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Imperial moth (Eacles imperialis) development from egg to pupa, showing all the different instarsAn instar (/ ˈ ɪ n s t ɑːr / ⓘ, from the Latin īnstar 'form, likeness') is a developmental stage of arthropods, such as insects, which occurs between each moult (ecdysis) until sexual maturity is reached. [1]
Antheraea polyphemus, the Polyphemus moth, is a North American member of the family Saturniidae, the giant silk moths. It is a tan-colored moth , with an average wingspan of 15 cm (6 in). The most notable feature of the moth is its large, purplish eyespots on its two hindwings .
A pupa (from Latin pupa 'doll'; pl.: pupae) is the life stage of some insects undergoing transformation between immature and mature stages. Insects that go through a pupal stage are holometabolous : they go through four distinct stages in their life cycle, the stages thereof being egg, larva , pupa, and imago .
The pupal stage lasts 4 to 5 months before the pupa wriggles up the shaft of the tunnel and, protruding through the covering web, emerges by splitting through the skin of the pupa. [6] [4] Footage has been taken of a pūriri moth chrysalis hatching over a period of one hour and forty minutes. [10] The moth spends the last 48 hours of its life ...
Adults emerge from the pupae to start the life cycle once more. [2] On Jasminum multiflorum, the life cycle of this species takes 27 days on average. The egg stage takes 3.25 days, the larva stage 11 days, the pupa stage 5.5 days, and adults live for 3.5 days (female) or 3.0 days (male). [4]
After this, the larvae pupate and form a cocoon on the Citrus tree, and after about 6 days, a moth will emerge. [4] The P. citri life cycle is anywhere from 17 to 25 days. [1] The exact number of days of each developmental stage and the number of eggs laid are highly dependent on temperature. [4] [1] P. citri can have between 3 and 16 ...
The moth's pupae are approximately 3–4 cm long, and rounded. Female pupae reach 7-10 grams, while male pupae reach 4-7 grams. Pupae are wrapped in a cocoon constructed as a thin single layer of yellow silk. The cocoon is easily permeable by the elements, and has a vent opening at the head end.
Most Lepidoptera larvae will either make a cocoon and pupate inside them or will pupate in a cell under the ground, [21] with the exception of butterflies and advanced moths such as noctuids, whose pupae are exposed. [13] The pupae of moths are usually brown and smooth whereas butterfly pupae are often colourful and their shape varies greatly. [21]