CHAPTER 18. Crab Spiders: Thomisidae, Sparassidae, Philodromidae, Selenopidae, and Zoropsidae

2018 ◽  
pp. 266-273
Keyword(s):  
Crab Spiders

scholarly journals Crab-spiders manipulate flower signals

Nature ◽  
2003 ◽  
Vol 421 (6921) ◽  
pp. 334-334 ◽  
Author(s):  
Astrid M. Heiling ◽  
Marie E. Herberstein ◽  
Lars Chittka
Keyword(s):  
Crab Spiders

scholarly journals New faunistic records of the jumping and crab spiders of Karakoram, Pakistan (Aranei: Philodromidae, Salticidae and Thomisidae)

rej ◽  
2011 ◽  
Vol 20 (1) ◽  
pp. 233240-0 ◽  
Author(s):  
D. V. Logunov ◽  
F. Ballarin ◽  
Yu. M. Marusik
Keyword(s):  
Crab Spiders

scholarly journals Phrynarachne birudissp. nov., a new crab spider (Araneae, Thomisidae) from South Korea

2021 ◽  
Author(s):  
Jae Seong Im ◽  
Seung Tae Kim ◽  
Sueyeon Lee
Keyword(s):  
South Korea ◽  
Male Copulatory Organ ◽  
Copulatory Organ ◽  
Type Specimens ◽  
Biological Resources ◽  
Crab Spider ◽  
Crab Spiders

The crab spiders of the genus Phrynarachne Thorell, 1869 comprising 32 species has been widely known to distribute worldwide to date. Only one species, Phrynarachne katoi Chikuni, 1955, is known in Korea so far. A new crab spider, Phrynarachne birudis sp. nov. is described, based on a male collected from Gumi-si, Gyeongsangbuk-do, South Korea. The geographic record is provided as well as photos of habitus and illustrations of the male copulatory organ. The type specimens of this study are deposited in the collection of the Nakdonggang National Institute of Biological Resources (NNIBR) and Konkuk University (KKU), South Korea.

scholarly journals Free-standing spider silk webs of the thomisid Saccodomus formivorus are made of composites comprising micro- and submicron fibers

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Christian Haynl ◽  
Jitraporn Vongsvivut ◽  
Kai R. H. Mayer ◽  
Hendrik Bargel ◽  
Vanessa J. Neubauer ◽  
...  
Keyword(s):  
Spider Silk ◽  
Structural Integrity ◽  
Chemical Properties ◽  
Free Standing ◽  
Physico Chemical ◽  
Physical And Chemical ◽  
Crab Spiders ◽  
Ambush Predators ◽  
The Web ◽  
And Chemical Properties

Abstract Our understanding of the extraordinary mechanical and physico-chemical properties of spider silk is largely confined to the fibers produced by orb-weaving spiders, despite the diversity of foraging webs that occur across numerous spider families. Crab spiders (Thomisidae) are described as ambush predators that do not build webs, but nevertheless use silk for draglines, egg cases and assembling leaf-nests. A little-known exception is the Australian thomisid Saccodomus formivorus, which constructs a basket-like silk web of extraordinary dimensional stability and structural integrity that facilitates the capture of its ant prey. We examined the physical and chemical properties of this unusual web and revealed that the web threads comprise microfibers that are embedded within a biopolymeric matrix containing additionally longitudinally-oriented submicron fibers. We showed that the micro- and submicron fibers differ in their chemical composition and that the web threads show a remarkable lateral resilience compared with that of the major ampullate silk of a well-investigated orb weaver. Our novel analyses of these unusual web and silk characteristics highlight how investigations of non-model species can broaden our understanding of silks and the evolution of foraging webs.

scholarly journals Do crab spiders perceive Batesian mimicry in hoverflies?

2016 ◽  
Vol 27 (3) ◽  
pp. 920-931 ◽  
Author(s):  
Rohanna L. Morris ◽  
Tom Reader
Keyword(s):  
Batesian Mimicry ◽  
Crab Spiders

Three new crab spiders from Xishuangbanna Rainforest, southwestern China (Araneae: Thomisidae)

Zootaxa ◽  
2009 ◽  
Vol 2109 (1) ◽  
pp. 45-58
Author(s):  
GUO TANG ◽  
SHUQIANG LI
Keyword(s):  
Southwestern China ◽  
First Time ◽  
Crab Spiders

This study deals with three new crab spiders, Alcimochthes meridionalis sp. nov., Lycopus primus sp. nov. and Oxytate capitulata sp. nov., all from Xishuangbanna Rainforest, Yunnan, China. The genus Lycopus Thorell, 1895, formerly described from females only, is reported from China for the first time in both sexes.

Phylogenetics and comparative morphology of crab spiders (Araneae: Dionycha, Thomisidae)

Zootaxa ◽  
2011 ◽  
Vol 3080 (1) ◽  
pp. 1 ◽  
Author(s):  
SURESH P. BENJAMIN
Keyword(s):  
New Species ◽  
Color Change ◽  
Comparative Morphology ◽  
Morphological Data ◽  
New Combinations ◽  
Change Behavior ◽  
The Family ◽  
Taxonomic Changes ◽  
Crab Spiders ◽  
Plesiomorphic Character

The higher-level phylogenetic relationships of crab spiders (Thomisidae) are studied from morphological data. 33 taxa are coded for 74 characters (53 binary and 21 multistate). Several analyses using equal, successive and implied weights were carried out. The most parsimonious tree obtained by analysis with successive and implied weights is put forward as the preferred hypothesis of thomisid relationships (length 222 steps, CI 0.74, RI 0.83). Thomisidae emerge monophyletic in all analyses, supported by four unambiguous synapomorphies. It is now apparent that thomisid taxa have been mostly defined on the basis of plesiomorphic character states. A number of taxonomic changes, including the description of new taxa are proposed and the evolution of diverse behaviors of thomisids is studied in light of the new phylogenetic result. Color change behavior evolved once within the family, but eye arrangement patterns of the median ocular quadrangle, thought to be diagnostic for many genera, evolved as much as 10 times independently. The following new species are described: Borboropactus nyerere sp. nov., Cebrenninus srivijaya sp. nov., Geraesta lehtineni sp. nov. and Geraesta mkwawa sp. nov. The following new generic synonymies are proposed: Bucranium O. P.-Cambridge, 1881 = Aphantochilus O. P.-Cambridge, 1870; Sanmenia Song and Kim, 1992 = Pharta Thorell, 1891 and Cupa Strand, 1906 = Epidius Thorell, 1877. The following species are synonymized: Regillus divergens Hogg, 1914 and Borboropactus hainanus Song, 1993 = Borboropactus bituberculatus Simon, 1884 syn. nov., Epidius ganxiensis (Yin, Peng & Kim, 1999) = Epidius rubropictus Simon, 1909 syn. nov., Geraesta bilobata Simon, 1897 = Geraesta hirta Simon, 1889 syn. nov., Sanmenia kohi Ono, 1995 = Pharta bimaculata Thorell, 1891 syn. nov. and Sanmenia zhengi (Ono & Song, 1986) = Pharta brevipalpus (Simon, 1903) syn. nov. The following new combinations are proposed: Aphantochilus taurifrons (O. P.-Cambridge, 1881) comb. nov., Epidius typicus (Bösenberg & Strand, 1906) comb. nov., Pharta brevipalpus (Simon, 1903) comb. nov., Pharta gongshan (Yang, Zhu and Song, 2006) comb. nov., Pharta nigra (Tang, Griswold & Peng, 2009) comb. nov. and Pharta tengchong (Tang, Griswold & Yin, 2009) comb. nov.

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