Yes, ladybugs need eachother. Not tecnachly but if you want a good garden you should have at least 2. If not they cant mate or have babys the garden in wich its living in will fail miserably.
No, but they can use body language to communicate to each other.
Yes. They compete with each other for prey such as aphids, mealy bugs, mites, scales, and whiteflies. If they've no other food source, then they turn on each other. This is particularly a problem with Asian ladybugs. These non-natives are out-competing native ladybugs for prey. And they consider native ladybugs prey.
Yes. Ladybugs, in general, are fine with sharing a space with another ladybug, as long as there aren't an uneven amount of each gender; if so, they could fight over the ladybug.
In order to stay warm, ladybugs will huddle in masses with each other. Or they bury themselves under piles of leaves or under rocks.
Yes, ladybugs [Coccinellidae] will eat each other. In fact, cannibalism is a major threat to native ladybug populations in the United States of America. They're being outcompeted for food sources by Asian or Japanese ladybugs [Harmonia axyridis], which consider the natives prey.
Ladybugs eat other insects and their larvae.
They reproduce as normal ladybugs do. They have other diffrences
Yes! they do need to eat.
yes
The habitat that you need to breed ladybugs includes plants that produce steady aphid populations.
Ladybugs are not deadly to other animals they are just friendly animal.
At their 'caterpillar' stage, they will eat each other, but otherwise they are preyed upon by spiders, birds, and larger omnivorous beetles.