Dere thoracica

This lovely little (8mm) longhorn was running around on an old log and would not keep still! It flew onto my hand and then away into the forest…

Dere thoracicaDere thoracica

Coleoptera: Cerambycidae
Dere thoracica
longhorn beetle = hotaru-kamikiri (“firefly longhorn”)

Location: Fureiai Forest Park (Google map)

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4 Responses to Dere thoracica

  1. cyndi says:

    here’s a random question that is completely unrelated to this post. the other day while “hunting” woodlice jerome found one that had a small rounded yellow mound on it;s underside. was it an eggsack?

  2. Nigel says:

    Hi Cyndi,
    Yes, it sounds like the “brood pouch” (= marsupium) of the woodlouse. The female lays her eggs inside it and when these hatch, the young stay in the brood pouch, kind of like baby kangaroos, so the technical term for it is the marsupium.

  3. cyndi says:

    wow how interesting. thanks for answering my question. i told my son they were eggs so i just wanted to clarify. thanks Nigel

  4. Nigel says:

    Stupid me, the word “marsupium” is from the Latin for “pouch, purse” and so it’s used for both the woodlice egg pouch and for “Marsupialia,” the group of mammals containing kangaroos/koalas etc.

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