Life-History Constraints in Inaccurate Batesian Myrmecomorphic Spiders (Araneae: Corinnidae, Gnaphosidae)
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Notes on New and Poorly Known Palaearctic Species of the Genera
Bull. Br. arachnol. Soc. (2004) 13 (2), 33–40 33 Notes on new and poorly known Palaearctic Stockholm, Sweden (Dr T. Kronestedt); species of the genera Neon, Sitticus and Synageles YMTU=personal collection of Dr Yuri Marusik, (Araneae: Salticidae) temporarily kept in Zoological Museum, Turku University, Finland; ZMTU=Zoological Museum, Dmitri V. Logunov University of Turku, Turku, Finland (Dr S. Koponen); Manchester Museum, ZMUM=Zoological Museum, Moscow State University of Manchester, University, Moscow, Russia (Dr K. G. Mikhailov). Oxford Road, Manchester, M13 9PL Abbreviations used in the text: AME=anterior median eyes, ap=apical, d=dorsal, Fm=femur, Summary Mt=metatarsus, PLE=posterior lateral eyes, pr=prolateral, Pt=patella, rt=retrolateral, Tb=tibia, Two new species are diagnosed, figured and described: v=ventral. The sequence of leg segment measurements is Neon kovblyuki sp. n. (_\; Ukraine: the Crimea) and Synageles persianus sp. n. (_\; Azerbaijan and Iran). The as follows: femur+patella+tibia+metatarsus+tarsus. male of Sitticus rivalis Simon, 1937 is figured for the first For the leg spination the system adopted is that used by time; furthermore, this species is removed from synonymy Ono (1988). All measurements are in mm. with S. striatus Emerton, 1911. Neon pusio Simon, 1937 is synonymised with Neon convolutus Denis, 1937. Neon (Dicroneon) kovblyuki sp. n. (Figs. 1–6) Introduction Types: Holotype _ (ZMUM), Ukraine, the Crimea, Cape Martyan Reserve (44(30#N, 34(15#E), 1–70 m Although the Salticidae of northern and central a.s.l., 10 March 2002, Y. M. Marusik. Paratypes: 4\ Europe are relatively well-known, those from southern (ZMUM), together with holotype. -
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. -
Does Argentine Ant Invasion Conserve Colouring Variation of Myrmecomorphic Jumping Spider?
Open Journal of Animal Sciences, 2014, 4, 144-151 Published Online June 2014 in SciRes. http://www.scirp.org/journal/ojas http://dx.doi.org/10.4236/ojas.2014.43019 Argentine Ant Affects Ant-Mimetic Arthropods: Does Argentine Ant Invasion Conserve Colouring Variation of Myrmecomorphic Jumping Spider? Yoshifumi Touyama1, Fuminori Ito2 1Niho, Minami-ku, Hiroshima City, Japan 2Laboratory of Entomology, Faculty of Agriculture, Kagawa University, Ikenobe, Japan Email: [email protected] Received 23 April 2014; revised 3 June 2014; accepted 22 June 2014 Copyright © 2014 by authors and Scientific Research Publishing Inc. This work is licensed under the Creative Commons Attribution International License (CC BY). http://creativecommons.org/licenses/by/4.0/ Abstract Argentine ant invasion changed colour-polymorphic composition of ant-mimetic jumping spider Myrmarachne in southwestern Japan. In Argentine ant-free sites, most of Myrmarachne exhibited all-blackish colouration. In Argentine ant-infested sites, on the other hand, blackish morph de- creased, and bicoloured (i.e. partly bright-coloured) morphs increased in dominance. Invasive Argentine ant drives away native blackish ants. Disappearance of blackish model ants supposedly led to malfunction of Batesian mimicry of Myrmarachne. Keywords Batesian Mimicry, Biological Invasion, Linepithema humile, Myrmecomorphy, Myrmarachne, Polymorphism 1. Introduction It has attracted attention of biologists that many arthropods morphologically and/or behaviorally resemble ants [1]-[4]. Resemblance of non-ant arthropods to aggressive and/or unpalatable ants is called myrmecomorphy (ant-mimicry). Especially, spider myrmecomorphy has been described through many literatures [5]-[9]. Myr- mecomorphy is considered to be an example of Batesian mimicry gaining protection from predators. -
Prey of the Jumping Spider Phidippus Johnsoni (Araneae : Salticidae)
