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Goliathus

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About Goliathus

  • Rank
    Beetle
  • Birthday 02/27/1973

Profile Information

  • Gender
    Male
  • Location
    The Living Planet
  • Interests
    Coleoptera (esp. Scarabaeidae, Lucanidae, Cerambycidae, Buprestidae & Curculionidae)

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  1. I haven't seen very many photos of Chrysina with wings spread, but Google Images might be of some help - https://www.google.com/search?q=chrysina+wings+spread&rlz=1C1CHBD_enUS903US903&source=lnms&tbm=isch&sa=X&ved=2ahUKEwiw1pSyrILsAhUBQq0KHRf2Af0Q_AUoAXoECAsQAw&biw=1536&bih=780
  2. Yes, that's very much typical behaviour - mature Chrysina larvae nearly always wander around at the top of the container and chew at the lid for a while, usually in the weeks leading up to pupal cell construction. Why they do it, I have no idea. They'll settle to the bottom and make their cells, eventually. Mine (woodi, beyeri and gloriosa) have done this in every generation I've ever raised. In fact, I have a group of mature L3 woodi that are doing it right now.
  3. In their natural habitat, M. sleeperi larvae feed on the roots / lower trunks of dead, decomposing Cercidium spp. (Palo Verde) trees. In captivity however, they can be reared on flake soil made from oak and other deciduous hardwoods. To reach the particular areas in which this species is found, a 4WD, off-road vehicle is usually needed.
  4. Here's a photo of some L2 and L3 C. gloriosa - https://junsukkim.files.wordpress.com/2016/09/dscn4994.jpg The size of the head, legs, and spiracles are the key indicators of the instars. A freshly molted L2 can be the same physical size as a full-grown L1, but a full-grown L2 will of course be much larger than a full-grown L1. Same for a freshly molted L3 vs. a full-grown L2. At each molt, the size of the larva's hard (sclerotized) body parts increase in size very noticeably - it's only the larva's skin that is capable of expansion between molts.
  5. I'm not sure of the species, but those are Coneheaded katydids (subfamily Conocephalinae) - https://bugguide.net/node/view/4297 They may possibly be Neoconocephalus sp. - https://bugguide.net/node/view/4298
  6. Quite possibly Pelidnota punctata - https://bugguide.net/node/view/3139
  7. What is your substrate made of? Did you do a total substrate change, or only a partial change? How much ventilation do the containers have, and what temperature are you keeping them at? Are the larvae producing plenty of frass pellets?
  8. Nice find! I've always been interested in Prioninae. All of the largest cerambycids (such as Titanus, Callipogon, and Xixuthrus) belong to this group. Also, colorful and strangely-shaped genera like Pyrodes, Psalidognathus, and Prionocalus.
  9. Adult beetles? Moistened paper towels - enough that they largely fill up the container, and leave air pockets throughout. The beetles will burrow into it and feel secure. Bounty brand works well since it's thick and absorbent.
  10. The iridescent species Plinthocoelium suaveolens is also found here at my place, and appears either blue or green, depending on viewing angle. Its host tree is Bumelia (Sideroxylon lanuginosum) -
  11. Does anyone here ever see any Ox Beetles (Strategus antaeus)? This species has a wide distribution, but does it only tend to occur within certain areas of its range? I've seen the more common S. aloeus many times over the years, but probably haven't come across any S. antaeus since the early 1980s.
  12. Found this big female Cottonwood Longhorn (Plectrodera scalator) on a cottonwood in my front yard over the weekend. I've not seen one of these for at least several years. Very unique looking, large species - probably my favorite native US cerambycid. The pattern on the elytra is unique to each individual. The life cycle takes between 1-3 years -
  13. It's hard to choose, but I think that Morpho cypris is probably my favorite butterfly species - Morpho rhetenor helena is similarly intense blue -
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