5 A case-bearing leaf beetle at Molonglo Valley, ACT
Identification history
| Cadmus (Lachnabothra) subgenus | 24 Sep 2022 | MichaelMulvaney | ||
| Cadmus (Lachnabothra) sp. | 23 Sep 2022 | KimberiRP | ||
| Cryptocephalinae (sub-family) | 19 Feb 2022 | AlisonMilton | ||
| Cryptocephalinae (sub-family) | 4 Dec 2021 | CathB |
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User's notes
Two beetles that hatched on consecutive days from cases collected from a Cassinia on 30 Oct (sighting 4408335) and an Exocarpos on 1 Nov, both in Aranda Bushland. One was slightly more, the other slightly less, than 5 mm. Possibly a male and a female of the same species?
8 comments
CathB
wrote:
18 Sep 2022
Hi Roger. I have only ever seen active larvae on the ground, but I’ve noticed the cases on all sorts of plants, often grasses. I had assumed that the larvae feed in the leaf litter and then crawl up any convenient plant to pupate, but I will have to look more closely to see if they are feeding on the plants.
RogerF
wrote:
18 Sep 2022
Yes, I have only seen the larvae in the litter, postively heaving wth them on one occasion in Tallaganda. Probably any plant will do for pupation, possibly to escape predators.
I wondedr if Kim can identify this adult.
I wondedr if Kim can identify this adult.
CathB
wrote:
18 Sep 2022
Beetles that hatched from similar cases were identified as Cadmus (Brachycaulus) ferrugineus. See sightings 4415802 and 4416390
RogerF
wrote:
18 Sep 2022
I learnt a new word for these case bearers "camptosomate". Caroline Chaboo seems to be the expert on them.
RogerF
wrote:
18 Sep 2022
There are over 500 species of Cryptos in Australia, all case bearers. My colleague Chris Reid from the Australian Museum is the expert on Australian species. Would you like me to send him your image.
KimberiRP
wrote:
23 Sep 2022
Both beetles in the images are males. The females are significantly larger, more robust and with shorter antennae.
Location information
- Coordinates 149.081109-35.272740
- Maps Aranda Bushland
- Places Molonglo Valley, ACT
Sighting information
- At least 1 Abundance
- 2 Dec 2021 12:52 PM Recorded on
- CathB Recorded by
-
Collections
Featured Insects Leaf beetles (Chrysomelidae) Beetles (Coleoptera) CathB Canberra & Southern Tablelands NatureMapr
Additional information
- Cassinia longifolia and Exocarpos cupressiformis Associated plant
- 5mm to 12mm Animal size
Species information
- Cadmus (Lachnabothra) subgenus Scientific name
- A case-bearing leaf beetle Common name
- Not Sensitive
- Local native
- Non-invasive or negligible
- Up to 754m Recorded at altitude
- Machine learning
- External link More information
-
Synonyms
Lachnabothra sp.
Record quality
- Images or audio
- More than one media file
- Verified by an expert moderator
- Nearby sighting(s) of same species
- GPS evidence of location
- Description
- Additional attributes