Jackson, R. R . 1977 . Prey of the jumping spider Phidippus johnsoni (Araneae : Salticidae) . J. Arachnol. 5 :145-149 . PREY OF THE JUMPING SPIDER PHIDIPPUS JOHNSONI (ARANEAE : SALTICIDAE) Robert R. Jackson I Zoology Departmen t University of Californi a Berkeley, California 9472 0 ABSTRACT Field data indicate that P. johnsoni is an euryphagous predator, whose diet includes organisms (aphids, ants, opilionids) sometimes considered distasteful to spiders . Other spiders are preyed upon , including conspecifics. Prey size tends to be one quarter to three quarters the size of the predator . INTRODUCTION Since spiders are probably a dominant group of predators of insects (Bristowe, 1941 ; Riechert, 1974; Turnbull, 1973), there is considerable interest in their feeding ecology . Spiders have usually been considered to be euryphagous predators with a stabilizing , rather than regulative, effect on insect populations (Riechert, 1974) . However, informa- tion concerning the prey taken by particular spider species, in the field, is limited . Field studies by Edgar (1969, 1970), Robinson and Robinson (1970) and Turnbull (1960) are especially noteworthy . During the course of a study of the reproductive biology of Phidippus johnsoni (Peckham and Peckham) (Jackson, 1976), occasionally individuals of this species were found in the field holding prey in their chelicerae . Each prey discovered in this way i s listed in Table 1 . In addition, Ken Evans and Charles Griswold, who were familiar wit h this species, recorded observations of P. johnsoni with prey. (Their data are included in Table 1 .) These data came from a variety of habitats in western North America, most o f which have been described elsewhere (Jackson, 1976) . -
Araneae, Salticidae) in the Fauna of Central Asia
'' BULLETLN DE L'INSTITUT ROYAL DES SC IENCES NATU RELLES DE BELGIQUE ENTOMOLOG IE, 66: 65-74, 1996 BU LLETIN VAN HET KONINKLIJK BELGISCH £NSTITUUT VOOR NATUURWETENSCHAPPEN ENTOMO LOGLE, 66: 65-74, 1996 A review of the spider genus Synageles SIMON, 1876 (Araneae, Salticidae) in the fauna of Central Asia by Dmitri V. LOGUNOV and Sergei Yu. RAKOV Abstract ZISP- the Zoological Institute of Russian Academy of Science, St.-Petersburg, Ru ssia; This paper presents a revisional study of the genus Synageles in ZMMU- the Zoological Museum of the Moscow State the fauna of Central Asia. Five species are found in th e fauna Universi ty , Moscow, Ru ssia. present, four of them are redescribed and/or figured. Distribu Only relevant literature concerned with the spider fauna tional maps for all species are provided as well. The male of S. of the territory studied is included in the text. For a charitonovi is described for the first time. complete li st of the taxonomic sources for each species involved see KASTON (1945), TH ALE R (1983), CUTLER (1988) and PR6SZYNSK1 (1990). Introduction The sequence of leg segments in measurement data is as fo llows: femur+patella+tibia+metatarsus+tarsus. All According to NENILIN (1984a, 1985) there are five Syna measurements are in mm. geles species occurring in Middle Asia, three of them For the leg spination the system adopted is that used by (S. ramitus, S. venator and S. hilarulus) being also ONO (1988). Abbreviations used in the text: ap- apical; d recorded further east in Tuva, Mongolia and NW China dorsal; Fm- femur; pr- prolateral; Pt- patella; rt- retro (PR6SZYNSKI, 1982; ZHOU & SONG, 1988; LOGUNOV, Iateral; Tb- tibia; Mt- metatarsus; v- ventral. -
Lathys Stigmatisata (Menge, 1869), Ballus Rufipes (Simon, 1868), Synageles Hilarulus (C.L
Lathys stigmatisata (Menge, 1869), Ballus rufipes (Simon, 1868), Synageles hilarulus (C.L. Koch, 1846), Phrurolithus nigrinus (Simon, 1878) and Phycosoma inornatum (O. Pickard-Cambridge, 1861): five spiders new to the fauna of Luxembourg (Araneae: Theridiidae, Dyctiniidae, Phrurolithidae, Salticidae) with records of other rare species Raoul Gerend 35, rue de Hellange L-3487 Dudelange, Luxembourg ([email protected]) Gerend, R., 2020. Lathys stigmatisata (Menge, 1869), Ballus rufipes(Simon, 1868), Synageles hilarulus (C.L. Koch, 1846), Phrurolithus nigrinus (Simon, 1878) and Phycosoma inornatum (O. Pickard-Cambridge, 1861): five spiders new to the fauna of Luxembourg (Araneae: Theridiidae, Dyctiniidae, Phrurolithidae, Salticidae) with records of other rare species. Bul- letin de la Société des naturalistes luxembourgeois 122 : 211-215. Published online 26 August 2020 (ISSN 2716-750X). Abstract. Five spider species are recorded for the first time from Luxembourg. Their habi- tats are described. New data are presented for another three species. The importance of the former open-cast iron ore quarries of southwestern Luxembourg for thermophilous spiders is emphasised. 