You have a Dosima: Also known as a Buoy Barnacle. A gallery of observations of these can be found here:
They are found in the coastal UK and Spain area, New Zealand, and east and west N.America:
(source: iNaturalist observations)
These barnacles attach themselves to things that float, and if they don't ...
I think you have an Indian Lily Moth (of the genus Polytela). It is considered a minor pest. Their habitat seems to only be around India and its surrounding area.
Their worm matches yours ... smooth, dark, but red patches and white spots:
If you dig in your garden, you may encounter these pupae:
And they eventually grow into these beautifully-...
These pages cite papers that mention A.hui:
The World Spider Catalog (WSC) offers papers to their users for free, and it is a free registration.
Browsing through the second pdf on the WSC, here is a sketch of the dorsal (top) view of the species:
The paper is primarily written ...