Araneae: Thomisidae)
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Untangling the Web… Spiders in Arizona Fields! Ayman Mostafa, Lydia M
Untangling the Web… Spiders in Arizona Fields! Ayman Mostafa, Lydia M. Brown, Tim Vandervoet, Peter C. Ellsworth (University of Arizona), Vonny Barlow (University of California) & Steven E. Naranjo (USDA-ARS, ALARC) Spiders are beneficial inhabitants of agricultural fields because of Lygus nymph prey their important contributions to biological control of pest insects, consuming tons of small arthropods every year. Spiders eat anything they can catch, even prey larger than themselves. When they are abundant, they contribute to the control of many insect pests in A Arizona crop fields including whiteflies, Lygus bugs, fleahoppers, Leafhopper and lepidopteran larvae. Field studies in Arizona demonstrate that the prey B crab spider, Misumenops celer (Family Thomisidae, Fig. 1A, B) and Dictyna spider, Dictyna reticulata (Family Dictynidae, Fig. 1C, D) are common in Arizona cotton fields and can be influential predators. Unlike other spiders that spin webs to capture their food, crab spiders rely on stealth and surprise. They actively search plant surfaces, litter, and debris for prey. They hide in flowers or foliage and ambush their prey. Their common name derives from the fact that they look like and walk like crabs. Dictyna are small, brownish, web-making E spiders that trap whitefly adults and other insects in their webs (Fig. 1C). Examining their webs enables easy identification of what D species of whitefly are in the field (sweetpotato or banded-winged). C Jumping spiders (Family Salticidae, Fig. 1E) are generally less abundant in cotton fields but, like crab spiders, ambush their prey. They have stout bodies and long front legs adapted for jumping, as well as four pairs of eyes with one very large set in the middle of their face. -
Mimicry and Camouflaging Spiders
Antelope Island Spider Festival Mimicry and Camouflaging Spiders In the natural world mimicry is a phenomenon These spiders will mimic ants in several encountered frequently in the natural world, different ways. Anything from moving in the and the world of spiders is no exception. same fashion as ants to even having altered body shapes. One species, Castianeira Mimicry can be used by one organism to avoid longipalpa (kass-tee-uh-NEE-ruh lon-jih-PAHL- predation by puh), even goes so far as to wave around its looking or front two legs like antennae. acting similar to a more For the most part spiders in the Corinnidae dangerous family don’t spin a web with the exception of a organism. Such small shelter, called a sac, to rest in underneath as with the a log or rock or in the leaf litter when they scarlet king aren’t hunting for food or looking for mates. snake, which is Corinnidae spiders tend to prey on smaller harmless, and insects. Some common prey items include ants, the eastern ant larvae, leaf or tree hoppers, fruit flies, and coral snake, micro moths. which is highly venomous. Another phenomenon found frequently in the natural world is camouflage, and once again Mimicry can also be used aggressively, as in a spiders utilize this as well. predator resembling its prey, or a parasite its host. There are several examples of spiders Camouflage can be used by an organism to performing this kind of mimicry. blend in with its background to avoid predation. It can also be used by an ambush There are at least two families of spiders with predator to blend in with the background so members that practice mimicry. -
Note on Suspected Brown Recluse Spiders (Araneae: Sicariidae) in South Carolina