1. Introduction 2. Material and methods The first catalogue of the spider fauna of Lux- Spiders were collected using a range of con- embourg published in 2019 (Kreuels et al.) ventional methods which shall be specified lists 495 species while the authors estimate in the respective species’ paragraph. The that roughly 600 to 700 species should rea- spiders were then preserved in 70% isopro- sonably be expected to occur in the Grand- panol or 70% ethanol. All the material is Duchy. They consider Luxembourg’s spider kept in the author’s collection. Identifica- fauna to be rather under-recorded, due to a tions are based on Roberts (1996), Bee et lack of systematic collecting throughout the al. -
A Protocol for Online Documentation of Spider Biodiversity Inventories Applied to a Mexican Tropical Wet Forest (Araneae, Araneomorphae)
Zootaxa 4722 (3): 241–269 ISSN 1175-5326 (print edition) https://www.mapress.com/j/zt/ Article ZOOTAXA Copyright © 2020 Magnolia Press ISSN 1175-5334 (online edition) https://doi.org/10.11646/zootaxa.4722.3.2 http://zoobank.org/urn:lsid:zoobank.org:pub:6AC6E70B-6E6A-4D46-9C8A-2260B929E471 A protocol for online documentation of spider biodiversity inventories applied to a Mexican tropical wet forest (Araneae, Araneomorphae) FERNANDO ÁLVAREZ-PADILLA1, 2, M. ANTONIO GALÁN-SÁNCHEZ1 & F. JAVIER SALGUEIRO- SEPÚLVEDA1 1Laboratorio de Aracnología, Facultad de Ciencias, Departamento de Biología Comparada, Universidad Nacional Autónoma de México, Circuito Exterior s/n, Colonia Copilco el Bajo. C. P. 04510. Del. Coyoacán, Ciudad de México, México. E-mail: [email protected] 2Corresponding author Abstract Spider community inventories have relatively well-established standardized collecting protocols. Such protocols set rules for the orderly acquisition of samples to estimate community parameters and to establish comparisons between areas. These methods have been tested worldwide, providing useful data for inventory planning and optimal sampling allocation efforts. The taxonomic counterpart of biodiversity inventories has received considerably less attention. Species lists and their relative abundances are the only link between the community parameters resulting from a biotic inventory and the biology of the species that live there. However, this connection is lost or speculative at best for species only partially identified (e. g., to genus but not to species). This link is particularly important for diverse tropical regions were many taxa are undescribed or little known such as spiders. One approach to this problem has been the development of biodiversity inventory websites that document the morphology of the species with digital images organized as standard views. -
Jump Takeoff in a Small Jumping Spider
Journal of Comparative Physiology A https://doi.org/10.1007/s00359-021-01473-7 ORIGINAL PAPER Jump takeof in a small jumping spider Erin E. Brandt1,2 · Yoshan Sasiharan2 · Damian O. Elias1 · Natasha Mhatre2 Received: 27 October 2020 / Revised: 4 February 2021 / Accepted: 23 February 2021 © The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2021 Abstract Jumping in animals presents an interesting locomotory strategy as it requires the generation of large forces and accurate timing. Jumping in arachnids is further complicated by their semi-hydraulic locomotion system. Among arachnids, jumping spiders (Family Salticidae) are agile and dexterous jumpers. However, less is known about jumping in small salticid species. Here we used Habronattus conjunctus, a small jumping spider (body length ~ 4.5 mm) to examine its jumping performance and compare it to that of other jumping spiders and insects. We also explored how legs are used during the takeof phase of jumps. Jumps were staged between two raised platforms. We analyzed