Lepthercus haddadi, Ríos-Tamayo & Lyle, 2020

Ríos-Tamayo, Duniesky & Lyle, Robin, 2020, The South African genus Lepthercus Purcell, 1902 (Araneae: Mygalomorphae) phylogeny and taxonomy, Zootaxa 4766 (2), pp. 261-305 : 292-295

publication ID

https://doi.org/ 10.11646/zootaxa.4766.2.2

publication LSID

urn:lsid:zoobank.org:pub:BA570D47-FE77-446C-B000-9208C9A6E957

DOI

https://doi.org/10.5281/zenodo.3803484

persistent identifier

https://treatment.plazi.org/id/03F11B20-FFC1-FFAA-8EE8-3EBFFBF0D3B9

treatment provided by

Carolina

scientific name

Lepthercus haddadi
status

sp. nov.

Lepthercus haddadi sp. nov.

( Figs. 2A, F, G View FIGURE , 19 View FIGURE A–K, 20A–C, 24) http://zoobank.org/ urn:lsid:zoobank.org:act:4ADBA1C9-2B18-41FA-B2AC-2A597B8D8B38

Material examined. Type material: Holotype ♂. SOUTH AFRICA: Western Cape Province, De Hoop Nature Reserve, Koppie Alleen cottage, De Hoop Vlei, S shore (34°17′S 20°17′E), 25.iii.2005, Haddad, C. leg.,. ( NCA 2007 /1486) GoogleMaps .— Paratype. SOUTH AFRICA: De Hoop Nature Reserve, Koppie Alleen cottage (34°17′S 20°17′E), 26.viii.2007. Haddad, C. leg., 1♀ ( NCA 2007/3847): same data as the male holotype, 1 ♀ (subadult), 1 ♂, 1 imm. ( NCA 2007/1486).

Other material examined: SOUTH AFRICA: Western Cape Province: Bredasdorp Distr, Duinehuisie Guest Farm, Farm Rondekop; ca. 12 km SE Bredasdorp; east of farm buildings (34°35′37,12″S 20°9′15.31″E), 23.viii.2017, Engelbrecht, I., N. Calver, D. Calver, P. Bester, A. Cilliers. leg., 1 ♂ ( NCA 2019/40).

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Etymology. The specific epithet is a patronymic in honor of Dr Charles Haddad who collected the type specimens and for his contribution to arachnology in South Africa.

Diagnosis. Males of L. haddadi sp. nov., can be recognized inside of the “Group haddadi” by a very robust, darkly coloured tibia I ( Fig. 19J, K View FIGURE ) with a robust spur; and by a more elongated copulatory bulb ( Fig. 19 View FIGURE G–I). Females can be distinguished from L. engelbrechti sp. nov., by the shape of their spermathecae with a longer stalk ( Fig. 20D View FIGURE ).

Description. Male holotype (NCA 2007/1486, Fig. 19 View FIGURE A–K). Total length 15.95. Carapace ( Fig. 19A View FIGURE ): length 6.09, width 4.71, with lateral dark marginal bristles, with a little pubescence. Cephalic region: length 3.80; clypeus almost absent, with 6 bristles on the edge, 2 bristles in front of the OQ and 4 between the PME, line of bristles until de fovea. Fovea: width 0.45, almost straight (slightly recurved). Ocular measurements: AME 0.16, ALE 0.29, PME 0.20, PLE 0.26, OQ length 0.57, 1.03 width; AME–ALE 0.07, PME–PLE 0.04, AME–PME 0.09, ALE–PLE 0.08, AME–AME 0.10, OMP–OMP 0.39. Chelicerae: length 3.53, width 1.93, with dark dorsal–anterior bristles, intercheliceral tumescence small, well-marked with setae ( Fig. 19D View FIGURE ). Fang groove with 8 promarginal teeth and 14 mesobasal denticles. Labium: length 0.45, width 0.81. Maxillae: length 1.98, width 0.85, with 70 cuspules on inner corner, prolateral face slightly curved, without soft area, with long uniformly distributed hairs, serrula present ( Fig. 2F View FIGURE ). Sternum ( Fig. 19C View FIGURE ): length 3.20, maximum width 2.56. Abdomen ( Fig. 19B View FIGURE ): length 6.32, covered by dark hair and bristles. PMS: length 0.69; PLS: length of basal:medial:apical segments 1.33:1.04:1.64; total length 4.01. Lengths of legs and palp: I: 4.20, 2.68, 2.85 (width/length: 0.69), 2.44, 1.70, 13.87. II: 4.09, 2.47, 2.52, 2.57, 1.66, 13.31. III: 3.68, 1.93, 2.18, 3.06, 1.59, 12.44. IV: 4.44, 2.24, 3.05, 3.85, 1.77, 15.35. Palp: 2.28, 1.20, 1.69, —, 0.91, 6.08.

