Hypera rumicis

Hypera rumicis

Hypera rumicis is a species of true weevil in the family of beetles known as Curculionidae.
Hypera rumicis - Cocoons with pupae inside Here are some of the beetles that emerged:
https://www.jungledragon.com/image/71585/hypera_rumicis_-_imagos_from_cocoons.html
The weevils in the the subfamily Hyperinae are untypical for weevils in their development as the larvae are free living on the host plant's surface, much like most butterfly caterpillars. Most weevils develop underground or internally in the plant. The larvae also look a little bit like caterpillars. When these are ready to pupate they will create a cocoon made of secretions and pupate inside of it. The cocoons can be quite different in appearance and substance between species.
For example, here is the (empty) cocoon of Hypera arator:
https://www.jungledragon.com/image/71599/hypera_arator_-_cocoon.html Cocoon,Curculionidae,Hypera,Hypera rumicis,Hyperinae,Pupae,rumicis

Distribution

It is found in Europe and North America.

References:

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Taxonomy
KingdomAnimalia
DivisionArthropoda
ClassInsecta
OrderColeoptera
FamilyCurculionidae
GenusHypera
SpeciesH. rumicis
Photographed in
Netherlands