Stephanopis rufiventris Bradley, 1871

Machado, Miguel, Teixeira, Renato Augusto & Milledge, Graham A., 2019, On the Australian Bark Crab Spider Genus Stephanopis: Taxonomic Review and Description of Seven New Species (Araneae: Thomisidae: Stephanopinae), Records of the Australian Museum 71 (6), pp. 217-276: 265-266

publication ID

http://doi.org/ 10.3853/j.2201-4349.71.2019.1698

publication LSID

lsid:zoobank.org:pub:7EDBAB7F-0E3B-47D7-AA29-0906728ADA05

persistent identifier

http://treatment.plazi.org/id/26714D71-FF81-FFC7-07B8-FA07FC4FF8D0

treatment provided by

Felipe

scientific name

Stephanopis rufiventris Bradley, 1871
status

 

Stephanopis rufiventris Bradley, 1871  

Fig. 41 View Figure 41

Stephanopis rufiventris Bradley, 1871: 237   .

Type material examined. Holotype ♀, OUMNH 618, Tia (40 km east of Walcha), New South Wales, [31°12'S 151°48'E], Australia. GoogleMaps  

Other material examined. Queensland: AMS KS.53360, 1♀, Kenilworth State Forest , 26°42'21"S 152°31'41"E, G. Milledge, 7 May 1998 GoogleMaps   . New South Wales: AMS KS.108723, 1♀, Vittoria ( Bathrust ), 33°27'S 149°20'E, C. Chadwick, 1 October 1967 GoogleMaps   ; AMS KS.73311, 1♀, Maroota State Forest , 33°31'S 150°59'E, G.A. Webb, 2 November 1979 GoogleMaps   . Victoria: AMS KS.108722, 4♀♀, Eltham , 37°43'S 145°09'E, C. Chadwick GoogleMaps   & R. E. Mascord , 2 January 1968   .

Diagnosis. Females of S. rufiventris   resemble those of S. cambridgei   in having an elongated body, predominantly orange colouration, striped legs ( Fig. 41A View Figure 41 ) and external genitalia with shallow atrium and copulatory ducts hidden by the lateral folds of the epigynal plate ( Fig. 41C View Figure 41 ). However, S. rufiventris   can be distinguished by its more flattened prosoma ( Fig. 41B View Figure 41 ) with shorter dark stripes, restricted to the median portion and sides of the cephalic area instead of long longitudinal marks extended until the PLE. Their epigynal plate is thicker, with sclerotized folds that are joined anteriorly forming a horse-shoe-shaped structure ( Fig. 41C View Figure 41 ) instead of the pair of lateral pockets observed in females of S. cambridgei   . The spermathecae are characteristically positioned on the sides and bear glandularheads on their top; the anterior chambers are rounded and medially positioned ( Fig. 41D View Figure 41 ).

Description. Female (AMS KS.108722): Anterior eye row recurved and posterior straight, prosoma flattened, predominantly orange with two pairs of longitudinal cephalic stripes (one on the median area and one on the sides) ( Fig. 41A and B View Figure 41 ); cephalic prominence absent. Legs orange with darker distal markings on the femora and metatarsi and proximal ones on tibiae. Opisthosoma obovate, slightly concave on its anterior border, presenting a median reentrance close to the anal region and three pairs of well-developed dark-brown muscular sigilla on the dorsum ( Fig. 41A View Figure 41 ).

Measurements: eye diameters and interdistances: AME 0.08, ALE 0.15, PME 0.13, PLE 0.13, AME–AME 0.12, AME–ALE 0.07, PME–PME 0.14, PME–PLE 0.17, MOQ length 0.36, width 0.32; leg formula: 1-2-4-3: leg I—femur 2.33/ patella 1.06/ tibia 2.19/ metatarsus 1.11/ tarsus 0.90/ total 7.59; II—2.30/ 1.02/ 2.12/ 1.09/ 0.90 7.43; III—1.56/ 0.90/ 1.49/ 1.05/ 0.88/ 5.88; IV—2.17/ 1.00/ 1.70/ 1.04/ 0.90/ 6.81. Total body length 8.39; prosoma length 3.71, width 3.46; opisthosoma length 4.68; clypeus height 0.28; sternum length 1.61, width 1.48; gnathocoxae length 0.72, width 0.33; labium length 0.50, width 0.52.

Male: Unknown.

Distribution. Queensland, New South Wales and Victoria, Australia ( Fig. 42 View Figure 42 ).

R

Departamento de Geologia, Universidad de Chile

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Araneae

Family

Thomisidae

Genus

Stephanopis

Loc

Stephanopis rufiventris Bradley, 1871

Machado, Miguel, Teixeira, Renato Augusto & Milledge, Graham A. 2019
2019
Loc

Stephanopis rufiventris

Bradley, H. B. 1871: 237
1871