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Hypera rumicis - Imagos from cocoons In 2008 I took in some cocoons of Hypera rumicis and let the beetles mature at home to document this part of the development:<br />
<figure class="photo"><a href="https://www.jungledragon.com/image/71587/hypera_rumicis_-_cocoons_with_pupae_inside.html" title="Hypera rumicis - Cocoons with pupae inside"><img src="https://s3.amazonaws.com/media.jungledragon.com/images/3043/71587_thumb.jpg?AWSAccessKeyId=05GMT0V3GWVNE7GGM1R2&Expires=1587600010&Signature=DV8z8fs1qu3r3kPP4d94XvrEtQ8%3D" width="200" height="150" alt="Hypera rumicis - Cocoons with pupae inside Here are some of the beetles that emerged:<br />
https://www.jungledragon.com/image/71585/hypera_rumicis_-_imagos_from_cocoons.html<br />
The weevils in the the subfamily Hyperinae are untypical for weevils in their development as the larvae are free living on the host plant&#039;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.<br />
For example, here is the (empty) cocoon of Hypera arator:<br />
https://www.jungledragon.com/image/71599/hypera_arator_-_cocoon.html Cocoon,Curculionidae,Hypera,Hypera rumicis,Hyperinae,Pupae,rumicis" /></a></figure><br />
<figure class="photo"><a href="https://www.jungledragon.com/image/71588/hypera_rumicis_-_teneral_beetle_still_in_cocoon.html" title="Hypera rumicis - Teneral beetle still in cocoon"><img src="https://s3.amazonaws.com/media.jungledragon.com/images/3043/71588_thumb.jpg?AWSAccessKeyId=05GMT0V3GWVNE7GGM1R2&Expires=1587600010&Signature=fi1c%2BYGwi15m7FV94aHOBQoVKl8%3D" width="200" height="150" alt="Hypera rumicis - Teneral beetle still in cocoon Normally the beetle&#039;s eclosure from the pupal skin all happens inside the cocoon so that the teneral beetle remains protected while hardening. Only after it is fully ready it will (be able to) chew through the tough cocoon and walk away into the world.  Cocoon,Curculionidae,Hypera,Hypera rumicis,Hyperinae,Teneral,rumicis" /></a></figure><br />
<figure class="photo"><a href="https://www.jungledragon.com/image/71586/hypera_rumicis_-_pupa_and_teneral_beetle.html" title="Hypera rumicis - Pupa and teneral beetle"><img src="https://s3.amazonaws.com/media.jungledragon.com/images/3043/71586_thumb.jpg?AWSAccessKeyId=05GMT0V3GWVNE7GGM1R2&Expires=1587600010&Signature=tVu7OhHB%2FN%2B4jCzgOkmcSM3gzRA%3D" width="200" height="150" alt="Hypera rumicis - Pupa and teneral beetle Te get a better look, I removed a pupa from its &quot;cage&quot; (cocoon) - very tough material! ...<br />
Normally pupa and teneral beetle will remain in the cocoon for protection<br />
https://www.jungledragon.com/image/71588/hypera_rumicis_-_teneral_beetle_still_in_cocoon.html Curculionidae,Hypera,Hypera rumicis,Hyperinae,Pupae,rumicis,teneral" /></a></figure><br />
 Curculionidae,Hypera,Hypera rumicis,Hyperinae,rumicis Click/tap to enlarge Species introCountry intro

Hypera rumicis - Imagos from cocoons

In 2008 I took in some cocoons of Hypera rumicis and let the beetles mature at home to document this part of the development:

Hypera rumicis - Cocoons with pupae inside Here are some of the beetles that emerged:<br />
https://www.jungledragon.com/image/71585/hypera_rumicis_-_imagos_from_cocoons.html<br />
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.<br />
For example, here is the (empty) cocoon of Hypera arator:<br />
https://www.jungledragon.com/image/71599/hypera_arator_-_cocoon.html Cocoon,Curculionidae,Hypera,Hypera rumicis,Hyperinae,Pupae,rumicis

Hypera rumicis - Teneral beetle still in cocoon Normally the beetle's eclosure from the pupal skin all happens inside the cocoon so that the teneral beetle remains protected while hardening. Only after it is fully ready it will (be able to) chew through the tough cocoon and walk away into the world.  Cocoon,Curculionidae,Hypera,Hypera rumicis,Hyperinae,Teneral,rumicis

Hypera rumicis - Pupa and teneral beetle Te get a better look, I removed a pupa from its "cage" (cocoon) - very tough material! ...<br />
Normally pupa and teneral beetle will remain in the cocoon for protection<br />
https://www.jungledragon.com/image/71588/hypera_rumicis_-_teneral_beetle_still_in_cocoon.html Curculionidae,Hypera,Hypera rumicis,Hyperinae,Pupae,rumicis,teneral

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Hypera rumicis is a species of true weevil in the family of beetles known as Curculionidae.

Similar species: Beetles
Species identified by Pudding4brains
View Pudding4brains's profile

By Pudding4brains

Public Domain
Uploaded Dec 24, 2018.