Fourth instar Chinese silkmoth larva
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Fourth instar Chinese silkmoth larva
A 4th instar larva of the Saturnid moth, Samia cynthia. S. cynthia is a native of Eastern China, where its cocoons are one source of wild silk. It is now found locally in the wild in Europe and the USA, the result of failed attempts to exploit its silk production. The larva in this picture is growing on privet (Ligustrum vulgare) in captivity. The picture shows the features of the external anatomy of the larva. It is attached to the food plant by means of a pair of terminal claspers (bottom) and four pairs of abdominal false legs. The black dots in a row on the left side of the body are spiracles, through which the animal breathes. The prominent protrusions from the top of the body (i.e. left) are tubercles. At the top of the body are the three pairs of true (thoracic) legs and the head. The larva is approximately 6cm long
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Media ID 9223513
© DR JEREMY BURGESS/SCIENCE PHOTO LIBRARY
China Instar Larva Samia Cynthia Silkmoth Spiracles Tubercles Claspers Ligustrum Vulgare Privet
EDITORS COMMENTS
This print showcases a fourth instar Chinese silkmoth larva, belonging to the Saturnid moth species known as Samia cynthia. Originally native to Eastern China, this particular larva is seen thriving on privet (Ligustrum vulgare) in captivity. The image beautifully captures the intricate external anatomy of the larva. The distinct features of this remarkable creature are prominently displayed in the photograph. At the bottom, a pair of terminal claspers can be observed, which firmly attach it to its food plant. Additionally, four pairs of abdominal false legs provide stability and mobility for the larva. A row of black dots running along its left side represents spiracles - vital breathing openings through which this incredible insect draws oxygen. The top part of its body exhibits protrusions called tubercles that add texture and character to its appearance. Atop its body sit three pairs of true (thoracic) legs and a distinguishable head that completes this fascinating insect's profile. Measuring approximately 6cm long, this vibrant larva exemplifies nature's diversity and resilience. While failed attempts at exploiting their silk production led to their introduction in Europe and the USA, these enchanting creatures continue to captivate observers with their unique beauty and adaptability across different environments.
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