly separated from carapace; distance PME-PME 100 Mm; diameter PME 100 Mm; distance PME-ALE 30 Mm. Thoracic furrow distinct but shallow. Sternum wider than long (0.88/0.72). Clypeus unmodified. Chelicerae as in Figures 85 and 86 View Figures 81–86 , without modified hairs on tips of apophyses; distance between tips of apophyses 0.45. Palps as in Z. isalo , but flat cuticular flap retrolaterally on procursus (‘f’ in Fig. 82 View Figures 81–86 ) narrower in present species. Legs without spines, without curved hairs, few vertical hairs (most hairs missing, however).

Female. In general similar to male. Tibia 1 in a syntype: 7.3. Epigynum as in Figures 25 View Figures 19–28 and 89 View Figures 87–90 ; distance between pockets 0.34. Dorsal view as in Fig. 90 View Figures 87–90 .

Distribution. Known only from type locality (Map 1).

Material examined. MADAGASCAR: Toliara: Manombo valley : types above .

ZATAVUA MAHAFALY , NEW SPECIES

( FIGS 5, 6 View Figures 1–18 , 27 View Figures 19–28 , 91–95 View Figures 91–95 )

Type. Male holotype from near Eloetse , by Lac Tsimanampetsoa (24∞10¢S, 43∞45¢E), Mahafaly, Toliara, Madagascar; September 15–16, 1992 (V. & B. Roth), in back of shelter cave, shaded to dark; in CAS .

Etymology. Named for the type locality. The specific name is a noun in apposition.

Diagnosis. Large species with globular opisthosoma, easily distinguished from known congeners by the widely spread male cheliceral apophyses ( Fig. 93 View Figures 91–95 ), the globular male palpal tibia ( Figs 91 and 92 View Figures 91–95 ), the massive curved procursus ( Fig. 92 View Figures 91–95 ), and the wide epigynum ( Fig. 27 View Figures 19–28 ).

Male (holotype). Total length 4.8, carapace width 2.1. Leg 1: 50.2 (13.5 + 0.8 + 14.0 + 20.2 + 1.7), tibia 2: 9.5, tibia 3: 6.5, tibia 4: 8.5; tibia 1 L/d: 78. Habitus as in Figures 5 and 6 View Figures 1–18 . Carapace pale ochre with light brown mark posteriorly; sternum pale ochre with dark margin. Legs ochre to light brown, patella area darker. Opisthosoma pale ochre. Ocular area slightly elevated, not clearly separated from carapace; distance PME-PME 150 Mm; diameter PME 110 Mm; distance PME-ALE 40 Mm. Thoracic furrow absent, only shallow indentation behind ocular area. Clypeus not modified. Sternum wider than long (1.3/1.0). Chelicerae as in Figure 93 View Figures 91–95 , proximal apophyses directed backwards as in Z. voahangyae (cf. Fig. 62 View Figures 60–65 ), distal apophyses widely spread, with sclerotized teeth at tip, without modified hairs; distance between outer tips of apophyses 1.95. Palps as in Figures 91 and 92 View Figures 91–95 , trochanter with small sclerotized hump ventrally, femur with distinct hump proximo-ventrally, tibia almost globular, procursus massive with complex tip. Embolus (‘e’ in Fig. 91 View Figures 91–95 ) partly sclerotized, with subdistal conical projection but without spine. Legs without spines, without curved hairs, few vertical hairs; retrolateral trichobothrium of tibia 1 at 5%; tarsus 1 with>10 very indistinct pseudosegments.

Female. In general similar to male, but sternum with light brown marks. Tibia 1: 11.5, tibia 2: 7.3, tibia 3: 5.5, tibia 4: 7.3. Epigynum as in Figures 27 View Figures 19–28 and 94 View Figures 91–95 ; at lateral extremes with sclerotized ridges (‘r’ in Fig. 94 View Figures 91–95 ; distance between ridges 1.62). Dorsal view as in Fig. 95 View Figures 91–95 .

Distribution. Known only from type locality (Map 1).

Material examined. MADAGASCAR: Toliara: Mahafaly : type above, together with 1♀, same data .

ZATAVUA KELY , NEW SPECIES

( FIGS 28 View Figures 19–28 , 96–101 View Figures 96–101 )

Type. Male holotype from English Camp (12∞54¢34≤S, 49∞06¢36≤E), Antsiranana, Madagascar; August 20– 26, 1992 (V. & B. Roth); in CAS .

Etymology. ‘Kely’ is Malagasy for small and refers to the size of this species. The word is here used as noun in apposition.

Diagnosis. Small species with globular opisthosoma, easily distinguished from known congeners by the widely spread male cheliceral apophyses ( Fig. 99 View Figures 96–101 ; Z. mahafaly has similar chelicerae but is much larger), the simple spine-like procursus (‘pr’ in Fig. 97 View Figures 96–101 ), and the epigynum with lateral sclerotized structures (‘r’ in Fig. 101 View Figures 96–101 ; receptacles?) shining through cuticle ( Fig. 28 View Figures 19–28 ).

Male (holotype). Total length 1.3, carapace width 0.6. Leg 1: 7.7 (2.0 + 0.2 + 2.2 + 2.6 + 0.7), tibia 2: 1.2, tibia 3: 0.8, tibia 4: 1.5; tibia 1 L/d: 37. Habitus similar to Z. isalo (cf. Figs 11 and 12 View Figures 1–18 ). Prosoma and legs ochre-yellow. Opisthosoma ochre-grey, with slightly darker spots shining through cuticle. Ocular area slightly elevated, not clearly separated from carapace; distance PME- PME 50 Mm; diameter PME 50 Mm; distance PME-ALE 20 Mm. Thoracic furrow present, but shallow and indistinct. Clypeus not modified. Sternum wider than long (0.44/0.32). Chelicerae as in Figures 98 and 99 View Figures 96–101 , distal apophyses widely spread, without modified hairs but striated cuticle at tips of apophyses; distance between tips of apophyses 0.45. Palps as in Figures 96 and 97 View Figures 96–101 ; trochanter with small conical projection ventrally, procursus very simple, ending in sclerotized spine that is hidden in fold of embolus (‘e’ in Fig. 97 View Figures 96–101 ). Embolus mostly sclerotized, with curved terminal apophysis (‘a’ in Fig. 96 View Figures 96–101 ); sperm duct apparently opens at basis of apophysis. Legs without spines, without curved hairs, few vertical hairs; retrolateral trichobothrium of tibia 1 not seen; tarsus 1 with>10 pseudosegments (only distally fairly distinct).

Female. In general similar to male. Tibia 1: 1.8 in both females seen. Epigynum as in Fig. 28 View Figures 19–28 , protruding; with pair of lateral pockets (‘p’ in Fig. 101 View Figures 96–101 ) and oval structures that shine through cuticle ( Figs 28 View Figures 19–28 and 100 View Figures 96–101 ). Distance between pockets 0.35.

Distribution. Known only from type locality (Map 1).

Material examined. MADAGASCAR: Antsiranana: English Camp : type above, together with 2♀ and some juveniles, same data .

MNHN

Museum National d'Histoire Naturelle

CAS

California Academy of Sciences

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Pholcidae

Genus

Zatavua

Loc

Zatavua madagascariensis

Huber, Bernhard A. 2003
2003
Loc

Spermophora madagascariensis

Fage L 1945: 303
1945
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