
1) Airborne beetles 2) Debut single 3) Lightning bugs 4) Number-one single in Scotland
Found on
https://www.crosswordclues.com/clue/fireflies

1) Beetles 2) Glitterbugs 3) Lampyridae
Found on
https://www.crosswordclues.com/clue/fireflies
[Owl City song] The single attained worldwide success in late 2009 through early 2010, topping the charts in Australia, Belgium, Denmark, Ireland, Finland, Netherlands, Norway, Sweden, the United Kingdom, and the United States. `Fireflies` was Owl City`s only hit in the US Top 40 until three years later when `Good Time`, a duet with Canadia...
Found on
http://en.wikipedia.org/wiki/Fireflies_(Owl_City_song)
[computer graphics] Fireflies are rendering artifacts resulting from numerical instabilities in solving the rendering equation. They manifest themselves as anomalously-bright single pixels scattered over parts of the image. Fireflies need to be distinguished from noise (overall graininess in the image), which can be reduced by simply increa...
Found on
http://en.wikipedia.org/wiki/Fireflies_(computer_graphics)

• (pl. ) of Firefly
Found on
http://thinkexist.com/dictionary/meaning/fireflies/

fireflies A sprinkle of fireflies.
Found on
http://www.wordinfo.info/words/index/info/view_unit/3676/8

Lampyridae - a family of beetles, also known as glow-worms, and most notable for their ability to emit light.
Found on
https://www.amentsoc.org/insects/glossary/begins/with/f/
No exact match found.