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Topic: Symphyta


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  Hymenoptera Institute - Hymenoptera Glossary   (Site not responding. Last check: 2007-11-07)
In Symphyta, a paired, circular, or oval structure on the sublateral portion of the metascutum that is used to hold the wings in place when not being used.
In Parasitica, the anterior surface of the head between the eyes from the ventral margin of the toruli to the oral cavity, excluding the clypeus; in Symphyta and Aculeata, the anterior surface of the head between the eyes from the ocelli to the oral cavity, including the clypeus.
In Symphyta, the posterior subdivision of the mesoscutellum, usually crescent-shaped and overhanging the postnotum of the mesothorax.
www.uky.edu /~mjshar0/HI/glossary/index.html   (3516 words)

  
 Research Results For Symphyta   (Site not responding. Last check: 2007-11-07)
Croesus septentrionalis has a predominantly red abdomen and flies during May. The larvae of this species are found on the leaves of deciduous trees, particularly birch and alder.
The ovipostor is placed at the end of the abdomen, and consists of two flat horny plates, furnished on the inner side with very elaborate teeth, while the outer side is strengthened by a supporting plate.
These plates slide backwards and forwards in sheaths, and literally saws whose function is to bore a hole in twigs or leaves, at the bottom of which the egg is deposited.
www.probertencyclopaedia.com /cgi-bin/res.pl?keyword=Symphyta&offset=0   (581 words)

  
 David R. Smith   (Site not responding. Last check: 2007-11-07)
Systematics of New World Symphyta (Hymenoptera), with emphasis on the Western Hemisphere fauna.
Smith, D. A synopsis of the sawflies (Hymenoptera: Symphyta) of America south of the United States: Pergidae.
Smith, D. A synopsis of the sawflies (Hymenoptera: Symphyta) of America south of the United States: Argidae.
www.sel.barc.usda.gov /selhome/staff/drs.htm   (318 words)

  
 File: <SYMPHYTA
Goulet, H. The genera and subgenera of the sawflies of Canada and Alaska: Hymenoptera: Symphyta.
Smith, D.R. A synopsis of the sawflies (Hymenoptera: Symphyta) of Arnerica south of the United States: introduction, Xyelidae, Pamphiliidae, Cimbicidae, Diprionidae, Xiphydriidae, Siricidae, Orussidae, Cephidae.
Wright, A. British sawflies (Hymenoptera: Symphyta): a key to adults of the genera occurring in Britain.
faculty.ucr.edu /~legneref/taxonomy/symphyta.htm   (876 words)

  
 Wasp - Wikipedia, the free encyclopedia
Less familiar, the suborder Symphyta includes the sawflies and wood wasps, which differ from the Apocrita by having a broad connection between the thorax and abdomen.
Also, Symphyta larvae are mostly herbivorous and "caterpillarlike", whereas those of Apocrita are largely predatory or parasitic.
Most familiar wasps belong to the Aculeata, a division of the Apocrita whose ovipositors are modified into a venomous stinger that includes ants and bees.
www.wikipedia.org /wiki/Wasp   (283 words)

  
 Sex determination in Hymenoptera
The sawflies, or Symphyta, are a little known infraorder group of herbivorous and carnivorous Hymenoptera that is exclusively solitary.
Symphyta are sawflies, Aculeata are bees, ants, and vespid wasps, and Parasitica are parasitoid wasps.
The ability of females in arrhenotokous lineages to determine the sex of their offspring has important ecological and evolutionary implications for both Parasitica and social Aculeata, and may act as a selective pressure for certain forms of sex determination.
www.sccs.swarthmore.edu /users/99/mahowald/hymenoptera.html   (4726 words)

  
 Gordon's Sawfly, Wood Wasp and Horntail (Symphyta) Page
Sawflies, Wood Wasps and Horntails (The Suborder Symphyta)
BRITISH SAWFLIES (Hymenoptera: Symphyta) A key to adults of the genera occurring in Britain.
It is not expensive and should be thoroughly enjoyable, so if you like it please tell people about it, or better still give it to someone as a present for Christmas of a birthday.
www.earthlife.net /insects/symphyta.html   (991 words)