jumping videos with DeepLabCut to track 21 points on the cephalothorax, abdomen, and legs. By analyzing leg liftof and extension patterns, we found evidence that H. conjunc- tus primarily uses the third legs to power jumps. We also found that H. conjunctus jumps achieve lower takeof speeds and accelerations than most other jumping arthropods, including other jumping spiders. Habronattus conjunctus takeof time was similar to other jumping arthropods of the same body mass. We discuss the mechanical benefts and drawbacks of a semi- hydraulic system of locomotion and consider how small spiders may extract dexterous jumps from this locomotor system. -
The European Ant Hunters Tracheliodes Curvitarsus and T. Varus (Hymenoptera: Crabronidae): Taxonomy, Species Discrimination, Distribution, and Biology
Myrmecologische Nachrichten 6 39 - 47 Wien, Dezember 2004 The European ant hunters Tracheliodes curvitarsus and T. varus (Hymenoptera: Crabronidae): taxonomy, species discrimination, distribution, and biology Herbert ZETTEL, Toshko LJUBOMIROV, Florian M. STEINER, Birgit C. SCHLICK-STEINER, Giselher GRABENWEGER & Heinz WIESBAUER Abstract Crabro varus PANZER, 1799 has been originally described from Austria. After the type material has been destroyed, species identity was controversal. Most recently (BITSCH & LECLERCQ 1993, LECLERCQ 1993), the taxon has been interpreted as a species of the ant hunters, genus Tracheliodes, based on a single female collected in Corse, France. New records of Tracheliodes varus from Lower Austria confirm this interpretation; in order to stabilize the species identity, we designated a neotype from the type area, Austria. Tracheliodes varus is most similar to T. curvitarsus (HERRICH-SCHAEFFER, 1841). We present diagnoses and illustrations, describe the variation of colour patterns and give new information on the discrimination of the females of these two sibling species. New records from Austria are reported for Tracheliodes curvitarsus after more than 100 years, and for T. varus after more than 200 years. Trache- liodes curvitarsus is recorded for the first time from Bulgaria and the Czech Republic, T. varus for the first time from the Czech Republic, Slovakia, and Bulgaria. In Laxenburg, Lower Austria, females of T. curvitarsus and T. varus have been found syntopic, both of them hunting workers of the dolichoderine ant Liometopum microcephalum (PANZER, 1798). Based on film sequences, we present first observations on the hunting behaviour of T. varus. Key words: crabronid wasp, sibling species, behaviour, faunistics, neotype designation, Austria, Bulgaria, Czech Republic, Slovakia, Liometopum microcephalum Dr. -
Common Kansas Spiders
A Pocket Guide to Common Kansas Spiders By Hank Guarisco Photos by Hank Guarisco Funded by Westar Energy Green Team, American Arachnological Society and the Chickadee Checkoff Published by the Friends of the Great Plains Nature Center i Table of Contents Introduction • 2 Arachnophobia • 3 Spider Anatomy • 4 House Spiders • 5 Hunting Spiders • 5 Venomous Spiders • 6-7 Spider Webs • 8-9 Other Arachnids • 9-12 Species accounts • 13 Texas Brown Tarantula • 14 Brown Recluse • 15 Northern Black Widow • 16 Southern & Western Black Widows • 17-18 Woodlouse Spider • 19 Truncated Cellar Spider • 20 Elongated Cellar Spider • 21 Common Cellar Spider • 22 Checkered Cobweb Weaver • 23 Quasi-social Cobweb Spider • 24 Carolina Wolf Spider • 25 Striped Wolf Spider • 26 Dotted Wolf Spider • 27 Western Lance Spider • 28 Common Nurseryweb Spider • 29 Tufted Nurseryweb Spider • 30 Giant Fishing Spider • 31 Six-spotted Fishing Spider • 32 Garden Ghost Spider Cover Photo: Cherokee Star-bellied Orbweaver ii Eastern Funnelweb Spider • 33 Eastern and Western Parson Spiders • 34 Garden Ghost Spider • 35 Bark Crab Spider • 36 Prairie Crab Spider • 37 Texas Crab Spider • 38 Black-banded Crab Spider • 39 Ridge-faced Flower Spider • 40 Striped Lynx Spider • 41 Black-banded Common and Convict Zebra Spiders • 42 Crab Spider Dimorphic Jumping Spider • 43 Bold Jumping Spider • 44 Apache Jumping Spider • 45 Prairie Jumping Spider • 46 Emerald Jumping Spider • 47 Bark Jumping Spider • 48 Puritan Pirate Spider • 49 Eastern and Four-lined Pirate Spiders • 50 Orchard Spider • 51 Castleback Orbweaver • 52 Triangulate Orbweaver • 53 Common & Cherokee Star-bellied Orbweavers • 54 Black & Yellow Garden Spider • 55 Banded Garden Spider • 56 Marbled Orbweaver • 57 Eastern Arboreal Orbweaver • 58 Western Arboreal Orbweaver • 59 Furrow Orbweaver • 60 Eastern Labyrinth Orbweaver • 61 Giant Long-jawed Orbweaver • 62 Silver Long-jawed Orbweaver • 63 Bowl and Doily Spider • 64 Filmy Dome Spider • 66 References • 67 Pocket Guides • 68-69 1 Introduction This is a guide to the most common spiders found in Kansas. -
