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This action spread the wing and unfolded longitudinally and transversely. There is the spring mechanism in the wing structure, sometimes with the help of abdomen movement, to keep the wing in folded position. The beetle wing venation is reduced and modified due to the folding structure, which include: [49]
Hymenoptera is a large order of insects, comprising the sawflies, wasps, bees, and ants. Over 150,000 living species of Hymenoptera have been described, [ 2 ] [ 3 ] in addition to over 2,000 extinct ones. [ 4 ]
Chalcid wasps (/ ˈ k æ l s ɪ d /, from Greek khalkos 'copper', for their metallic colour) [1] are insects within the superfamily Chalcidoidea, part of the order Hymenoptera. The superfamily contains some 22,500 known species, and an estimated total diversity of more than 500,000 species, meaning the vast majority have yet to be discovered ...
The two families are unified by several characters, the most visible of which is their wing venation is greatly reduced in a very specific and unique way; the costal and radial veins have fused so no costal cell is present, a short break occurs at the stigma, and the only vein in the wing membrane itself is the radial sector, which is short and ...
Wing venation patterns are otherwise highly variable. The antennae typically have 16 segments or more; the trochanters have two segments. Females often have long ovipositors, an organ that largely varies interspecifically. This variation is closely related to the host species upon which the wasp deposits its egg.
Insect wing venation, showing the names after the Comstock–Needham system. The Comstock and Needham system attributes different names to the veins on an insect's wing. From the anterior (leading) edge of the wing towards the posterior (rear), the major longitudinal veins are named: costa C, meaning rib; subcosta Sc, meaning below the rib
The wing venation is the most complete among Hymenoptera: Only in Xyelidae the radial sector Rs furcates into the veins Rs1 and Rs2, while in other Hymenoptera Rs1 is absent. The females bear a more or less long ovipositor, which in some species of Xyela may be as long as the body. Morphology of the ovipositor and the ovipositor sheath are ...
The Stizina is a subtribe of small to large-sized sand wasps in the tribe Bembicini. [1] The subtribe is distinguished primarily by features of wing venation. Members of the genus Stizus are large, and superficially resemble cicada-killer wasps (genus Sphecius, in the related subtribe Spheciina), and members of the genus Stizoides are cleptoparasites in the nests of other Crabronids.