Parabomis megae, Dippenaar-Schoeman & Foord, 2020

Dippenaar-Schoeman, Anna S. & Foord, Stefan H., 2020, Revision of the Afrotropical crab-spider genus Parabomis Kulczyński, 1901 (Araneae: Thomisidae), Zootaxa 4899 (1), pp. 161-174 : 168-169

publication ID

https://doi.org/10.11646/zootaxa.4899.1.8

publication LSID

lsid:zoobank.org:pub:A0C2249D-1099-4F9E-80F2-04A3770E8744

DOI

https://doi.org/10.5281/zenodo.4400908

persistent identifier

https://treatment.plazi.org/id/03CF87B1-FFAE-2748-76BF-D9C8FE45F817

treatment provided by

Plazi

scientific name

Parabomis megae
status

sp. nov.

Parabomis megae   sp. nov.

Figures 15 – 20 View FIGURES 15–20

Etymology. Named in honour of Ms Meg Cumming (Harare, Zimbabwe), in recognition of her contribution to our knowledge of Zimbabwean spiders.

Diagnosis. The species is distinguished from other congeners by the male palp having the RTA straight, with the apex directed dorsally, while directed laterad in others, except for P. elsae   sp. nov. It differs from P. elsae   sp. nov. by the sharply pointed tip of the apex ( Fig. 18 View FIGURES 15–20 ). Parabomis megae   sp. nov. resembles the female of P. elsae   sp. nov. in the shape of the epigyne, but the colour differs, being uniform in P. megae   sp. nov. and strongly mottled in P. elsae   sp. nov. ( Fig. 19 View FIGURES 15–20 ).

Description. Male (holotype). Measurements: TL 1.90; CL 0.95; CW 1.03. Legs: I 1.44 (0.52, 0.13, 0.30, 0.27, 0.22); II 1.44 (0.63, 0.22, 0.28, 0.20, 0.11); III 1.09 (0.34, 0.12, 0.32, 0.21, 0.10); IV 1.32 (0.47, 0.15, 0.32, 0.19, 0.19). Carapace dark brown ( Fig. 15 View FIGURES 15–20 ); eyes circled with black; chelicerae dark brown; mouthparts yellowish brown; palp dark brown; carapace slightly wider than long; strongly granulated, bearing numerous small tubercles, each with translucent seta. Sternum brown; granulose. Eyes as for genus. Legs: coxae, trochanters and tibiae brown, with blackish hue; femora I-IV dark brown, with femora I and II usually darker than rest; patellae yellowish brown; tibiae, metatarsi and partly tarsi of legs I and II clothed with numerous fine erect setae. Abdomen dorsum white with brown hue, shield-like with scattered black spots. Male palp with RTA straight, tip directed dorsally and apex pointed ( Fig. 18 View FIGURES 15–20 ).

Female. Measurements: TL 3.2; CL 1.1; CW 1.4. Legs: I 1.83 (0.67, 0.29, 0.42, 0.25, 0.27); II 1.84 (0.61, 0.28, 0.43, 0.24, 0.28); III 1.61 (0.41, 0.22, 0.26, 0.12, 0.70); IV 1.71 (0.55, 0.46, 0.27, 0.31, 0.12). Carapace fawn, in some specimens darker laterally ( Figs 16-17 View FIGURES 15–20 ); strongly granulated, bearing numerous small tubercles, each with translucent seta; eye region infused with white; eyes sometimes circled with black; chelicerae creamish white. Sternum granulated, bearing tubercles with seta. Legs creamish white, with distinct white bands at joints; femora frequently darker. Abdomen fawn to white, with scattered dark setae giving it spotted appearance; depressions on dorsum darker, bearing two brownish markings ( Fig. 16 View FIGURES 15–20 ). Epigyne with atrium oval ( Fig. 19 View FIGURES 15–20 ); spermathecae with short ducts ( Fig. 20 View FIGURES 15–20 ).

Type material. Holotype ³: ZIMBABWE: Doddieburn Dam , Doddieburn Ranch, 21°28’S, 29°24’E, leg. J. Minshull, 12.XII.1985 ( NMZ / A4208 a). GoogleMaps  

Paratypes: ZIMBABWE: Doddieburn Dam, Doddieburn Ranch   , 21°28’S, 29°24’E, leg. J. Minshull, 12.XII.1985, 1♀, 3³, 4imm. ( NMZ / A4208 b); Tshowe River rapids, Matetsi Safari Area GoogleMaps   , 18°31’S, 28°40’E, leg. J. Minshull, 6.XII.1988, 1³ ( NMZ A6916 ); Walmer Drive , Harare GoogleMaps   , 17°49’S, 31°05’E, leg. M. Cumming, 14. VI GoogleMaps   .2004 (spider ballooning), 1♀ ( NCA 2012 /327); Same locality data   , leg. M. Cumming, 15.I.2004 (sweeping grass and herbs in garden), 1♀, 3imm. ( NCA 2012 /326); Same locality data   , leg. M. Cumming, 1. III .2004   , 1♀ ( NCA 2009 / 258).

Other material examined. ZIMBABWE: Humani Ranch , Store Camp, 20°29’S, 32°15’E, leg. Falcon College, 6. IV.1987, 1imm. ( NMZ A 5882 ) GoogleMaps   ; Doddieburn Dam , Doddieburn Ranch, 21°28’S, 29°24’E, leg. E. Nyathi, 20. IV.1986, 2 imm. ( NMZ / A4661 ) GoogleMaps   ; Same locality, leg. J. Minshull, 11.XII.1985, 1 imm. ♀ ( NMZ 4227 )   ; Chelo Farm Homestead , 2029A3, leg. F. Nyathi, 5.X.1988, 5 imm. ( NMZ 715 )   , 4 imm. ( NMZ / A7190 )   ; Namakukwe , Zambezi confluence, 17°51’S, 25°23’E, leg. Falcon College, 26.VIII.1986, 1 imm. ( NMZ 4794 ) GoogleMaps   ; Sabi-Lundi confluence, Gomarezhou National Park, 21°23’S, 33°50’E, leg. J. Minshull, 21. IV.1985, 1 imm. ( NMZ 3289 ) GoogleMaps   ; Tshowe River rapids, Matetsi Safari Area 18°31’S, 28°40’E, leg. J. Minshull, 4.XII.1988 ( NMZ 6895 ) GoogleMaps   ; Katombora Campsite, 17°50’S, 25°24’E, leg. Falcon College, 1.X.1986, 1 imm. ( NMZ 4720 ) GoogleMaps   , 1 imm. NMZ 5040, 1 imm NMZ 5079, 1 imm. NMZ 5086   ); 1.5 km NW of Kazuma Forestry camp, 1825B3, leg. Falcon College, 15. IV.1988, 2 imm. ( NMZ / A 6704 )   ; Farm 2 km E. Glenmore, 2028C, leg. F.Nyathi, 28.IX.1988, 1 imm. ( NMZ / A 7094 )   ; Sengwa Plot , leg. M. Cumming, 2.XII.2002 (beating Trichelias tree), 1³ ( NCA 2009 /456)   .

Distribution. Known only from Zimbabwe ( Fig. 32 View FIGURES 31–32 ).

Biology/Habitat. Specimens were sampled sweeping grass and herbs. Most of the adult specimens were sampled from December to March.

VI

Mykotektet, National Veterinary Institute

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Thomisidae

Genus

Parabomis