The term "genus Chalcostigma" refers to a specific group or classification of birds known as thornbills. Let's break it down so it’s easy to understand.
You would use "genus Chalcostigma" when talking about scientific classifications of animals, especially in discussions about birds.
In scientific writing or ornithology (the study of birds), you might see this term in discussions about bird taxonomy, conservation efforts, or ecological studies.
There are no idioms or phrasal verbs associated specifically with "genus Chalcostigma," as it is a scientific term.
So, "genus Chalcostigma" is a scientific term used to describe a group of small birds known as thornbills.