Faculty Research Note Note on Suspected Brown Recluse Spiders (Araneae: Sicariidae) in South Carolina Robert J. Wolff* South University, 9 Science Court, Columbia, SC 29203 The general public believes that brown recluse spiders (Loxosceles Filistatidae (Kukulcania hibernalis) 22 specimens reclusa) are widespread where they live and that these spiders are Lycosidae 21 (3 in one package, 5 in another) frequent causes of bites resulting in dermonecrosis. Research over the Pholcidae 17 past twenty years shows these reports to be unfounded. Vetter (2005) Miturgidae 8 examined 1,773 specimens sent in from across the U.S. as brown recluse Theridiidae 8 spiders and no specimens were found from areas outside the species Agelenidae 7 range, with the exception of a specimen from California. Araneidae 6 Clubionidae 6 The reported range of the brown recluse spider includes all or major Thomisidae 6 portions of Arkansas, Oklahoma, Texas, Louisiana, Alabama, Tennessee, Gnaphosidae 4 Kentucky, Illinois, Missouri and Kansas. Minor portions of the brown Corinnidae 3 recluse range were previously reported in Iowa, Indiana, Ohio, New Philodromidae 3 Mexico, North Carolina, Georgia, and South Carolina. The most recent Amaurobiidae 1 map (Vetter, 2015) does not include South Carolina, and only the far Pisauridae 1 western tip of North Carolina and northwestern corner of Georgia. Scytodidae (Scytodes thoracica) 1 Unidentifiable 4 Schuman and Caldwell (1991) found that South Carolina physicians reported treating 478 cases of brown recluse spider envenomations in 1990 alone. This seems like a very high number, unfortunately all or No brown recluses were identified from the specimens obtained in this almost all of these are probably not brown recluse spider bites. -
Araneae : Philodromidae and Thomisidae, by Charles D
The Journal of Arachnology 8 : 95 Muchmore, W . B. 1969a. The pseudoscorpion genus Neochthonius Chamberlin (Arachnida , Chelonethida, Chthoniidae) with description of a cavernicolous species, Amer. Midl . Nat . 81 :387-394 . Muchmore, W. B . 1969b . New species and records of cavernicolous pseudoscorpions of the genu s Microcreagris (Arachnida, Chelonethida, Neobisiidae, Ideobisiinae) . Amer . Mus. Novitate s 2392:1-21 . Muchmore, W. B . 1976 . New species of Apochthonius, mainly from caves in central and eastern United States (Pseudoscirpionida, Chthoniidae) . Proc. Biol . Soc . Washington 89 :67-80 . Muchmore, W . B. and E. M . Benedict . 1976 . Redescription of Apochthonius moestus (Banks), type of the genus Apochthonius Chamberlin (Pseudoscirpionida, Chthoniidae) . J. New York Entomol. Soc. 84 :67-74 . Schuster, R . O . 1966 . New species of Apochthonius from western North America . Pan-Pacifi c Entomol . 42 :178-183 . Manuscript received March 1979, revised May 1979. BOOK REVIEW The Crab Spiders of Canada and Alaska : Araneae : Philodromidae and Thomisidae, by Charles D . Dondale and James H. Redner, 1978 . Part 5 of The Insects and Arachnida o f Canada, Publication 1663, pp . 1-255, 725 figs., 66 maps . Available from Printing and Publishing Supply and Services Canada, Hull, Quebec, Canada K1A OS9, Canada . Canada : $7 .50 ; other countries : $9.00. This handsome, soft-bound volume, dealing with the spider families Philodromidae an d Thomisidae from north of the United States, is a striking contribution to Canadia n arachnology . About half of the taxa of all temperate North America (110 of some 22 3 species) occur in Canada . The authors have drawn much of the data from their many papers on these spiders, but this has been materially supplemented by new appraisals , illustrations, and distribution information . -
Spiders of the Family Thomisidae in Hawaii1