Araneae, Corinnidae, Castianeirinae), a New Polymorphic Ground Sac Spider from the Southern Western Ghats of India
Zootaxa 3964 (5): 569–576 ISSN 1175-5326 (print edition) www.mapress.com/zootaxa/ Article ZOOTAXA Copyright © 2015 Magnolia Press ISSN 1175-5334 (online edition) http://dx.doi.org/10.11646/zootaxa.3964.5.7 http://zoobank.org/urn:lsid:zoobank.org:pub:BFB58A5F-8D45-4A38-B16A-B9FB1E80ABE6 Castianeira furva sp. nov. (Araneae, Corinnidae, Castianeirinae), a new polymorphic ground sac spider from the southern Western Ghats of India PRADEEP M. SANKARAN1, JOBI J. MALAMEL, MATHEW M. JOSEPH & POTHALIL A. SEBASTIAN Division of Arachnology, Department of Zoology, Sacred Heart College, Thevara, Cochin, Kerala 682 013, India 1Corresponding author. E-mail: [email protected] Introduction The ground-dwelling, ant-mimicking corinnid spider genus Castianeira, with Castianeira rubicunda as type species, was erected by Keyserling (1879). Members of the genus are closely related to the Afrotropical genus Cambalida Simon, 1910 (Haddad 2012a) and are distributed mainly in tropical and temperate regions of the world except for Australia and nearby islands (World Spider Catalog 2015). The genus was revised from the Nearctic Region and south-east Asia (Reiskind 1969 and Deeleman-Reinhold 2001, respectively) and currently includes 126 described species, making it as the largest genus within the family Corinnidae (World Spider Catalog 2015). Even though the genus is rich in species, the validity and placement of majority of the species are still doubtful and questionable. For example, according to Haddad (2012b), many of the Afrotropical species, as well as majority of the species described from India (Haddad, pers. comm.) are misplaced or synonyms of previously described ones (e.g. Haddad 2012a, 2013a). The genus thus will remain as a trash-can until all the species described so far can be revised. -
Spiders 27 November-5 December 2018 Submitted: August 2019 Robert Raven
Bush Blitz – Namadgi, ACT 27 Nov-5 Dec 2018 Namadgi, ACT Bush Blitz Spiders 27 November-5 December 2018 Submitted: August 2019 Robert Raven Nomenclature and taxonomy used in this report is consistent with: The Australian Faunal Directory (AFD) http://www.environment.gov.au/biodiversity/abrs/online-resources/fauna/afd/home Page 1 of 12 Bush Blitz – Namadgi, ACT 27 Nov-5 Dec 2018 Contents Contents .................................................................................................................................. 2 List of contributors ................................................................................................................... 2 Abstract ................................................................................................................................... 4 1. Introduction ...................................................................................................................... 4 2. Methods .......................................................................................................................... 4 2.1 Site selection ............................................................................................................. 4 2.2 Survey techniques ..................................................................................................... 4 2.2.1 Methods used at standard survey sites ................................................................... 5 2.3 Identifying the collections .........................................................................................