Coelostomidia
{{Use dmy dates|date=April 2024}}
{{use New Zealand English|date=April 2024}}
{{Short description|Genus of true bugs}}
{{Automatic taxobox
| image = HEMI Margarodidae Coelostomidia zealandica f.png
| image_caption = Female Coelostomidia zealandica by Des Helmore
| image2 = HEMI Margarodidae Coelostomidia wairoensis m.png
| image2_caption = Male Coelostomidia wairoensis by Des Helmore
| taxon = Coelostomidia
| authority = (Maskell, 1880)
| subdivision_ranks = Species
| subdivision = See text
| synonyms = {{Genus list
| Caelostoma | Maskell, 1884
| Coelostoma | Maskell, 1880
| Coelostomidea | MacGillivray, 1921
}}
}}
Coelostomidia is a genus of true bugs belonging to the family Coelostomidiidae. The species of this genus are endemic to New Zealand.Morales, C.F. (1991) "[https://www.landcareresearch.co.nz/assets/Publications/Fauna-of-NZ-Series/FNZ21Morales1991.pdf Margarodidae (Insecta: Hemiptera)]", Fauna of New Zealand no. 21, Manaaki Whenua Landcare Research.
{{Linked species list
|Coelostomidia deboerae | Morales, 1991
|Coelostomidia jenniferae | Morales, 1991
|Coelostomidia montana | (Green, 1929)
|Coelostomidia pilosa | (Maskell, 1891)
|Coelostomidia wairoensis | (Maskell, 1884)
|Coelostomidia zealandica | (Maskell, 1880)
}}