Stephanopis lata O. Pickard-Cambridge, 1869

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 : 253-254

publication ID	https://doi.org/ 10.3853/j.2201-4349.71.2019.1698
publication LSID	lsid:zoobank.org:pub:7EDBAB7F-0E3B-47D7-AA29-0906728ADA05
persistent identifier	https://treatment.plazi.org/id/26714D71-FF95-FFD3-0614-FA39FB45F84D
treatment provided by	Felipe
scientific name	Stephanopis lata O. Pickard-Cambridge, 1869
status

Treatment

Stephanopis lata O. Pickard-Cambridge, 1869 View in CoL

Figs 28–29 View Figure 28 View Figure 29

Stephanopis lata O. Pickard-Cambridge, 1869: 63 View in CoL , pl. 5, figs 42–43.—L. Koch, 1874: 498, pl. 38, fig. 2.— Hickman, 1967: 106, figs 177–179.

Type material examined. Holotype ♀, NHMUK 1844.40 About NHMUK (ex British Museum), Tasmania [41°27'S 145°58'E], Australia, deposited in the dry collection. GoogleMaps

Other material examined. Australia, Queensland: AMS KS.110434, 1♂, Eurimbula (southeast of Gladstone ), 24°11'S 151°50'E, M GoogleMaps . R. Gray & C. Horseman, March 1975 ; QM S25632 View Materials , 2♀♀, Curra , 26°4'0.012"S 152°34'59.88"E, P. Frater, 4 September 1993 GoogleMaps . New South Wales: AMS KS.108705, 1♀, Sydney ( Pittwater ), 33°38'S 151°18'E, J. Child, 13 June 1965 GoogleMaps ; AMS KS.121449, 1♀, Medlow Bath , 33°41'S 150°17'E GoogleMaps . Western Australia: AMS KS.108672, 1♀, Busselton , 33°39'S 115°20'E GoogleMaps . Tasmania: AMS KS.31442, 3♀♀, Cascades , 41°10'S 147°49'E GoogleMaps , V. V. Hickman , 26 May 1923 ; AMS KS.31443, 2♀♀, same data except 14 June 1948 ; AMS KS.10426,

1♀, Launceston , 41°27'S 147°10'E, F. Calverley, 1 February 1982; AMS KS GoogleMaps .31391, 1♀, Domain , 42°52'S 147°19'E, V GoogleMaps . V GoogleMaps . Hickman , 9 February 1970; AMS KS .31444, 1♀, same data except 2 December 1963; AMS KS .31449, 1♂, 1♀, same data except September 1958 .

Diagnosis. The trapezoid opisthosoma and set of dorsal projections on the anterior patellae and tibiae found in by both males and females of S. lata are also found in S. angulata and S. fissifrons , however, these features are more prominent in S. lata . Females of S. lata are similar to those of S. corticalis in having darker body colouration ( Fig. 28A View Figure 28 ), rough tegument with many irregular sized setiferous tubercles, dorsal leg projections occurring also on legs III and IV, and more robust aspect. However, females of S. lata can be distinguished by their extremely flattened epigynal plate with weakly developed lateral folds and slit-shaped CO perpendicularly positioned ( Fig. 28C View Figure 28 ). Males are diagnosed by their straight and acute RTA with truncated RTAvbr ( Fig. 29C View Figure 29 ).

Description. Female (AMS KS. 121449): Prosoma and legs entirely reddish dark-brown and bearing many stout and

254 Records of the Australian Museum (2019) Vol. 71 acute tubercles and projections ( Fig. 28A View Figure 28 ). Anterior eye row strongly recurved and posterior straight; cephalic prominence absent. Opisthosoma reddish-brown with clavated setae on its posterior region ( Fig. 28A View Figure 28 ). Spermathecae pear-shaped and glandular-heads fused to the pair of lobed anterior chambers ( Fig. 28D View Figure 28 ).

Measurements: eye diameters and interdistances: AME 0.14, ALE 0.26, PME 0.19, PLE 0.20, AME–AME 0.20, AME–ALE 0.17, PME–PME 0.36, PME–PLE 0.23, MOQ length 0.62, width 0.55; leg formula: 1-2-4-3: leg I—femur 4.90/ patella 2.39/ tibia 3.79/ metatarsus 2.15/ tarsus 1.24/ total 14.47; II—3.85/ 1.95/ 3.02/ 1.85/ 1.19/ 11.86; III—3.20/ 1.52/ 2.45/ 1.39/ 0.98/ 9.54; IV—3.54/ 1.50/ 2.39/ 1.28/ 0.92/ 9.63. Total body length 9.62; prosoma length 4.75, width 4.56; opisthosoma length 4.87; clypeus height 0.58; sternum length 2.12, width 1.97; gnathocoxae length 1.15, width 0.62; labium length 0.70, width 0.97.

Male (AMS KS.31449): Eye arrangement and disposition as in female ( Fig. 29B View Figure 29 ); prosoma and anterior legs predominantly reddish dark-brown ( Fig. 29A View Figure 29 ); tarsi I and femora III and IV partially dark-yellow. Opisthosoma squared, dark-yellow with borders, sides, heart sigilla and setae dark-brown ( Fig. 29A View Figure 29 ). Palpi bears a wide and short Pcym, well-developed PrsP and flexible embolus resting on an apically positioned tegular ridge ( Fig. 29A and B View Figure 29 ).

Measurements: eye diameters and interdistances: AME 0.09, ALE 0.22, PME 0.18, PLE 0.22, AME–AME 0.12, AME–ALE 0.08, PME–PME 0.18, PME–PLE 0.22, MOQ length 0.36, width 0.30; leg formula: 1-2-4-3: leg I—femur 3.85/ patella 1.47/ tibia 3.08/ metatarsus 1.65/ tarsus 1.06/ total 11.11; II—3.68/ 1.33/ 2.85/ 1.63/ 1.06/ 10.55; III—2.31/ 0.79/ 1.93/ 1.20/ 0.84/ 7.07; IV—2.40/ 0.80/ 1.88/ 1.18/ 0.82/ 7.08. Total body length 7.11; prosoma length 3.70, width 3.40; opisthosoma length 3.41; clypeus height 0.41; sternum length 1.45, width 1.39; gnathocoxae length 0.78, width 0.41; labium length 0.49, width 0.69.

Distribution. Queensland, New South Wales, Western Australia and Tasmania, Australia ( Fig. 35 View Figure 35 ).