Eurychoera quadrimaculata Thorell 1897

Jäger, Peter, 2007, Spiders from Laos with descriptions of new species (Arachnida: Araneae), Acta Arachnologica 56 (1), pp. 29-58 : 42-43

Eurychoera quadrimaculata Thorell 1897

Figs. 26-34

Material examined. 2 female, 1 immature, syntypes, Singapore, Workman ded., No. 1409, Collection T. Thorell, 823, 829, 790 ( NHRS Stockholm) . 1 male ( RMBR), Singapore, Mac Ritchie Reservoir, web over jungle stream , Coll. Joseph K.H. Koh 81.05.0 1.0002 (body and pedipalpus in separate vials) . 1 female ( RMBR), same data as for male except 81.05.0 1.0001 . 1 female ( RMBR), Singapore, Lower Peirce Reservoir, 2°forest along boardwalk , Coll . Joseph K.H. Koh 3.XI. 06.0001

Diagnosis. See (differential) diagnosis in E. banna .

Description. Male (n= l). PL 2.2, PW 1.8, AW 1.0, OL 2.6, OW 1.4. Leg I 10.8 (2.8, 1.0, 2.8, 2.7, 1.5). AME 0.18, ALE 0.15, PME 0.17, PLE 0.19. Chelicerae with 3 anterior and 3 posterior teeth, without denticles in the cheliceral furrow.

Colour (in ethanol). Prosoma reddish brown. Opisthosoma and legs yellowish brown. Dorsal opisthosoma with dark median band and white patches along its lateral margin. Ventral opisthosoma dark with white patch close behind epigastric furrow.

Female (n=2). PL 2.6-4.2, PW 2.2-3.4, OL 4.5-5.4, OW 2.4- 3.0.

Distribution. Known so far from Singapore and Malaysian peninsular ( Thorell 1897, Koh 1989, Murphy & Murphy 2000).

Biology. Specimens were seen in rolled leaf retreats and in nearby branches with legs stretched. Females with egg sacs in their chelicerae were observed walking around in the foliage and on branches outside the web (Koh, pers. comm.).

Figures

Figs. 26 - 34. Eurychoera quadrimaculata Thorell 1897. Male (26 - 28) and females (29 - 34) from Singapore (26 - 29: Mac Ritchie Reservoir; 30: Peirce Reservoir; 31 - 33, 34: syntypes, not specified). 26 - 27 male pedipalpus (26 ventral, 27 retrolateral view); 28 eye arrangement, dorsal view; 29 - 30, 31 - 32, 34 epigynum (29 - 30, 31, 34 ventral view, 32 posterior view); 33 internal duct system, dorsal view, da — distal apophysis, e — embolus.