Stilbotulasnella conidiophora is only known from its original collection in 1979 in Hawai and a more recent iNaturalist observation in 2021 in Canada. The geographical distance between both observations is suggestive of a wide distribution, and the number of records is likely very limited by the minute size of the fruitbodies. However, without further records it is not possible to estimate population size and distribution and the species is assessed as Data Deficient (DD).

Type species of the monotypic genus Stilbotulasnella, created based on its distinct morphological characteristics (Bandoni and Oberwinkler, 1982).

Known from Honolulu in Hawai and Chelsea, Québec in Canada (Bandoni and Oberwinkler, 1982; iNaturalist, 2023).

S. conidiophora has only been recorded in 2 sites, but since its fruitbodies are extremely inconspicuous (around 0.2 to 0.3 mm) and observations were made in distant regions, the number of locations is likely much larger. Nevertheless, without targeted search efforts it is not possible confirm if this species is under sampled or rare.

Specimens in Hawaii were found on a decaying palm frond and specimens from Canada were growing on bark of dead hardwood (Bandoni and Oberwinkler, 1982; iNaturalist, 2023).

More research and search efforts are needed to determine distribution and population size for this species.