Chaetotaxy: Leg I: femur, 1-1-1-1 d (centrals), 1 P A; patella, 1 P A; tibia, 1-1 P, 1-2-1 V, very swollen, a strong cuticular spur, with an apical curved megaspine and a strong curved spine near of the base of the megaspine ( Fig. 19K View FIGURE ); metatarsus, 1-1-2 V, presence of a protuberance (nearly two–thirds of the segment from its base), covered with numerous black blunt spinules ( Fig. 19J View FIGURE ); tarsus, 0. Leg II: femur, 1-1-1-1 d, 1-1 PA; patella, 1-1 P; tibia, 1-1 P, 1-1-3 V; metatarsus, 1-1-1 P, 2-3-3 V; tarsus, 0. Leg III: femur, 1-3-2-3 D; patella, 1-1 P, 1 R; tibia, 1-1 P, 1-1 D, 1-1 R, 2-2-2 V; metatarsus, 1-1-1-1 P, 1-1-1 D-P, 1-1-1-1 D-R, 2-3-3 V; tarsus, 0. Leg IV: femur, 1-1-1-1 D; patella, 1 R; tibia, 1-1 P, 1-1 R, 2-2-2 V; metatarsus, 1-1-1-1 P, 1-1-1 D-P, 1-2-1-1 D-R, 2-1-2-3 V; tarsus, 0. Palp ( Fig. 19E, F View FIGURE ): femur, 1-1-1-1 d, 1 PA; patella, 1 pa; tibia, 1 R, (width/length: 0.68); tarsus, 0.

Scopulae: Metatarsi: I, sparse, around the black blunt spinules; II, dense (1:2 A), more abundant in the anterior part, divided by fine setae; III–IV, 0. Tarsi: I–II, dense, uniformly distributed throughout the segment; III, dense, uniformly distributed and divided by a narrow band of setae; IV, sparse, uniformly distributed and divided by a wide band of setae. Trichobothria: Tibiae: I 10-11; II 10-10; III 10-11; IV 12-11. Metatarsi: I (6)1(2)1(4)1; II (3)1(2)1(4)1; III (4)1(1)1(3)1(6)1; IV (4)1(3)1(6)1. Tarsi: I 13; II 12; III 11; IV 13. Preening combs: metatarsus: II, 4 PV; III, 2 PV-3 RV; IV, 2 PV-3 RV. Copulatory bulb: long, with a curved embolus tapering gradually ( Fig. 19 View FIGURE G–I), spermatic duct slightly curved. Color: Overall dark brown–reddish (chelicerae, Metatarsus–Tarsus I darker). Abdomen mottled with light spots distributed in all the dorsum; spinnerets orange, ventrally dark.

