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In most Odonata there is a structure on the leading edge near the tip of the wing called the pterostigma. This is a thickened, hemolymph–filled and often colorful area bounded by veins. The functions of the pterostigma are not fully known, but it most probably has an aerodynamic effect [4] and may also have a visual function. More mass at the ...
Odonata is an order of predatory flying insects that includes the dragonflies and damselflies (as well as the Epiophlebia damsel-dragonflies). The two major groups are distinguished with dragonflies (Anisoptera) usually being bulkier with large compound eyes together and wings spread up or out at rest, while damselflies (suborder Zygoptera) are usually more slender with eyes placed apart and ...
Hsiu-fu Chao (1953) The external morphology of dragonfly Onychogomphus ardens Needham. Smithsonian Miscellaneous Collections, 122(6): 1–56. Lieftinck, M.A. (1960) On the identity of some little known southeast Asiatic Odonata in European museums described by E. de Selys Longchamps with descriptions of new species. Memorie della Societa ...
Insect morphology is the study and description of the physical form of insects. ... Odonata have their humeral plates greatly enlargened, [38] ...
The humeral plate is usually a small sclerite on the anterior margin of the wing base, movable and articulated with the base of the costal vein. Odonata have their humeral plate greatly enlarged, [15] with two muscles arising from the episternum inserted into the Humeral plates and two from the edge of the epimeron inserted into the axillary plate.
Articles relating to the Odonata, an order of flying insects that includes the dragonflies and damselflies. Members of the group first appeared during the Triassic , though members of their total group , Odonatoptera , first appeared in Late Carboniferous .
Coenagrionidae is a family of damselflies, also known as pond damselflies, in the order Odonata and the suborder Zygoptera. [2] The Zygoptera are the damselflies, which although less known than the dragonflies, are no less common. More than 1,300 species are in this family, making it the largest damselfly family.
Damselflies are flying insects of the suborder Zygoptera in the order Odonata. They are similar to dragonflies (which constitute the other odonatan suborder, Epiprocta) but are usually smaller and have slimmer bodies. Most species fold the wings along the body when at rest, unlike dragonflies which hold the wings flat and away from the body.