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-...
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 ...
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 ...
This is a male Carrhotus sannio (the females are brown/grey). The white dorsal stripe on the cephalothorax is right beneath the outside eye; the upside-down v-marks on the back of the abdomen point to two white lines (sometimes broken) which run parallel to the length.
Gallery of males:
This may be, though not sure, one of the supporting bones of the dorsal spine of the black drum,
Pogonias cromis also known as drum or drummer.
It is the only species in the genus Pogonias.
Freshwater drums are native to Ohio, preferring habitats of deeper pools of rivers and in Lake Erie with clear water and clean bottoms. They spawn from April ...
It seems like they're both springtail species, as suggested by Arthur's comment.
The white one appears to be a type of folsomia, which is easy enough to guess from the appearance (mine don't jump though, I guess ruling out folsomia candida?).
You can compare it to this image of one, from Wikipedia:
I purchased a cheap USB microscope to inspect the second ...