  
 Hymenoptera Glossary
cenchrus (pl., cenchri): In Symphyta, a paired, circular, or oval structure on the sublateral portion of the metascutum that is used to hold the wings in place when not being used.
face (adj., facial): In Parasitica, the anterior surface of the head between the eyes from the ventral margin of the toruli to the oral cavity, excluding the clypeus; in Symphyta and Aculeata, the anterior surface of the head between the eyes from the ocelli to the oral cavity, including the clypeus.
mesoscutellar appendage: In Symphyta, the posterior subdivision of the mesoscutellum, usually crescent-shaped and overhanging the postnotum of the mesothorax.
www.uky.edu /~mjshar0/glossary/welcome.html   (4262 words)

  
 Susanne Schulmeister's Homepage   (Site not responding. Last check: 2007-11-07)
The term sawflies (or "Symphyta") is used as a shorthand to circumscribe all those basal lineages of Hymenoptera that do not have a waspwaist, that is those families which are not part of the Apocrita.
The lack of a waspwaist is a symplesiomorphy, "Symphyta" being a paraphyletic grouping.
For my research, I am always looking for Symphyta (and other Hymenoptera) that have been collected in alcohol and / or are preserved in alcohol (e.g.
www.schulmeister.us /sawflies.html   (178 words)

  
 Cheshire Sawflies / Sawfly - (Hymenoptera: Symphyta)
The sawflies form a complete suborder known as the Symphyta and are characterised by the absence of a 'wasp-waist' constriction between the thorax and the abdomen (in sawflies the thorax runs into the abdomen in almost a straight line).
It is thought the the cephids (family Cephidae) form a link between the primitive Symphyta and the more advanced Apocrita (all of which lack cenchri).
The cephids also have a very slight waisting between the thorax and the abdomen which suggests that they are the most advanced of the sawflies and lie between then and the more evolutionary advanced wasps of the Hymenoptera.
www.consult-eco.ndirect.co.uk /entomol/chsawfly   (808 words)

  
 Introduction to Applied Entomology : Lecture 11: The Insect Orders V: Hymenoptera   (Site not responding. Last check: 2007-11-07)
Other characteristics: Abdomen is broadly joined to the thorax in Symphyta; constricted to form a "waist"-like propodeum in Apocrita.
Immatures: Symphyta resemble Lepidoptera, but have more abdominal prolegs, and the prolegs lack crochets.
Symphyta (one of two suborders): The sawflies and horntails.
www.ipm.uiuc.edu /cropsci270/syllabus/lecture0211.html   (778 words)

  
 Wasp, Insects, Wasp, insect, Pictures, Catalog, Encyclopedia   (Site not responding. Last check: 2007-11-07)
Date : 10/24/2005 Time : 4:44:36 PM Although there are varying definitions, the term wasp generally refers to the stinging members of the suborder Apocrita, order Hymenoptera, excluding the bees and ants.
Some of the nonstinging members of the suborder Symphyta (for example, the wood and cedarwood wasps), however, are also termed wasps.
The modern word is derived from Anglo-Saxon words (waefs, waeps, waesp) that apparently originated from the root wefan ("to weave"), in reference to the "woven" nests made by social paper wasps.
www.4to40.com /4to40.com_non_ssl/earth/geography/htm/insectsindex.asp?counter=37   (767 words)

  
 Taeger & Blank, Pflanzenwespen Deutschlands
The title suggests a traditional treatment of the sawfly fauna of Germany; that is, an identification manual with keys and descriptions of all of die country's taxa.
Although the emphasis is on Germany, the text is a welcome and refreshing multi-authored compendium of 18 articles by 15 authors tat will be of use to all students of Symphyta.
Although emphasis is on the German fauna, tere are implications on the taxonomy of Symphyta worldwide.
www.insecta.de /shop/infos/3473.htm   (1105 words)