Pacific Insects 12 (4) : 773-864 25 December 1970 SPIDERS OF THE FAMILY THOMISIDAE IN HAWAII1 By Theodore W. Suman2 Abstract: The spider family Thomisidae in the Hawaiian Islands contains 30 species which constitutes approximately 20 % of the Hawaiian spider fauna. All of the species are endemic to the Hawaiian Islands. The 30 species of Hawaiian Thomisidae are grouped into 2 subfamilies and 5 genera. In the subfamily Misumeninae, 17 of the 21 species are placed in the genus Misumenops which has not been previously recorded for the Hawaiian Islands. The genus Synaema contains 1 species, and the endemic genus Mecaphesa contains 3 species. Five species are synonymized and 9 new species are de scribed in this subfamily. In the subfamily Philodrominae, the endemic genus Proernus contains 5 species and the endemic genus Pagiopalus contains 4 species. One genus and 3 species are synonymized, and 1 new species is described in this subfamily. All species are described and 28 of the 30 species are illustrated. Type specimens are missing for the 2 species not illustrated. A key to the subfamilies, genera and species, and data on the distribution and ecology of each species are presented. Information on the biology and phylogeny of the Thomisidae in the Hawaiian Islands is included. The crab-spider family Thomisidae is a moderately large group and is world-wide in distribution. In the Hawaiian Islands, this family consists of 30 species which is ap proximately 20 % of the spider fauna. Karsch (1880) described Diaea kanakana (= Misumenops kanakanus), the first Ha waiian thomisid, from a group of spiders collected by O. -
Australian Native Bees Avoid Their Spider Predators
by responding to the same floral signals as these honeybees do (Heiling & Herberstein 2004; Heiling et al. 2004). Fur- thermore, it manipulates visual floral signals. While Euro- pean crab spiders appear camouflaged on flowers (Chittka 2001; The´ry & Casas 2002), T. spectabilis produces a Predator–prey coevolution: strong colour contrast in the UV range of the light spec- trum, attracting honeybees (Heiling et al. 2003). This is Australian native bees in line with empirical data showing that bees are attracted to strongly contrasting marks on flowers (Lunau et al. avoid their spider 1996). predators European honeybees did not coevolve with T. spectabilis but were introduced to Australia ca. 200 years ago. By * contrast, native Australian bees that are also captured by A. M. Heiling and M. E. Herberstein T. spectabilis coevolved with this species. We test our pre- Department of Biological Sciences, Macquarie University, North Ryde, diction that native Australian bees evolved anti-predatory NSW 2109, Australia * Author for correspondence ([email protected]). behaviour to avoid their predators, unlike the naive Euro- pean honeybees. Recd 14.10.03; Accptd 10.11.03; Published online 12.01.04 2. MATERIAL AND METHODS Australian crab spiders Thomisus spectabilis Thomisus spectabilis were collected in suburban areas of Brisbane, manipulate visual flower signals to lure introduced Australia. Females reach a body length of ca. 1 cm. Female coloration Apis mellifera. We gave Australian native bees, Aus- varies and we used only white ones in our experiments. Native bees (Austroplebia australis) that were kept in an outdoor hive at the Uni- troplebia australis, the choice between two white versity grounds were transferred into a growth house and trained to daisies, Chrysanthemum frutescens, one of them visit a feeding station (ca. -
Spiders of Alberta: from Agelenidae to Uloboridae
