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Scales are present on the bodies of various insects. A notable example are the Lepidoptera, the insect order comprising moths and butterflies, which have scales on their wings and on the head, parts of the thorax and abdomen, and parts of the genitalia. The name is derived from Ancient Greek λεπίδος (scale) and πτερόν (wing). [1]
Wing scales form the colour and pattern on wings. The scales shown here are lamellar. The pedicel can be seen attached to a few loose scales. The wings of Lepidoptera are minutely scaled, which gives the name to this order; the name Lepidoptera was coined in 1735 by Carl Linnaeus for the group of "insects
Immature males are smaller, less elongated and have a white scale cover. During heavy infestations, white wax secretions become abundant, giving the infected leaf a whitish appearance. Like in other scale insects, adult males are wasp-like with 1 pair of wings, one pair of halteres, and non-functional mouthparts. [2] [5] [4]
Scales on a luna moth (Actias luna) Generalized structure of a keeled, lanceolate scale from a jumping spider. 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 ...
The scales are often so crowded together as to make them difficult to discern individually. The cumulative presence of so many insects sucking its sap weakens the plant and reduces the sucrose and dry matter content of the crop. Heavy infestations can cause decay and death of the stalks. [2]
Lepidoptera (/ ˌ l ɛ p ɪ ˈ d ɒ p t ər ə / LEP-ih-DOP-tər-ə) or lepidopterans is an order of winged insects which includes butterflies and moths.About 180,000 species of the Lepidoptera have been described, representing 10% of the total described species of living organisms, [1] [2] making it the second largest insect order (behind Coleoptera) with 126 families [3] and 46 superfamilies ...
The Diptera is a very large and diverse order of mostly small to medium-sized insects. They have prominent compound eyes on a mobile head, and (at most) one pair of functional, membraneous wings, [1] which are attached to a complex mesothorax. The second pair of wings, on the metathorax, are reduced to halteres. The order's fundamental ...
Insect wings are adult outgrowths of the insect exoskeleton that enable insects to fly. They are found on the second and third thoracic segments (the mesothorax and metathorax ), and the two pairs are often referred to as the forewings and hindwings , respectively, though a few insects lack hindwings, even rudiments.