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Stereonychus fraxini cocoon with parasitoid wasp inside Main image seems to be a normal cocoon, but from a different angle an orange head with large, widely spaced eyes and dark ocelli between them is already visible inside ... that's no Stereonychus fraxini, but the head of some parasitoid wasp! Cionini,Cocoon,Curculionidae,Curculioninae,Parasitoid wasp,Stereonychus,Stereonychus fraxini Click/tap to enlarge

Stereonychus fraxini cocoon with parasitoid wasp inside

Main image seems to be a normal cocoon, but from a different angle an orange head with large, widely spaced eyes and dark ocelli between them is already visible inside ... that's no Stereonychus fraxini, but the head of some parasitoid wasp!

    comments (2)

  1. That's really neat! Posted 8 months ago
    1. Thanks Christine, I only noticed it myself while sorting through my old series of images - completely missed it while taking the photos! Cheers, Arp Posted 8 months ago

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Stereonychus fraxini is a small Weevil (Curculionidae) in the tribe Cionini, that consists of similar beetles with ectophagous larvae creating secretion cocoons on the plant's substrate to pupate.

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

By Pudding4brains

Public Domain
Uploaded Dec 25, 2018.