Thyene bilineata Lawrence, 1927, Lawrence, 1927

Azarkina, Galina N. & Foord, Stefan H., 2013, Redescriptions of poorly known species of jumping spiders (Araneae: Salticidae) from South Africa and Namibia, Zootaxa 3686 (2), pp. 165-182: 176-179

publication ID

http://dx.doi.org/10.11646/zootaxa.3686.2.3

publication LSID

lsid:zoobank.org:pub:3166E584-2758-491D-BB60-A3921271E08C

persistent identifier

http://treatment.plazi.org/id/6958143B-FFBA-A53C-90E0-F8FCDFC3FE9C

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Plazi

scientific name

Thyene bilineata Lawrence, 1927
status

 

Thyene bilineata Lawrence, 1927  

Figs 36 View FIGURE 36 , 54– 62 View FIGURES 54 – 56 View FIGURES 57 – 62

Thyene bilineata Lawrence, 1927: 64   , pl. 2, fig. 51 (Ƥ, examined).

Thyene bilineata striatipes Lawrence, 1927: 65   (Ƥ, examined) syn. n.

Type material: Lectotype, Ƥ designated here ( SAM, #B 6938) South West Africa, Kunene R., March 1923 [= Namibia, Kunene, Kunene River, ca. 17 °05'S, 12 ° 10 'E, 0 3.1923 (Collector unknown)]. Paralectotypes: 2 Ƥ ( SAM, #B 6114) South West Africa, Ongandjera, Ovamboland [= Namibia, Omusati, Ongandjera, 17 ° 53 'S, 15 °04'E, 0 3.1923 (Collector unknown)]; 1 Ƥ ( SAM, #B 6760) South West Africa, Oncka, March 1923 [= Namibia, Ohangwena, Onka, ca. 17 ° 40 'S, 16 °00'E, 0 3.1923 (Collector unknown)]; Syntipes ( Thyene bilineata striatipes   ): 4 Ƥ ( SAM, #B 6146) South West Africa, Kunene R., C 1712 BC, March 1923, R.F. Lawrence [= Namibia, Kunene, Kunene River, ca. 17 ° 15 'S, 12 ° 30 'E, 0 3.1923 (R.F. Lawrence)].

Other material: Namibia: 1 juv. ( SAM, #B 6176, marked as Ƥ among types) Kunene, Kunene River, ca. 17 °05'S, 12 ° 10 'E, 0 3.1923 (Collector unknown); RSA: 1 Ƥ (NCA 2012 / 2715) Gauteng, Pretoria/Tswane, Roodeplaatdam Nature Reserve, 26 ° 21 'S, 28 ° 21 'E, sweepnetting, grass and shrubs, 17.10. 1983 (A. van den Berg, C. Schulz); 1 Ƥ (NCA 2012 / 2716) Gauteng, Pretoria/Tswane, Roodeplaatdam Nature Reserve, 26 ° 21 'S, 28 ° 21 'E, sweepnetting, grass, 25.10. 1982 (A. van den Berg, I. van Rooyen); 1 Ƥ (NCA 2012 / 2717) Gauteng, Pretoria/ Tswane, Roodeplaatdam Nature Reserve, 26 ° 21 'S, 28 ° 21 'E, sweepnetting and beating, grass and trees, 25.01. 1983 (A. van den Berg, T. Marren); 1 Ƥ (NCA 83 / 24) Gauteng, Pretoria/Tswane, Roodeplaatdam Nature Reserve, 26 ° 21 'S, 28 ° 21 'E, sweepnetting, 9.03. 1982 (I. van Rooyen, T. Marren).

Diagnosis. The species differs from other Thyene   species by body coloration – two brown stripes on carapace and abdomen ( Fig. 59 View FIGURES 57 – 62 ). T. bilineata   is closely related to T. semiargentea (Simon, 1884)   . It differs by body coloration (cf. Wesołowska & Russell-Smith, 2000: figs 303 and 55–60) and the presence of simple spermathecae ( Fig. 55 View FIGURES 54 – 56 ), cf. Wesołowska & Russell-Smith, 2000: figs 305 – 305 and 53–54).

Description. Female (NCA 2012 / 2717): Carapace: 2.70 long, 2.30 wide, 1.40 high. Abdomen: 3.90 long, 2.50 wide. Eye field: 1.20 long, anterior 1.55 wide, posterior 1.60 wide. Cheliceral length 0.90. Clypeal height 0.20. Diameter of AME 0.55. Length of leg segments: I 1.50 +1.00+ 1.10 + 0.80 + 0.50; II 1.40 + 0.90 + 0.80 + 0.70 + 0.50; III 1.90 +1.00+ 0.95 + 1.10 + 0.60; IV 1.70 + 0.80 + 1.10 + 1.10 + 0.60. Leg spination: I: Fm d 0-1 - 1-3; Tb v 0-2 - 2 - 1-2 ap or 0- 1 - 2 - 1-2 ap; Mt v 0-2 - 2 ap. II: Fm d 0-1 - 1-3; Tb v 1-2 - 2 ap or 1 - 1-2 ap; Mt v 2 - 2 ap. III: Fm d 0-1 - 2-4; Pt rt 1; Tb pr 1 - 1, rt 1 - 1 or 1 - 1 - 1, v 0- 0-2 ap; Mt pr and rt 1 - 0-2 ap, v 1 - 0-2 ap or 2 - 0-2 ap. IV: Fm d 0-1 - 1-2; Pt rt 1; Tb rt 1 - 1, v 0- 0- 2 ap; Mt pr 0- 0-2 ap, rt 1 - 0-2 ap; v 0- 0-2 ap. Carapace brownish-yellow to yellow, with two bands from PME to posterior rim of carapace, formed from sparse brown hairs ( Figs 59, 62 View FIGURES 57 – 62 ). Ocular area white-yellow, some specimens with brown spots in the middle part of ocular area that barely perceptible, covered with transparent iridescent scales. Eyes with black rings. Laterally ocular area with bunch of long dense bristles. Clypeus and cheeks yellow, with bands of white hairs on each cheek from AME to lateral sides of carapace ( Figs 58, 61 View FIGURES 57 – 62 ). Chelicerae yellow, covered with sparse yellow hairs. Sternum yellow. Abdomen whitish-grey-yellow. Ventrally with three brown bands from epigastric fold to spinnerets. Dorsum covered with white, transparent scales, and two broad brown bands. Spinnerets brownish-yellow. Book-lungs white-grey. All legs brownish-yellow, covered with sparse white and brown hairs. First pair of legs robust, larger than the rest. Femora I with transverse prolateral brown stripes. Palps yellow, covered with white hairs. Structure of epigyne and spermathecae as in Figs 54–55 View FIGURES 54 – 56 .

Male unknown.

Distribution. Namibia and Republic of South Africa.

Comments. We selected the lectotype because this specimen was drawn by Lawrence (Lawrence 1927). Thyene bilineata striatipes   epigyne’s differ slightly from other Thyene bilineata   epigynes. There are considerable intra- and interspecific variation in the epigynal shape of the genus Thyene   and we therefore do not recognise the subspecies and synonymize T. bilineata striatipes   with T. bilineata   .

SAM

South African Museum

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Salticidae

Genus

Thyene

Loc

Thyene bilineata Lawrence, 1927

Azarkina, Galina N. & Foord, Stefan H. 2013
2013
Loc

Thyene bilineata

Lawrence 1927: 64
1927
Loc

Thyene bilineata striatipes

Lawrence 1927: 65
1927