Pop-eye Big-head Jumper
This species is immediately identifiable by the elevated tubercles of the posterior eyes (particularly conspicuous in the male) and by its size (the species name "besar" is derived from the Malay word for "big"). There is an unmistakable median line at the anterior end of the abdomen in both males and females.
The female has a tall and orangish-brown carapace, and a characteristic pair of jagged bars on the posterior part of the abdomen.
The male carapace is black, with a belt of white hairs along its lower margin. The abdomen may be dark brown or black. The legs are lined with numerous long white hairs.
Length | ♀ 6–8 mm; ♂ 7–8 mm. |
Habitat | Foliage in primary and secondary rainforests. |
Biology | Females have been seen "sleeping" at night in mid-air, suspended on a thread of silk. |
Type Locality | Sukau, Sabah, Malaysia. |
Distribution | Brunei, Malaysia (Sabah, Sarawak), Singapore. |
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Chelicerata (Chelicerates)
Class Arachnida (Arachnids)
Order Araneae (Spiders)
Holotype
Peter Koomen Private Collection, Leeuwarden, Netherlands; ♂ (Prószyński, 2018b)
Paratype(s)
Peter Koomen Private Collection, Leeuwarden, Netherlands; ♂ (Prószyński, 2018b)
Nontype ♀
17 Aug 2015
BTNR, Seraya Trail, Singapore
1°21'34"N, 103°46'27"E
Lee Kong Chian Natural History Museum
Catalog No: JK.15.08.17.0005
Nontype ♂
11 May 2015
BTNR, Senapang Trail, maturing secondary forest, Singapore
1°20'53"N, 103°46'19"E
Lee Kong Chian Natural History Museum
Catalog No: JK.15.05.11.31.0008
Brunei, Malaysia (Sabah, Sarawak), Singapore.