Trogiomorpha
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The root of the current tree connects the organisms featured in this tree to their containing group and the rest of the Tree of Life. The basal branching point in the tree represents the ancestor of the other groups in the tree. This ancestor diversified over time into several descendent subgroups, which are represented as internal nodes and terminal taxa to the right.
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close boxCharacteristics
- Antenna generally with more than 20 segments (except an undescribed psyllipsocid from Thailand with a 19-segmented antenna [Yoshizawa et al. 2006]).
- Hypopharyngeal filaments separate, never fused on midline (sometimes reduced in Prionoglarididae).
- Labial palpus two-segmented, with minute basal segment and rounded or somewhat elongated distal segment.
- Distal inner labral sensilla consisting of a row of five identical placoids or trichoids (Badonnel, 1977).
- Tarsi three-segmented.
- Pterostigma in forewing not thickened, completely transparent or slightly opaque.
- Female:
- ventral and dorsal valves of gonapophyses strongly reduced or absent, external valves well developed and setose;
- subgenital plate short, covering at most basal part of external valves, which come close to ventral midline of abdomen, forming the ovipositor.
References
Badonnel A. 1977. Sur les sensilles du bord distal du labre des Psocoptères et leur intérêt taxonomique. Bulletin de la Société Entomologique de France 82: 105–113.
Perrichot, V., D. Azar, D. Neradeau, and A. Nel. 2004. New Psocoptera in the Early Cretaceous amber of SW France and Lebanon (Insecta: Psocoptera: Trogiomorpha). Geological Magazine 140: 669-683.
Yoshizawa, K., C. Lienhard, and K. P. Johnson. 2006. Molecular systematics of the suborder Trogiomorpha (Insecta: Psocodea: 'Psocoptera'). Zoological Journal of the Linnean Society 146: 287-299.
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Page copyright © 2006
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- First online 09 October 2006
- Content changed 09 October 2006
Citing this page:
Tree of Life Web Project. 2006. Trogiomorpha. Version 09 October 2006 (under construction). http://tolweb.org/Trogiomorpha/14450/2006.10.09 in The Tree of Life Web Project, http://tolweb.org/