  
 Symphyta   (Site not responding. Last check: 2007-11-07)
Symphyta is a group of insects a suborder of the Hymenoptera.
Keys to the Insects of the European Part of the USSR: Hymenoptera : Symphyta, Vol 3 Part 6 (Keys to the Fauna of the USSR, No 3, Part 6)
Salvatore, Uniat Church, Uniat, Immortal Beloved, Third-World, Postcolonial, Institute of Medicine, Genetic program, USA TODAY, ADAT, Lou Hoover, Digital audio workstation, List of escort aircraft carriers of the United States Navy, Commissioner, Lower New York Bay, USS Rabaul, About this article.
www.freeglossary.com /Symphyta   (320 words)

  
 Symphyta Publications   (Site not responding. Last check: 2007-11-07)
Simultaneous analysis of the basal lineages of Hymenoptera (Insecta) using sensitivity analysis.
Westendorff, M. & Taeger, A. New data on chromosomes of sawflies in the families Argidae, Cimbicidae and Cephidae (Hymenoptera, Symphyta).
Patterns of chromsome banding in the sawfly family Tenthredinidae (Hymenoptera, Symphyta).
www.kean.edu /~symphytos/Publ.html   (1076 words)

  
 Wasp Control   (Site not responding. Last check: 2007-11-07)
A wasp is any insect of the order Hymenoptera and suborder Apocrita that is not a bee, sawfly, or an ant.Less familiar, the suborder Symphyta includes the sawflies and wood Wzsp s, which differ from the Apocrita by having a broad connection between the thorax and abdomen.
Also, Symphyta larvae aremostly herbivorous and " caterpillarlike ", whereas those of Apocrita are largely predatory or parasitic.
Most familiar Wazp s belong to the Aculeata, a division of the Apocrita whose ovipositors are modified into a venomousstinger that includes ants and bees.
www.musicians-resource.com /site/28329-wasp-control.html   (282 words)

  
 antbase.org
orthandrous copulation, in nontenthredinoid Symphyta, some Xyelidae, and all Apocrita (Hymenoptera), copulation in which the genitalia are not rotated, but must mount back of and curve abdomen beneath hers (Tuxen, after Crampton); see strophandrous copulation.
Orussoidea, superfamily within the Symphyta (Hymenoptera), including the family Orussidae, closely related to, and perhaps justifiably combined with, the Siricoidea (Gauld and Bolton).
parascutal lobe, in adult Syricidae (Hymenoptera: Symphyta), region of the mesoscutum delineated by an oblique furrow anteroventral to the scutellum (Gibson).
www.antbase.org /databases/glossary_files/glossary_NP.htm   (6041 words)

  
 Order   (Site not responding. Last check: 2007-11-07)
They vary from minute parasitoids of other insect eggs up to huge wasps and bees, but all have the wasp waist.
There is one other suborder of Hymenoptera, the Symphyta, in which the wasp waist is absent.
Symphyta, including the sawflies and wood wasps shown here are generally shining, hard bodied insects with transparent wings.
www.uoguelph.ca /~samarsha/STEVEweb/html/Hymenoptera.htm   (93 words)

  
 hymenoptera   (Site not responding. Last check: 2007-11-07)
The wasps, bees, and ants together make up a suborder of the Hymenoptera called the Apocrita, characterized by a constriction between the first and second abdominal segments called a wasp-waist.
The remaining forms (sawflies) were once classified as a second suborder, the Symphyta, but this appears to be paraphyletic.
Hymenopterans classified in the suborder Symphyta include the following superfamilies:
www.yourencyclopedia.net /hymenoptera.html   (297 words)