Female paratype (NCA 2007/3847, Fig. 20 View FIGURE A–D). Total length 15.46. Carapace ( Fig. 20A View FIGURE ): length 5.18, width 3.61. Cephalic region: length 3.24, clypeus small (almost absent) with 6 marginal bristles; 7 bristles in front of the OQ and 6 between the PME. Fovea: width 0.28, almost straight (slightly procurved). Ocular measurements: AME 0.11, ALE 0.29, PME 0.19, PLE 0.22, OQ length 0.50, width 0.87; AME–ALE 0.06, PME–PLE 0.04, AME–PME 0.07, ALE–PLE 0.06, AME–AME 0.10, PME–PME 0.29. Chelicerae ( Fig. 20C View FIGURE ): length 3.08, width 1.95; with dorsal–retrolateral dark bristles. Fang groove with 8 promarginal teeth and 12 mesobasal denticles. Labium: length 0.41, width 0.80 with one cuspule. Maxillae: length 1.87, width 0.91, with 86 cuspules on inner corner, prolateral face slightly curved, soft area long, with long uniformly distributed hairs, serrula present on anterior inner corner ( Fig. 2G View FIGURE ). Sternum ( Fig. 20B View FIGURE ): length 2.47, maximum width 2.17. Abdomen ( Fig. 20A View FIGURE ): length 7.42, with small bristles in the dorsum. PMS: length 0.77; PLS: length of basal:medial:apical segments 1.26:0.79:1.45; total length 3.50. Lengths of legs and palp: I: 3.42, 2.32, 2.26, 1.74, 1.21, 10.95. II: 3.05, 1.99, 1.88, 1,63, 1.14, 9.69. III: 2.71, 1.59, 1.50, 2.12, 1.10, 9.02. IV: 3.37, 2.05, 2.43, 2.92, 1.21, 11.98. Palp: 2.56, 1.55, 1.44, —, 1.53, 7.08.

Chaetotaxy: Leg I: femur, 1-1-1-1-1-1-1 d, 1 PA; patella, 0; tibia, 1-3 v; metatarsus, 2-1-2 V; tarsus, 0. Leg II: femur, 1-1-1-1-1-1-1-1 d, 1-1 PA; patella, 1 pa; tibia, 1-1 P, 1-2 V; metatarsus, 2-2-3 V; tarsus, 0. Leg III: femur, 1-1-1-1 d, 1-1 RA; patella, 1-1 P, 1 R; tibia, 1-1 P, 1-1 D, 1 R, 2-2-3 V; metatarsus, 1-1-1 P, 1-1-1 D-P, 1-1-1 D-R, 2-3-3 V; tarsus, 0. Leg IV: femur, 1-1-1-1-1-1 d; patella, 1 P; tibia, 1-1 P, 2-2-2 V; metatarsus, 1-1-1 P, 1-1-1 D-P, 1-1-1 D-R, 1-1-1 R, 2-3-3 V; tarsus, 0. Palp: femur, 1 pa; patella, 0; tibia, 1p, 2-2v, 3 VA; tarsus, 2 VB.

Scopulae: Metatarsi: I, dense, uniformly distributed, divided by setae; II, dense (1:2A), divided by setae; III–IV, without scopula. Tarsi: I, dense, uniformly distributed; II dense, uniformly distributed, divided by setae; III–IV, sparse, uniformly distributed and divided by a wide band of setae (IV wider). Trichobothria: Tibiae: palp 9-9; I 11-10; II 10-10; III 9-10; IV 10-11. Metatarsi: I (6)1(2)1(3)1; II (6)1(2)1(5)1; III (4)1(2)1(7)1; IV (5)1(1)1(4)1(6)1. Tarsi: palp 11; I 13; II 12; III 12; IV 13. Preening combs ( Fig. 2A View FIGURE ): metatarsus: II 4 PV; III 4 PV–3 RV; IV 3 PV–2 RV. Spermathecae: small, tubulars and curved ( Fig. 20D View FIGURE ). Color: Overall orange–yellowish (chelicerae darker). Abdomen mottled with light spots distributed in all the dorsum; spinnerets orange, ventrally dark.

Distribution. Eastern and Western Cape Provinces, South Africa ( Fig. 22B View FIGURE ).

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Nemesiidae

Genus

Lepthercus