Amphiesmenoptera: Difference between revisions
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* dense setae on the [[insect wing|wings]] (modified into scales in Lepidoptera); |
* dense setae on the [[insect wing|wings]] (modified into scales in Lepidoptera); |
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* a particular [[venation]] pattern on the forewings (the double-looped anal veins); |
* a particular [[venation]] pattern on the forewings (the double-looped anal veins); |
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* larvae with mouth structures and glands to make and manipulate [[silk]] <ref name="G&E">{{cite book |author=Grimaldi, D. & M. S. Engel |year=2005 |title=Evolution of the Insects |publisher=[[Cambridge University Press]] | |
* larvae with mouth structures and glands to make and manipulate [[silk]] <ref name="G&E">{{cite book |author=Grimaldi, D. & M. S. Engel |year=2005 |title=Evolution of the Insects |publisher=[[Cambridge University Press]] |isbn=0-521-82149-5}}</ref>. |
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Thus the two sister orders are grouped into the Amphiesmenoptera. The group probably evolved in the [[Jurassic]], diverging from the extinct [[Necrotaulidae]] <ref name="G&E"/>. Lepidoptera differ from the Trichoptera in several features, including wing venation, form of the scales on the wings, loss of the [[cerci]], loss of an [[ocellus]], and changes to the legs <ref name="G&E"/>. |
Thus the two sister orders are grouped into the Amphiesmenoptera. The group probably evolved in the [[Jurassic]], diverging from the extinct [[Necrotaulidae]] <ref name="G&E"/>. Lepidoptera differ from the Trichoptera in several features, including wing venation, form of the scales on the wings, loss of the [[cerci]], loss of an [[ocellus]], and changes to the legs <ref name="G&E"/>. |
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Revision as of 02:49, 16 December 2008
| Amphiesmenoptera | |
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| Scientific classification | |
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| Superorder: | Amphiesmenoptera
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Amphiesmenoptera is an insect superorder, established by Willi Hennig in his revision of insect taxonomy for two sister orders: Lepidoptera and Trichoptera.
Trichoptera and Lepidoptera share a number of derived characters (synapomorphies) which prove their common descent:
- females, rather than males, are heterogametic (i.e. their sex chromosomes differ);
- dense setae on the wings (modified into scales in Lepidoptera);
- a particular venation pattern on the forewings (the double-looped anal veins);
- larvae with mouth structures and glands to make and manipulate silk [1].
Thus the two sister orders are grouped into the Amphiesmenoptera. The group probably evolved in the Jurassic, diverging from the extinct Necrotaulidae [1]. Lepidoptera differ from the Trichoptera in several features, including wing venation, form of the scales on the wings, loss of the cerci, loss of an ocellus, and changes to the legs [1].
Amphiesmenoptera are thought to be the sister group of Antliophora, a proposed superorder comprising Diptera, Siphonaptera and Mecoptera. Together, Amphiesmenoptera and Antliophora compose the group Mecopterida [1].
References
- ^ a b c Grimaldi, D. & M. S. Engel (2005). Evolution of the Insects. Cambridge University Press. ISBN 0-521-82149-5.