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Topic: Exopterygota

	Exopterygota - Wikipedia, the free encyclopedia
		The Exopterygota, also known as Hemipterodea, are a superorder of insects of the subclass Pterygota, in which the young resemble adults but have externally-developing wings.
		The Exopterygota are a highly diverse insect superorder, with at least 130,000 known species divided between eighteen orders.
		Exopterygota ("external winged forms") develop wings on the outside of their bodies without going through a pupal stage.
	en.wikipedia.org /wiki/Exopterygota (176 words)

	Encyclopedia: Exopterygota
		It is almost impossible to believe that any species of insect that has for a long period developed the wings outside the body could change this mode of growth suddenly for an internal mode of development of the organs in question, for, as we have already explained, the two modes of growth are directly opposed.
		The change that is required to transform Exopterygota into Endopterygota is merely that a cell of hypodeimis should proliferate inwards instead of outwards, or that a minute hypo-dermal evaginated bud should be forced to the interior of the body by the pressure of a contracted cuticle.
		As regards wing-structure, the Isoptera with the two pairs closelysimilar are the most primitive of all winged insects; while in the paired mesodermal genital ducts, the elongate cerci and the conspicuous maxillulae of their larvae the Ephemeroptera retain notable ancestral characters.
	www.nationmaster.com /encyclopedia/Exopterygota (1592 words)

	RELATIONSHIPS AND - Online Information article about RELATIONSHIPS AND (Site not responding. Last check: 2007-10-20)
		From all points of view it appears, therefore, probable that Endopterygota are descended from Exopterygota, and we are brought to the question as to the way in which this has occurred.
		There are, in fact, existing forms of Exopterygota that are usually wingless, and that nevertheless appear in certain seasons or localities with wings.
		We conclude, therefore, that the primitive stock of the former sub-class became early differentiated from that of the latter.
	encyclopedia.jrank.org /RAY_RHU/RELATIONSHIPS_AND.html (4435 words)

	[No title] (Site not responding. Last check: 2007-10-20)
		Among the winged insects, two major types can be recognised The Exopterygota, with wings developing externally as wing pads in the immature, and The Endopterygota, with wings developing internally.
		In the Exopterygota the rudimentary wings are recognizable as stiff, immovable pads on the thorax, and well-developed legs, antennae, and compound eyes are visible.
		The paurometabolous insects may be distinguished by the striking similarity between the adult form and the immature, known as a nymph.
	www.biology.qmw.ac.uk /research/staff/s-araya/insecta1.DOC (2198 words)

	Studqus3 (Site not responding. Last check: 2007-10-20)
		Discuss the life cycle of the aphid, including the mechanism by which it can attain such high population numbers.
		Discuss the role of hormones in controlling molting, metamorphosis, and reproduction in hemimetabolous and holometabolous insects.
		Discuss the use of ligation, decapitation and implantation in early research on insect hormones.
	www.wm.edu /biology/entomology/Studqus3.html (1248 words)

	Hemimetabolous (Site not responding. Last check: 2007-10-20)
		One classification includes insects that have immatures with external wing pads, the Exopterygota, and species that have internal wing pads as larvae, the Endopterygota.
		Another classification agrees with the previous demarcations but substitutes Hemimetabola for Exopterygota and Holometabola for Endopterygota.
		Another view separates the Exopterygota into Paurometabola (for those whose immatures develop terrestrially) or Hemimetabola (whose immatures inhabit water) and retains the Endopterygota as a single unit, the Holometabola.
	www.inra.fr /Internet/Produits/HYPPZ/ZGLOSS/6g---180.htm (179 words)

	[No title] (Site not responding. Last check: 2007-10-20)
		This group is comprised by the orders of insects which are holo-metabolous, have larval (vs. nymphal) stages, and separated from the Exopterygota in that they have an internal vs. external wing development.
		Examples from this group are the Coleoptera, Lepidoptera and.
		Not included with this group are the Hemiptera, Homoptera, Orthoptera and Isoptera.
	www.bugpeople.org /taxa/Endopterygota/SubclassEndopterygotaDescr.htm (53 words)

	Projekty - Annual Report - Prirodovedecka fakulta Univerzity Komenskeho Bratislava
		The project is expected to result in better understanding of the life-history strategies of successful invasive species and the interactions between original and invasive species of fish.
		Seasonal dynamics, production, longitudinal zonation and distribution of the Exopterygota group in Slovakia will be evaluated, together with historical, geographical and ecological barriers.
		Seasonal dynamics, production, longitudinal zonation and distribution of the Exopterygota group in Slovakia will be evaluated, together with its historical, geographical and ecological limits.
	www.fns.uniba.sk /prifuk/projekty/annual/program.php?paprac1=211 (1924 words)

	[No title]
		The order Plecoptera belongs to the infraclass Neoptera because stoneflies’ wings fold over their backs at rest.
		Wings develop in external wingpads, a characteristic that places Plecoptera in the division Exopterygota.
		North American stoneflies are generally divided into two groups, Euholognatha and Systellognatha, based on major differences in mouthpart morphology and, hence, feeding biology.
	lakes.chebucto.org /ZOOBENTH/PRIMER1/plecopte.doc (570 words)

	Untitled Document
		M L. Orders and Families - Entognatha, Apterygota, Exopterygota (Chap.
		F L. Orders and Families - Exopterygota (Chap.
		W L. Test II (Classification; Orders, Families through Exopterygota)
	www.caf.wvu.edu /PLSC/entomology/Butler/courses/ento404.html (348 words)

	Entomology Courses Temp.
		Recognition of Apterygota and Paleoptera; characters and methods of study.
		Recognition of Neoptera (Exopterygota): characters and methods of study.
		Recognition of Neoptera (Endopterygota): characters and methods of study.
	entomology.wsu.edu /courses/entom439.html (104 words)

	Aerodynamics of Animals - Insects - Instructor
		Full sized and functional wings occur only in adult insects with the exception of the Mayflies.
		However, developing wings may have been seen as small, fleshy pads on the thorax of immature insects called nymphs in the Exopterygota and the pupae of the Endopterygota
		On each wing, there are thickened lines and ridges called veins.
	wings.avkids.com /Book/Animals/instructor/insects-02.html (1126 words)

	FFB 102 (Site not responding. Last check: 2007-10-20)
		Important characters of insect orders- Apterygota- (Collembola and Thysanura) and Exopterygota (Ephemeroptera, Odonata, Dictyoptera, Dermaptera, Embioptera, Psocoptera Mallophaga, Siphunculata and Phasmida)
		Experimental studies on the location of sense organs - response to food, taste and light and defense behaviour of insects - behavioural, structural, chemical and colourational defense.
		Observing the characters of important orders of Apterygota (Collembola and Thysanura); Exopterygota (Ephemeroptera, Odonata, Dictyoptera, Dermaptera, Embioptera, Psocoptera, Mallophaga, Siphunculata and Isoptera)
	www.tnau.ac.in /notesbscag/ugsyl/for/2semester/ffb102.htm (1042 words)

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