Spiders of Alberta: from Agelenidae to Uloboridae Dr. Heather Proctor University of Alberta for the Edmonton Nature Club, 7 Feb 2019 (selected slides for posting; photos (c) H. Proctor unless otherwise noted) Canadian and Albertan diversity • 1477 species of spiders in 45 families known from Canada – may be up to 1800 spp. • 657 species in 28 families known from Alberta 631 of the 657 species are included here from https://www.albertaparks.ca/media/6255191/list-of-elements-ab-invertebrates-spiders.xlsx The 28 families of spiders known from Alberta • no mygalomorph spiders in AB, only araneomorph • Division Synspermiata – Pholcioidea: Pholcidae, Telemidae • Division Entelegynae – Araneoidea: Theridiidae, Araneidae, Linyphiidae, Mysmenidae, Mimetidae, Tetragnathidae – Uloboroidea: Uloboridae – Titanoecoidea: Titanoecidae – Amaurobioidea: Amaurobiidae – Desoidea: Desidae – Agelenoidea: Dictynidae, Cybaeidae, Hahniidae, Agelenidae – Lycosoidea: Oxyopidae, Thomisidae, Pisauridae, Lycosidae – Salticoidea: Salticidae, Philodromidae, Corinnidae, Eutichuridae – Anyphaenoidea: Anyphaenidae, Clubionidae – Liocranoidea: Liocranidae – Trochanteroidea: Phrurolithidae, Gnaphosidae mygalomorphs from BC, Antrodiaetus sp. Linyphiidae 261 Gnaphosidae 51 Lycosidae 50 Salticidae 45 Number of species known Dictynidae 36 from each family in Alberta Thomisidae 37 Theridiidae 36 (based on Robb Bennett’s Araneidae 32 personal list, 7 Feb 2019) Philodromidae 29 Clubionidae 17 Tetragnathidae 14 Hahniidae 10 Amaurobiidae 7 Agelenidae 6 Corinnidae 3 Phrurolithidae -
Title a Revisional Study of the Spider Family Thomisidae (Arachnida
A revisional study of the spider family Thomisidae (Arachnida, Title Araneae) of Japan( Dissertation_全文 ) Author(s) Ono, Hirotsugu Citation 京都大学 Issue Date 1988-01-23 URL https://doi.org/10.14989/doctor.r6388 Right Type Thesis or Dissertation Textversion author Kyoto University 学位 請 論 文 (主 論 文) 小 野 族 嗣 1灘 灘灘 灘轟 1 . Thomisidae aus Japan. I. Das Genus Tmarus Simon (Arachnida: Araneae). Acta arachnol., 27 (spec. no.): 61-84 (1977). 2 . Thomisidae aus Japan. II. Das Genus Oxytate L.Koch 1878 (Arachnida: Araneae). Senckenb. biol., 58: 245-251 (1978). 3 . Thomisidae aus dem Nepal-Himalaya. I. Das Genus Xysticus C.L.Koch 1835 (Arachnida: Araneae). Senckenb. biol., 59: 267-288 (1978). 4 . Thomisidae aus dem Nepal-Himalaya. II. Das Genus Lysiteles Simon 1895 (Arachnida: Araneae). Senckenb. biol., 60: 91-108 (1979). 5 . Fossile Spinnen aus miozanen Sedimenten des Randecker Maars in SW- Deutschland (Arachnida: Araneae). Jh. Ges. Naturkde. Wurttemberg, 134: 133-141 (1979). (W.Schawaller t 4E1t) 6 . Thomisidae aus Japan. III. Das Genus Lysiteles Simon 1895 (Arachnida: Araneae). Senckenb. biol., 60: 203-217 (1980). 7 . Thomisidae aus dem Nepal-Himalaya. III. Das Genus Stiphropus Gerstaecker 1873, mit Revision der asiatischen Arten (Arachnida: Araneae). Senckenb. biol., 61: 57-76 (1980). 8 . Erstnachweis einer Krabbenspinne (Thomisidae) in dominikanischem Bernstein (Stuttgarter Bernsteinsammlung: Arachnida, Araneae). Stuttgart. Beitr. Naturk., B, (73): 1-13 (1981). 9 . Revision japanischer Spinnen. I. Synonymieeiniger Arten der Familien Theridiidae, Araneidae, Tetragnathidae and Agelenidae (Arachnida: Araneae). Acta arachnol., 30: 1-7 (1981). 10 . Verwandtschaft von Tetrablemma phulchoki Lehtinen 1981 (Araneae: Tetrablemmidae). Senckenb. biol., 62: 349-353 (1982). -
Common Spiders of the Chicago Region 1 the Field Museum – Division of Environment, Culture, and Conservation
