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The wings, head parts of thorax, and abdomen of Lepidoptera are covered with minute scales, from which feature the order Lepidoptera derives its names, the word lepidos in Ancient Greek meaning "scale". Most scales are lamellar (blade like) and attached with a pedicel, while other forms may be hair like or specialised as secondary sexual ...
The body or 'blade' of a typical scale consists of an upper and lower lamina. The surface of the lower lamina is smooth whereas the structure of the upper lamina is structured and intricate. Scales are attached to the substrate by a stalk or 'pedicel'. [1] The scales cling somewhat loosely to the wing and come off easily without harming the insect.
Butterflies and moths - the order Lepidoptera (Greek "scale-winged") - have membranous wings covered in delicate, powdery scales, which are modified setae. Each scale consists of a series of tiny stacked platelets of organic material, and butterflies tend to have the scales broad and flattened, while moths tend to have the scales narrower and ...
The wings, head parts of thorax and abdomen of Lepidoptera are covered with minute scales, from which feature the order 'Lepidoptera' derives its names, the word "lepteron" in Ancient Greek meaning 'scale'. Most scales are lamellar, or blade-like and attached with a pedicel, while other forms may be hair-like or specialized as secondary sexual ...
A small cavity in the retina of the eye that hosts a large number of light receptors; more than anywhere else on the retina. About one half of bird species with fovea have a single one, but uniquely in birds, [ 221 ] some, such as terns , kingfishers and hummingbirds , have a second fovea, [ 222 ] called the temporal fovea, that assists in ...
The more advanced groups making up the Neoptera have foldable wings, and their muscles act on the thorax wall and power the wings indirectly. [ 1 ] : 22–24 These muscles can contract multiple times for each single nerve impulse, allowing the wings to beat faster than would ordinarily be possible.
Scale armour is armour in which the individual scales are sewn or laced to a backing by one or more edges and arranged in overlapping rows resembling the scales of a fish/reptile or roofing tiles. [3] The scales are usually assembled and strapped by lacing or rivets. Lorica squamata is an ancient Roman armour of this type. [1]
Laminar cuirasses could be worn with lamellar pauldrons and tassets (worn with separate bracers, greaves and helm). Less common was the opposite combination of lamellar cuirass worn with laminar pauldrons and tassets. Both could be optionally worn with lamellar or laminar cod-piece and loin-guard, or even with mirror plate reinforcement.