  
 SAWFLY - CURRENT DIVERSITY OF SAWFLIES   (Site not responding. Last check: 2007-11-07)
Among the symphyta, 450 species have been recorded and 33 more are expected since they occur in Michigan, northern Ohio and northern New York.
The most diverse genus is Tenthredo with 53 species (11% of the symphyta fauna).
Tenthredo and the ten most diverse genera (Dolerus with 41, Macrophya with 34, Nematus with 21, Pristiphora with 17, Arge with 16, Acantholyda and Pamphilius each with 14, Neodiprion with 13 and Hoplocampa and Ametastegia each with 10) comprise 50% (241 species) of the total known and expected diversity in the Ecozone.
www.naturewatch.ca /Mixedwood/sawfly/sawfly2.htm   (877 words)

  
 Symphyta   (Site not responding. Last check: 2007-11-07)
Symphyta es un grupo de insectos, un suborder taxonómico de los himenópteros.
El Symphyta se refiere común como sawflies, e incluye los insectos que pertenecen a varias familias.
Los consideran ser los himenópteros más primitivos y se relacionan de cerca con las avispas, las abejas y las hormigas, ésas que son miembros del suborder Apocrita.
www.yotor.net /wiki/es/sy/Symphyta.htm   (318 words)

  
 Hautflügler - Wikipedia
Die Männchen entwickeln sich parthenogenetisch aus nicht befruchteten Eiern, Weibchen schlüpfen hingegen aus befruchteten Eiern.
Nach der klassischen Einteilung unterscheidet man Pflanzenwespen (Symphyta) und Taillenwespen (Apocrita).
Die Taillenwespen besitzen im Gegensatz zu den Symphyta die so charakteristische "Wespentaille".
de.wikipedia.org /wiki/Hautfl%C3%BCgler   (600 words)

  
 Publications of Stefan Schmidt
A revision of the Australasian genus Orussobaius (Hymenoptera: Symphyta, Orussidae).
Schmidt, S. and Brown, G. A new genus and species of Australian pergid sawfly (Hymenoptera: Symphyta, Pergidae) causing damage on grass (Poaceae).
Schmidt, S., Macdonald, J., Walter, G.H., Häuser, C.L. and A. Taeger: New perspectives on the phylogenetics of the Gondwanan sawfly family Pergidae (Hymenoptera: Symphyta).
www.zsm.mwn.de /hym/e/pub_schmidt.htm   (1026 words)

  
 Sawflies (Hymenoptera: Symphyta) Chapter: Assessment of species diversity in the Montane Cordillera Ecozone   (Site not responding. Last check: 2007-11-07)
Not only, the genus Tenthredo is the most diverse among Symphyta in the ecozone, but it is also the most commonly collected type of sawfly in most habitats except in open prairie and semidesert habitats.
The limited amount of agricultural land, and the limited use of herbicides and insecticides in most ecoregions may explain the predominance of Tenthredo specimens.
In conclusion, the general trends of population changes are that most native species probably have maintained normal population levels, and that the few introduced species may be spreading.
www.naturewatch.ca /eman/reports/publications/99_montane/sawflies/sawfly06.html   (455 words)

  
 Dr. James T. Costa
I am primarily interested in the ecology and evolution of social insects, in particular the social Lepidoptera and Symphyta, with a parallel interest in the history and philosophy of social insect biology.
Trail-marking and foraging behavior of social caterpillars and sawflies, in particular Arsenura armida, a Neotropical saturniid moth we study in Costa Rica, and the North American diprionid sawfly Neodiprion lecontei.
Larval communication and group foraging dynamics in the red-headed pine sawfly, Neodiprion lecontei (Fitch) (Hymenoptera: Symphyta: Diprionidae).
www.wcu.edu /as/biology/costa/costa.html   (518 words)

  
 GBIF portal: ECAT Seed Money Awards for 2004
Symphyta or sawflies, a group of Hymenoptera, are economically important as agricultural, forest, and horticultural pests and beneficial as biological control agents against invasive plants.
This includes previous 15 year investment on a large global and already highly standardized database, which will be brought together with several regional datasets.
ECatSym hires major driving forces behind Symphyta taxonomy, which will form a consensus on competing taxonomic systems and thus reduce the serious taxonomic impediment for this group.
www.gbif.org /Stories/STORY1103211930   (2423 words)

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