An Introduction to the Spiders of Chicago Wilderness, USA Common Spiders of the Chicago Region 1 The Field Museum – Division of Environment, Culture, and Conservation Produced by: Jane and John Balaban, North Branch Restoration Project; Rebecca Schillo, Conservation Ecologist, The Field Museum; Lynette Schimming, BugGuide.net. © ECCo, The Field Museum, Chicago, IL 60605 USA [http://fieldmuseum.org/IDtools] [[email protected]] version 2, 2/2012 Images © Tom Murray, Lynette Schimming, Jane and John Balaban, and others – Under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 License (non-native species listed in red) ARANEIDAE ORB WEAVERS Orb Weavers and Long-Jawed Orb Weavers make classic orb webs made famous by the book Charlotte’s Web. You can sometimes tell a spider by its eyes, most have eight. This chart shows the orb weaver eye arrangement (see pg 6 for more info) 1 ARANEIDAE 2 Argiope aurantia 3 Argiope trifasciata 4 Araneus marmoreus Orb Weaver Spider Web Black and Yellow Argiope Banded Argiope Marbled Orbweaver ORB WEAVERS are classic spiders of gardens, grasslands, and woodlands. The Argiope shown here are the large grassland spiders of late summer and fall. Most Orb Weavers mature in late summer and look slightly different as juveniles. Pattern and coloring can vary in some species such as Araneus marmoreus. See the link for photos of its color patterns: 5 Araneus thaddeus 6 Araneus cingulatus 7 Araneus diadematus 8 Araneus trifolium http://bugguide.net/node/view/2016 Lattice Orbweaver Cross Orbweaver Shamrock Orbweaver 9 Metepeira labyrinthea 10 Neoscona arabesca 11 Larinioides cornutus 12 Araniella displicata 13 Verrucosa arenata Labyrinth Orbweaver Arabesque Orbweaver Furrow Orbweaver Sixspotted Orbweaver Arrowhead Spider TETRAGNATHIDAE LONG-JAWED ORB WEAVERS Leucauge is a common colorful spider of our gardens and woodlands, often found hanging under its almost horizontal web. -
Thomisidae of the Ames Region
Proceedings of the Iowa Academy of Science Volume 26 Annual Issue Article 19 1919 Thomisidae of the Ames Region I. L. Ressler Iowa State College Let us know how access to this document benefits ouy Copyright ©1919 Iowa Academy of Science, Inc. Follow this and additional works at: https://scholarworks.uni.edu/pias Recommended Citation Ressler, I. L. (1919) "Thomisidae of the Ames Region," Proceedings of the Iowa Academy of Science, 26(1), 151-156. Available at: https://scholarworks.uni.edu/pias/vol26/iss1/19 This Research is brought to you for free and open access by the Iowa Academy of Science at UNI ScholarWorks. It has been accepted for inclusion in Proceedings of the Iowa Academy of Science by an authorized editor of UNI ScholarWorks. For more information, please contact [email protected]. Ressler: Thomisidae of the Ames Region THOMISID/E OF THE AMES REGION I. L. RESSLER The spiders of the family Thomisida are commonly called crab spiders. They are so-called because of the characteristic crablikc attitude in which they hold the legs and because they can walk as readily sidewise or backward as forward. The first two pairs of legs are usually considerably longer and stouter than the third and fourth pairs. The tarsi are two-clawed. The eyes are small and ar ranged in two rows, both of which are almost always recurved. Crab spiders are remarkable for the fact that their color resem blance is very similar to that of their environment. Many species which live among flowers assume the color of the flower on which they live. -
Sit-And-Wait Forager Or Aggressive Spider Predator: Araneophagic Cases of Orb-Weaving Spiders by Crab Spiders of the Genus Thomisus (Araneae: Thomisidae)
