ANNOUNCEMENT, Identification
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ANNOUNCEMENT
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Description
Dear Entomology community
I’m currently working in Vietnam on Hitpage plants and have collected an insect that I could only identify to the family/order.
I’m seeking help to determine the genus or species.
I’ve attached photos and collection data. Any suggestions or help would be greatly appreciated.
Short describing:
The leaf-rolling weevil Attelabidae sp.
The adult has a medium body size, approximately 15 mm in length, with an oval shape. Its body is glossy reddish-brown, with fine punctures and evenly spaced longitudinal grooves on the elytra. The elytra bear distinct oval-shaped yellow spots. The distinctly elongated head forms a slender rostrum that projects anteriorly beyond the prototum. The head and prototum occupy about three-fifths of the total body length. This is also a distinguishing feature between sexes. Legs are long and dark reddish. This species exhibits a typical escape behavior by dropping to the ground when disturbed.
The larva is pale orange-yellow, legless, and clearly segmented. It develops inside young rolled leaves, feeding on decomposing leaf tissue within. The adult damages the plant by chewing on young leaves, creating holes. Females roll young leaves to lay eggs, providing a protected environment for larval development. After hatching, the larvae continue to grow and pupate within the same rolled leaf.
This species was recorded in two northern mountainous provinces of Vietnam: Sơn La and Cao Bằng.
Thank you very much for spending time to read and check!
Best regards,
Xuan Mai
I’m currently working in Vietnam on Hitpage plants and have collected an insect that I could only identify to the family/order.
I’m seeking help to determine the genus or species.
I’ve attached photos and collection data. Any suggestions or help would be greatly appreciated.
Short describing:
The leaf-rolling weevil Attelabidae sp.
The adult has a medium body size, approximately 15 mm in length, with an oval shape. Its body is glossy reddish-brown, with fine punctures and evenly spaced longitudinal grooves on the elytra. The elytra bear distinct oval-shaped yellow spots. The distinctly elongated head forms a slender rostrum that projects anteriorly beyond the prototum. The head and prototum occupy about three-fifths of the total body length. This is also a distinguishing feature between sexes. Legs are long and dark reddish. This species exhibits a typical escape behavior by dropping to the ground when disturbed.
The larva is pale orange-yellow, legless, and clearly segmented. It develops inside young rolled leaves, feeding on decomposing leaf tissue within. The adult damages the plant by chewing on young leaves, creating holes. Females roll young leaves to lay eggs, providing a protected environment for larval development. After hatching, the larvae continue to grow and pupate within the same rolled leaf.
This species was recorded in two northern mountainous provinces of Vietnam: Sơn La and Cao Bằng.
Thank you very much for spending time to read and check!
Best regards,
Xuan Mai
Country
Vietnam
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