Invertebrate Zoology, 2020, 17(2): 189–194 © INVERTEBRATE ZOOLOGY, 2020 Sit-and-wait forager or aggressive spider predator: Araneophagic cases of orb-weaving spiders by crab spiders of the genus Thomisus (Araneae: Thomisidae) Yuya Suzuki Graduate School of Life and Environmental Science, University of Tsukuba, 1-1-1, Tennodai, Tsukuba-shi, Ibaraki, 305-8572 Japan. E-mail: [email protected] ABSTRACT. Observational cases of predation and consumption on web-building spiders by two crab spiders from Japan, Thomisus labefactus Karsch, 1881 and T. kitamurai Nakatsudi, 1943 are reported based on the data collected from non-peer reviewed articles, illustrated books and various sources on the internet. Prey of Thomisus spiders mainly comprised orb-weaving spiders (Aranaidae), most frequently Nephila clavata (L. Koch, 1878). This publication represents the first description of web-invasion and araneophagy of orb-weaver spiders by Thomisidae in a research paper. How to cite this article: Suzuki Yuya. 2020. Sit-and-wait forager or aggressive spider predator: Araneophagic cases of orb-weaving spiders by crab spiders of the genus Thomisus (Araneae: Thomisidae) // Invert. Zool. Vol.17. No.2. P.189–194. doi: 10.15298/invertzool. 17.2.08 KEY WORDS. Araneophagy, crab spiders, dietary specialization, field observations, orb webs. Фуражировщик-засадчик или агрессивный хищник на пауков: Случаи аранеофагии, или нападения на пауков-кругопрядов со стороны пауков-бокоходов рода Thomisus (Araneae: Thomisidae) Юя Судзуки Graduate School of Life and Environmental Science, University of Tsukuba, 1-1-1, Tennodai, Tsukuba-shi, Ibaraki, 305-8572 Japan. E-mail: [email protected] РЕЗЮМЕ. По литературным и интернет-данным описаны случаи охоты на пауков- кругопрядов и их поедания со стороны двух видов пауков-бокоходов из Японии, Thomisus labefactus Karsch, 1881 и T. -
Additions to the Crab Spider Fauna of Iran (Araneae: Thomisidae)
© Arachnologische Gesellschaft e.V. Frankfurt/Main; http://arages.de/ Arachnologische Mitteilungen / Arachnology Letters 53: 1-8 Karlsruhe, April 2017 Additions to the crab spider fauna of Iran (Araneae: Thomisidae) Najmeh Kiany, Saber Sadeghi, Mohsen Kiany, Alireza Zamani & Sheidokht Ostovani doi: 10.5431/aramit5301 Abstract. In this study, the crab spider (Thomisidae) fauna of Fars Province in Iran is investigated and some additional new records are given for both the country and the province. The species Monaeses israeliensis Levy, 1973, Synema anatolica Demir, Aktas & Topçu, 2009, Thomisus unidentatus Dippenaar-Schoeman & van Harten, 2007 and Xysticus abramovi Marusik & Logunov, 1995 are new records for Iran, while Heriaeus spinipalpus Loerbroks, 1983, Ozyptila tricoloripes Strand, 1913, Runcinia grammica (C. L. Koch, 1837), Synema globosum (Fabricius, 1775), Thomisus zyuzini Marusik & Logunov, 1990, Xysticus kaznakovi Utochkin, 1968, X. loeffleriRoewer, 1955 and X. striatipes L. Koch, 1870 are new to the fauna of Fars Province. Keywords: Fars, faunistic study, new records Zusammenfassung. Ergänzungen zur Krabbenspinnenfauna des Iran (Araneae: Thomisidae). Im Rahmen dieser Studie wurden die Krabbenspinnen (Thomisidae) der Fars Provinz im Iran erfasst. Die Arten Monaeses israeliensis Levy, 1973, Synema anatolica Demir, Aktas & Topçu, 2009, Thomisus unidentatus Dippenaar-Schoeman & van Harten, 2007 und Xysticus abramovi Marusik & Logunov, 1995 sind Neunachweise für den Iran, während Heriaeus spinipalpus Loerbroks, 1983, Ozyptila tricoloripes Strand, 1913, Runcinia grammica (C. L. Koch, 1837), Synema globosum (Fabricius, 1775), Thomisus zyuzini Marusik & Logunov, 1990, Xysticus kaznakovi Utochkin, 1968, X. loeffleri Roewer, 1955 und X. striatipes L. Koch, 1870 erstmals für die Fars Provinz nachgewiesen werden konnten. In spite of recent increases in the faunistic data on Thomisi- Results dae in Iran, the family must be considered as poorly studied A total number of 14 species from seven genera were iden- in this country (Zamani et al.